Seeheim-Jugenheim is a municipality in the Darmstadt-Dieburg district in Hesse , Germany . It has a population of approximately 17,000.
87-781: Seeheim-Jugenheim consists of seven villages: The municipality was formed on 1 January 1977 through the unification of the previously separate municipalities of Seeheim and Jugenheim. Until 1 January 1978 the municipality was known as Seeheim; after that it became known as Seeheim-Jugenheim. It is known for its mountain bike trails to the nearby mountain Melibokus . Seeheim-Jugenheim has been home to several notable residents throughout history, including Tsar Nicholas II of Russia as well as writers Georg Kaiser and Helene Christaller . Further it has been an ancient Jewish Community. Industrial and commercial activity in Seeheim-Jugenheim
174-622: A 75.1 percent to 24.9 percent margin. The official tally was 103,341 against and 34,324 in favor. Only San Francisco County voted against the measure by a wider margin (75.2% against). According to the California Secretary of State , as of February 10, 2019, Marin County has 161,870 registered voters. Of those, 89,526 (55.31%) are registered Democrats, 23,380 (14.44%) are registered Republicans , 7,020 (4.35%) are registered with other political parties, and 41,908 (25.89%) have declined to state
261-429: A crash occurs there are fewer components to break or cause the rider injury. Bikes are typically built from sturdier materials such as steel to handle repeated heavy impacts of crashes and bails. Trials riding consists of hopping and jumping bikes over obstacles, without touching a foot onto the ground. It can be performed either off-road or in an urban environment. This requires an excellent sense of balance. The emphasis
348-404: A frame bag, handlebar roll, seat pack, and backpack and typical gear includes lightweight and basic camping gear, and a bike repair kit. Mountain bikes are generally used as many bike packing destinations are reached via forest-service roads or singletrack trails. Mountain bikes specific to bike-packing use a slightly taller frame to get the maximum frame bag capacity. This is achieved by using
435-437: A full suspension frame, but at a weight that is suitable for both climbing and descending. Enduro racing includes elements of DH racing, but Enduro races are much longer, sometimes taking a full day to complete, and incorporate climbing sections to connect the timed downhill descents (often referred to as stages). Typically, there is a maximum time limit for how long a rider takes to reach the top of each climb, while finishers of
522-658: A longer headtube, a more horizontal top tube, and a reduced stem degree. Generally, bikepackers tend to cover anywhere from 25 to 75 miles (40 – 120 km) in a given day as the riding can be technical. Cycling and green exercises have proven positive effects on self-esteem and total mood disturbance. Mountain biking is proven to improve mental health and well-being relating to coping abilities and reducing stress. There are strong links between outdoor environments and their therapeutic potential. Marin County, California Marin County ( / m ə ˈ r ɪ n / mə- RIN ; Spanish : Condado de Marín )
609-401: A longer wheelbase, making the bike less agile, and in less travel space for the suspension. The single-speed is considered a return to simplicity with no drivetrain components or shifters but thus requires a stronger rider. Following the growing trend in 29-inch wheels, there have been other trends in the mountain biking community involving tire size. Some riders prefer to have a larger wheel in
696-423: A loop including climbs and descents on a variety of terrain. A typical XC bike weighs around 9–13 kilos (20–30 lbs), and has 0–125 millimeters (0.0–4.9 inches) of suspension travel front and sometimes rear. Cross country mountain biking focuses on physical strength and endurance more than the other forms, which require greater technical skill. Cross country mountain biking is the only mountain biking discipline in
783-491: A motorbike trials rider, began experimenting with off-road bicycle designs. By 1979 he had developed a custom-built lightweight bicycle which was uniquely suited to the wet and muddy off-road conditions found in the south-east of England. They were designed around 2 inch × 650b Nokian snow tires though a 700x47c (28 in.) version was also produced. These were sold under the Cleland Cycles brand until late 1984. Bikes based on
870-465: A number of trails of varying difficulty, and bicycle rental facilities. In 2020, due to COVID-19 , mountain bikes saw a surge in popularity in the US, with some vendors reporting that they were sold out of bikes under US$ 1000. ‹The template Manual is being considered for merging .› The level of protection worn by individual riders varies greatly and is affected by speed, trail conditions,
957-471: A population of 252,409. The racial makeup of Marin County was 201,963 (80.0%) White , 6,987 (2.8%) African American , 1,523 (0.6%) Native American , 13,761 (5.5%) Asian , 509 (0.2%) Pacific Islander , 16,973 (6.7%) from other races , and 10,693 (4.2%) from two or more races. There were 39,069 people of Hispanic or Latino origin, of any race (15.5%). As of the census of 2000, there were 247,289 people, 100,650 households, and 60,691 families residing in
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#17328553536141044-451: A short slalom track, as in 4X. Most bikes used are light hard-tails, although the last World Cup was actually won on a full-suspension bike. The track is downhill and has dirt jumps, berms, and gaps. Professionals in gravity mountain biking tend to concentrate either on downhill mountain biking or 4X/dual slalom because they are very different. However, some riders, such as Cedric Gracia , used to compete in both 4X and DH, although that
1131-519: A storied history of focusing on efficiency, cost-effectiveness, and freedom of travel over varied surfaces. Bikepacking is a self-supported style of lightly loaded single or multiple night mountain biking. Bikepacking is similar to bike touring, however the two sports generally use different bikes and the main difference is the method of carrying gear. Bikepacking generally involves carrying less gear and using smaller frame bags while bike touring will use panniers . A typical bikepacking set-up includes
1218-737: A suspension fork, with either a hard tail or a similar travel rear suspension. Many more technical trails are also used as routes for cross country, enduro, and even downhill racing. Mountain Bike Touring or Marathon is long-distance touring on dirt roads and single track with a mountain bike. With the popularity of the Great Divide Trail , the Colorado Trail and other long-distance off-road biking trails, specially outfitted mountain bikes are increasingly being used for touring. Bike manufacturers like Salsa have even developed MTB touring bikes like
1305-512: A total tax basis of $ 39.8 billion. These parcels are divided into the following classifications: Geographically, the county forms a large, southward-facing peninsula, with the Pacific Ocean to the west, San Pablo Bay , and San Francisco Bay to the east, and – across the Golden Gate – the city of San Francisco to the south. Marin County's northern border is with Sonoma County . Most of
1392-617: A verb since the term "mountain biking" was not yet in use. The first person known to fit multiple speeds and drum brakes to a klunker is Russ Mahon of Cupertino, California , who used the resulting bike in cyclo-cross racing. Early downhill racing on mountain fire roads , caused lesser branded coaster brakes to burn the grease inside, requiring the riders to "repack" the bearings after each race. The first organized series of downhill races in Fairfax, California, known as "Repack Races" triggered early innovations in mountain bike technology as well as
1479-462: A wider frame and fork to allow for a wider tire. The handlebars were also different in that they were a straight, transverse-mounted handlebar, rather than the dropped, curved handlebars that are typically installed on road racing bicycles. Also, some of the parts on early production mountain bicycles were taken from the BMX bicycle. Other contributors were Otis Guy and Keith Bontrager . Tom Ritchey built
1566-613: A year to guided tours of its arch and atrium design. In 1994, a new county jail facility was embedded into the hillside nearby. The United States' oldest cross country running event, the Dipsea Race , takes place annually in Marin County, attracting thousands of athletes. Modern mountain biking has many early origins on the slopes of Mount Tamalpais in Marin. San Quentin State Prison
1653-614: Is a county located in the northwestern part of the San Francisco Bay Area of the U.S. state of California . As of the 2020 census , the population was 262,231. Its county seat and largest city is San Rafael . Marin County is across the Golden Gate Bridge from San Francisco, and is included in the San Francisco–Oakland–Berkeley, CA Metropolitan Statistical Area . Marin County's natural sites include
1740-434: Is an increasingly popular genre that combines big-air, stunt-ridden freeride with BMX style tricks. Slopestyle courses are usually constructed at already established mountain bike parks and include jumps, large drops, quarter-pipes, and other wooden obstacles. There are always multiple lines through a course and riders compete for judges' points by choosing lines that highlight their particular skills. A "typical" freeride bike
1827-432: Is becoming more rare as 4X takes on its own identity. Freeride / Big Hit / Hucking, as the name suggests, is a 'do anything' discipline that encompasses everything from downhill racing without the clock to jumping, riding 'North Shore' style (elevated trails made of interconnecting bridges and logs), and generally riding trails and/or stunts that require more skill and aggressive techniques than XC. "Slopestyle" type riding
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#17328553536141914-1029: Is close to nonexistent; thus, most of its residents work in the nearby cities of Darmstadt , Frankfurt or Heidelberg . The local football team is called Spielvereiningung Seeheim Jugenheim. Mountain biking Mountain biking ( abbr. MTB ) is a sport of riding bicycles off-road, often over rough terrain, usually using specially designed mountain bikes . Mountain bikes share similarities with other bikes but incorporate features designed to enhance durability and performance in rough terrain, such as air or coil-sprung shocks used as suspension, larger and wider wheels and tires, stronger frame materials, and mechanically or hydraulically actuated disc brakes . Mountain biking can generally be broken down into distinct categories: cross country , trail , all mountain, enduro , downhill and freeride . The sport requires endurance, core and back strength, balance, bike handling skills, and self-reliance. Advanced riders pursue both steep technical descents and high-incline climbs. In
2001-954: Is considered in the California Floristic Province , a zone of extremely high biodiversity and endemism . There are numerous ecosystems present, including Coastal Strand , oak woodland , mixed evergreen forest , and Coast Redwood Forests chaparral and riparian zones . There are also a considerable number of protected plant and animal species present: Fauna include the California red-legged frog ( Rana draytonii ) and California freshwater shrimp while flora include Marin Dwarf Flax, Hesperolinon congestum ; Tiburon Jewelflower, Streptanthus niger ; and Tiburon Indian paintbrush, Castilleja neglecta . A number of watersheds exist in Marin County, including Walker Creek , Lagunitas Creek , Miller Creek , and Novato Creek . Notably,
2088-416: Is hard to define, but typical specifications are 13–18 kilos (30–40 lbs) with 150–250 millimeters (5.9–9.8 inches) of suspension front and rear. Freeride bikes are generally heavier and more amply suspended than their XC counterparts, but usually, retain much of their climbing ability. It is up to the rider to build his or her bike to lean more toward a preferred level of aggressiveness. Dirt Jumping (DJ)
2175-666: Is in California's 2nd congressional district , represented by Democrat Jared Huffman . From 2008 to 2012, Huffman represented Marin County in the California State Assembly . In the California State Legislature , Marin County is in: For most of the 20th century, Marin County was a Republican stronghold in presidential elections. From 1880 until 1984, the only Democrats to win there were Woodrow Wilson , Franklin Roosevelt and Lyndon Johnson . However,
2262-640: Is located in the county. Thousands of years ago, Coast Miwok people first populated the area today known as Marin County. In 1770, Coast Miwok population ranged from 1,500 to 2,000, with about 600 village sites throughout the county. In 1967, the Marin Museum of the American Indian was established, with exhibits focusing on Coast Miwok artifacts, crafts, and artwork. As of 2021, Indigenous-led events include healing drumming, dogbane cordage demonstrations, trade feasts, and traditional dancing. During
2349-638: Is normally credited with introducing the first purpose-built mountain bike in 1978. Tom Ritchey then went on to make frames for a company called MountainBikes, a partnership between Gary Fisher , Charlie Kelly and Tom Ritchey . Tom Ritchey, a welder with skills in frame building, also built the original bikes. The company's three partners eventually dissolved their partnership, and the company became Fisher Mountain Bikes, while Tom Ritchey started his own frame shop. The first mountain bikes were basically road bicycle frames (with heavier tubing and different geometry) with
2436-515: Is placed on techniques of effectively overcoming the obstacles, although street-trials (as opposed to competition-oriented trials) is much like Street and DJ, where doing tricks with style is the essence. Trials bikes look almost nothing like mountain bikes. They use either 20″, 24″ or 26″ wheels and have very small, low frames, some types without a saddle. Urban/Street is essentially the same as urban BMX (or Freestyle BMX), in which riders perform tricks by riding on/over man-made objects. The bikes are
2523-450: Is present, and UV rays are known to degrade plastic components. Accordingly, and as a rule of thumb, a bicycle helmet should be replaced every five years, or sooner if it appears damaged. Additionally, if the helmet has been involved in an accident or has otherwise incurred impact-type damage, then it should be replaced promptly, even if it does not appear to be visibly damaged. Cross-Country (XC) generally means riding point-to-point or in
2610-540: Is simply an abbreviation of this name. Francis Drake and the crew of the Golden Hind was thought to have landed on the Marin coast in 1579 claiming the land as Nova Albion . A bronze plaque inscribed with Drake's claim to the new lands, fitting the description in Drake's own account, was discovered in 1933. This so-called Drake's Plate of Brass was revealed as a hoax in 2003. In 1595, Sebastian Cermeno lost his ship,
2697-438: Is the practice of riding bikes over shaped mounds of dirt or soil and becoming airborne. The goal is that after riding over the 'lip' the rider will become airborne, and aim to land on the 'knuckle'. Dirt jumping can be done on almost any bicycle, but the bikes chosen are generally smaller and more maneuverable hardtails so that tricks such as backflips, whips, and tabletops, are easier to complete. The bikes are simpler so that when
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2784-400: The 2020 presidential election . Marin has voted for many gubernatorial candidates who went on to become high-profile national figures, including Richard Nixon , Ronald Reagan , Jerry Brown , and Dianne Feinstein . On November 4, 2008, the citizens of Marin County voted strongly against Proposition 8 , a constitutional amendment which eliminated the right of same-sex couples to marry, by
2871-559: The Golden Gate on December 27: "...we came to anchor near the mouth of the bay, under a high and beautifully sloping hill, upon which herds of hundreds and hundreds of red deer [note: "red deer" is the European term for "elk"], and the stag, with his high branching antlers, were bounding about...," although it is not clear whether this was the Marin side or the San Francisco side. The 2010 United States Census reported that Marin County had
2958-533: The Institute for Health Metrics and Evaluation , a female in Marin County could expect to live 85.0 years, the longest for any county in the United States. The national average is 80.8 years for a female. According to the 2010 United States Census , the racial composition of Marin County was as follows: According to the 2006–2008 American Community Survey (ACS), 81.3% of Marin County's residents were born in
3045-611: The Mexican-American war , areas of Marin County were seized by Americans as part of the conquest of California (1846–1847). Marin County is one of the original 27 counties of California, created February 18, 1850, following adoption of the California Constitution of 1849 and just months before the state was admitted to the Union. According to General Mariano Vallejo , who headed an 1850 committee to name California's counties,
3132-702: The Muir Woods redwood forest, the Marin Headlands , Stinson Beach , the Point Reyes National Seashore , and Mount Tamalpais . Marin is one of the highest-income counties by per capita income and median household income. The county is governed by the Marin County Board of Supervisors . The Marin County Civic Center was designed by Frank Lloyd Wright and draws thousands of visitors
3219-582: The San Agustin , while exploring the Marin Coast. The Spanish explorer Vizcaíno landed about twenty years after Drake in what is now called Drakes Bay . However the first Spanish settlement in Marin was not established until 1817 when Mission San Rafael Arcángel was founded partly in response to the Russian-built Fort Ross to the north in what is now Sonoma County . Mission San Rafael Arcángel
3306-573: The Summer Olympic Games . Trail bikes typically have front suspension travel of 120-130mm. Mostly used for recreation not formal competitions. All-mountain bikes typically have front suspension travel of 140-150mm. They are less focused on speed and stability when riding down hills than enduro bikes, thereby increasing efficiency when riding up hills. Enduro bikes tend to have moderate-travel suspension systems and components which are stronger than XC models, typically 160–180 mm of travel on
3393-564: The U.S. Census Bureau , the county has a total area of 828 square miles (2,140 km ), of which 520 square miles (1,300 km ) is land and 308 square miles (800 km ), comprising 37.2%, is water. It is the fourth-smallest county in California by land area. According to the records at the County Assessor-Recorder's Office , as of June 2006, Marin had 91,065 acres (369 km ) of taxable land, consisting of 79,086 parcels with
3480-461: The 1940s, with the first world championship taking place in 1950. The Rough Stuff Fellowship was established in 1955 by off-road cyclists in the United Kingdom. In Oregon in 1966, one Chemeketan club member, D. Gwynn, built a rough terrain trail bicycle. He named it a "mountain bicycle" for its intended place of use. This may be the first use of that name. In England in 1968, Geoff Apps ,
3567-545: The 1980s. Fifty percent of historical salmon habitat is now behind dams. Strong efforts are also being made to protect and restore undammed, headwater reaches of this Watershed in the San Geronimo Valley , where upwards of 40% of the Lagunitas salmon spawn each year and where as much as 1/3 of the juvenile salmon (or fry) spend their entire freshwater lives. The "Salmon Protection and Watershed Network" leads winter tours for
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3654-619: The 19th century. The California State Legislature had been discussing legislation for forest-fire suppression as early as 1881, but the formal department did not come into being until approximately 1901. The Marin County Fire Department came into existence in its current incarnation on July 1, 1941, with passage of an ordinance and two resolutions by the Board of Supervisors. In the United States House of Representatives , Marin County
3741-403: The 2006–2008 ACS, English was the most commonly spoken language at home by residents over five years of age; those who spoke only English at home made up 77.1% of Marin County's residents. Speakers of non-English languages accounted for the remaining 22.9% of the population. Speakers of Spanish made up 11.7% of the county's residents, while speakers of other Indo-European languages made up 7.1% of
3828-664: The Cleland design were also sold by English Cycles and Highpath Engineering until the early 1990s. There were several groups of riders in different areas of the U.S.A. who can make valid claims to playing a part in the birth of the sport. Riders in Marin County, California and Crested Butte, Colorado , tinkered with bikes and adapted them to the rigors of off-road riding. Modified heavy cruiser bicycles , old 1930s and '40s Schwinn bicycles retrofitted with better brakes and fat tires, were used for freewheeling down mountain trails in Marin in
3915-535: The Fargo model. Mixed Terrain Cycle-Touring or rough riding is a form of mountain-bike touring but involves cycling over a variety of surfaces and topography on a single route, with a single bicycle that is expected to be satisfactory for all segments. The recent surge in popularity of mixed-terrain touring is in part a reaction against the increasing specialization of the bicycle industry. Mixed-terrain bicycle travel has
4002-585: The Lagunitas Creek Watershed is home to the largest remaining wild run of coho salmon ( Oncorhynchus kisutch ) in Central California. These coho are part of the "Central California Coast Evolutionarily Significant Unit, " or CCC ESU, and are listed as "endangered" at both the state and federal level. Significant efforts to protect and restore these fish have been underway in the Watershed since
4089-566: The United States. Approximately 80.0% of the county's residents were born in one of the fifty states or born abroad to American parents. Foreign-born individuals made up the remaining 18.7% of the population. Latin America was the most common birthplace of foreign-born residents; those born in Latin America made up the plurality (42.2%) of Marin County's foreign population. Individuals born in Europe were
4176-625: The brand of Republicanism prevailing in Marin County was historically a moderate one. Like most of the historically Republican suburbs of the Bay Area, it became friendlier to Democrats as the demographics of the area changed and the national party embraced social and religious conservatism. In 1984, it very narrowly voted for Walter Mondale and has supported the Democratic candidate in every presidential election since then. Out of all California counties , only San Francisco County voted more Democratic in
4263-462: The case of freeride, downhill, and dirt jumping, aerial maneuvers are performed off both natural features and specially constructed jumps and ramps. Mountain bikers ride on off-road trails such as singletrack , back-country roads, wider bike park trails, fire roads , and some advanced trails are designed with jumps, berms, and drop-offs to add excitement to the trail. Riders with enduro and downhill bikes will often visit ski resorts that stay open in
4350-603: The county was named for "Marin," great chief of the tribe Licatiut." Marin had been named "Huicmuse" until he was baptized as "Marino" at about age 20. Marin / Marino was born into the Huimen people, a Coast Miwok tribe of Native Americans who inhabited the San Rafael area. Vallejo believed that "Chief Marin" had waged several fierce battles against the Spanish. Marino definitely did reside at Mission Dolores (in modern San Francisco) much of
4437-635: The county's population resides on the eastern side, with a string of communities running along U.S. Route 101 and the San Francisco Bay, from Sausalito to Tiburon to Corte Madera to San Rafael and Novato . The interior contains large areas of agricultural and open space; West Marin , through which State Route 1 runs alongside the California coast, contains many small unincorporated communities whose economies depend on agriculture and tourism. West Marin has beaches which are popular destinations for surfers and tourists year-round. Notable features of
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#17328553536144524-399: The county. The population density was 476 inhabitants per square mile (184/km ). There were 104,990 housing units at an average density of 202 units per square mile (78 units/km ). The racial makeup of the county was 84.0% White , 2.9% Black or African American , 0.4% Native American, 4.5% Asian , 0.2% Pacific Islander , 4.5% from other races, and 3.5% from two or more races. 11.1% of
4611-604: The downhill portions are ranked by fastest times. Historically, many long-distance XC races would use the descriptor "enduro" in their race names to indicate their endurance aspect. Some long-standing race events have maintained this custom, sometimes leading to confusion with the modern Enduro format, that has been adopted to the Enduro World Series. Enduro racing was commonly seen as a race for all abilities. While there are many recreational riders that do compete in Enduro races,
4698-444: The extra bulk and weight may help mitigate the risks of bigger and more frequent crashes. Protective gear cannot provide immunity against injuries. For example, concussions can still occur despite the use of helmets, and spinal injuries can still occur with the use of spinal padding and neck braces. The use of high-tech protective gear can result in a revenge effect, whereupon some cyclists feel safe taking dangerous risks. Because
4785-595: The first regularly available mountain bike frame, which was accessorized by Gary Fisher and Charlie Kelly and sold by their company called MountainBikes (later changed to Fisher Mountain Bikes, then bought by Trek , still under the name Gary Fisher, currently sold as Trek's "Gary Fisher Collection"). The first two mass-produced mountain bikes were sold in the early 1980s: the Specialized Stumpjumper and Univega Alpina Pro. In 1988, The Great Mountain Biking Video
4872-738: The form of single routes or part of a larger complex, known as trail centers. Trail difficulty typically varies from gentle 'family' trails (green) through routes with increasingly technical features (blue and red) to those requiring high levels of fitness and skill (black) incorporating demanding ascents with steep technical descents comparable to less extreme downhill routes. As difficulty increases trails incorporate more technical trail features such as berms, rock gardens, uneven surfaces, drop offs and jumps. The most basic of bike designs can be used for less severe trails, but there are "trail bike" designs which balance climbing ability with good downhill performance, almost always having 120–150 mm of travel on
4959-540: The frame tubes instead of fillet-brazing, a process better suited to mass production, and which helped to reduce labor and manufacturing cost. The bikes were configured with 15 gears using derailleurs , a triple chainring , and a cogset with five sprockets. Throughout the 1990s and first decade of the 21st century, mountain biking moved from a little-known sport to a mainstream activity. Mountain bikes and mountain bike gear, once only available at specialty shops or via mail order, became available at standard bike stores. By
5046-406: The front than on the rear, such as on a motorcycle, to increase maneuverability. This is called a mullet bicycle, most common with a 29-inch wheel in the front and a 27.5-inch wheel in the back. Another interesting trend in mountain bikes is outfitting dirt jump or urban bikes with rigid forks. These bikes normally use 4–5″ travel suspension forks. The resulting product is used for the same purposes as
5133-431: The gap between cross-country bikes and those built specifically for downhill riding. They are characterized by 4–6 inches (100–150 millimetres) of fork travel. 29er bikes are those using 700c sized rims (as do most road bikes), but wider and suited for tires of two inches (50 mm) width or more; the increased diameter wheel is able to roll over obstacles better and offers a greater tire contact patch , but also results in
5220-417: The initial exposure of the sport to a Nation-wide audience through TV media's Evening Magazine . The fire road unofficially named "Repack" still exists and is rideable. The sport originated in California on Marin County 's Mount Tamalpais . It was not until the late 1970s and early 1980s that road bicycle companies started to manufacture mountain bicycles using high-tech lightweight materials. Joe Breeze
5307-467: The key determinant of injury risk is kinetic energy , and because kinetic energy increases with the square of the speed, effectively each doubling of speed can quadruple the injury risk. Similarly, each tripling of speed can be expected to bring a nine-fold increase in risk, and each quadrupling of speed means that a sixteen-fold risk increase must be anticipated. Higher speeds of travel also add danger due to reaction time . Because higher speeds mean that
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#17328553536145394-475: The late 1960s to-late 1970s. At the time, the bikes were comparatively primitive with single-speed coaster brakes. The earliest ancestors of modern mountain bikes were based around frames made by Schwinn , Colson and others. The Schwinn Excelsior was the frame of choice due to its geometry. These early bikes were eventually modified with multi-speed gearing, drum or rim brakes, and motocross or BMX-style handlebars, creating "klunkers". The term would also be used as
5481-570: The male death row and the execution chamber of California . The Marin County Sheriff's Office serves as the county's main law enforcement agency. The Central Marin Police Authority is responsible for law enforcement in Larkspur , Corte Madera , and San Anselmo . The first formal fire department in what is now Marin County was The Tamalpais Forestry Association, formed around the turn of
5568-537: The median income for a family was $ 88,934. As of 2007, these figures had risen to $ 83,732 and $ 104,750. In May 2010, the county had the lowest unemployment rate in California . According to the U.S. Bureau of Labor Statistics, however, in July 2010, Marin's unemployment rate rose to 8.3%. San Quentin State Prison of the California Department of Corrections and Rehabilitation is in the county. San Quentin houses
5655-514: The mid-first decade of the 21st century, even some department stores began selling inexpensive mountain bikes with full-suspension and disc brakes. In the first decade of the 21st century, trends in mountain bikes included the "all-mountain bike", the 29er and the one by drivetrain (though the first mass-produced 1x drivetrain was Sram's XX1 in 2012). "All-mountain bikes" were designed to descend and handle well in rough conditions, while still pedaling efficiently for climbing, and were intended to bridge
5742-506: The migration from their spawning grounds in the Lagunitas Creek area to the Pacific Ocean. This increase in migration was significantly up from the previous historic record for the same migration measured in 2006 at 11,000. In 2010, all of the county's beaches were listed as the cleanest in the state. When Richard Henry Dana Jr. visited San Francisco Bay in 1835, he wrote about vast tule elk ( Cervus canadensis nannodes ) herds near
5829-537: The most expensive professional downhill mountain bikes can weigh as little as 15 kilograms (33 pounds), fully equipped with custom carbon fibre parts, air suspension, tubeless tires and more. Downhill frames have anywhere from 170–250 millimeters (6.7–9.8 inches) of travel and are usually equipped with a 200 millimeters (7.9 inches) travel dual-crown fork. Four-cross/Dual Slalom (4X) is a discipline in which riders compete either on separate tracks, as in Dual Slalom, or on
5916-637: The original bike. A commonly cited reason for making the change to a rigid fork is the enhancement of the rider's ability to transmit force to the ground, which is important for performing tricks. In the mid-first decade of the 21st century, an increasing number of mountain bike-oriented resorts opened. Often, they are similar to or in the same complex as a ski resort or they retrofit the concrete steps and platforms of an abandoned factory as an obstacle course, as with Ray's MTB Indoor Park . Mountain bike parks which are operated as summer season activities at ski hills usually include chairlifts that are adapted to bikes,
6003-449: The populace. Speakers of Asian languages and indigenous languages of the Pacific islands made up 3.4% of the population. The remaining 0.7% spoke other languages. Source: According to the 2007–2009 ACS, there were 16 ancestries in Marin County that made up over 0.9% of its population each. The 16 ancestries are listed below: The median income for a household in the county was $ 71,306 and
6090-441: The population were Hispanic or Latino of any race. In 2000, there were 100,650 households, out of which 27.5% had children under the age of 18 living with them, 48.4% were married couples living together, 8.5% had a female householder with no husband present, and 39.7% were non-families. 29.8% of all households were made up of individuals, and 9.6% had someone living alone who was 65 years of age or older. The average household size
6177-498: The public to learn about and view these spawning salmon, and also leads year-round opportunities for the public to get involved in stream restoration, monitoring spawning and smolt outmigration, juvenile fish rescue and relocation in the summer, and advocacy and policy development. Around 490 different species of birds have been observed in Marin County. Despite the lack of rain in the Marin County area due to historic drought levels, in 2014, an estimated 20,000 juvenile Coho salmon made
6264-444: The rider travels further during their reaction time, this leaves less travel distance within which to react safely. This, in turn, further multiplies the risk of an injurious crash. In general, although protective gear cannot always prevent the occurrence of injuries, the use of such equipment is appropriate, as is maintaining it in serviceable condition. Because mountain biking takes place outdoors, ultraviolet radiation from sunlight
6351-501: The same as those used for Dirt Jumping, having 24″ or 26″ wheels. Also, they are very light, many in the range of 25–30 lb (11–14 kg), and are typically hardtails with between 0–100 millimeters of the front suspension. As with Dirt Jumping and Trials, style and execution are emphasized. Trail riding or trail biking is a varied and popular non-competitive form of mountain biking on recognized, and often waymarked and graded, trails ; unpaved tracks, forest paths, etc. Trails may take
6438-453: The second largest foreign-born group; they made up 25.3% of Marin County's foreign population. Immigrants from Asia made up 23.7% of the county's foreign population. Those born in other parts of North America and Africa made up 3.9% and 3.8% of the foreign-born populace respectively. Lastly, residents born in Oceania made up a mere 1.2% of Marin County's foreign population. Source: According to
6525-947: The shoreline along the San Francisco Bay include the Sausalito shoreline, Richardson Bay , the Tiburon Peninsula , Ring Mountain , and Triangle Marsh at Corte Madera . Further north lies San Quentin State Prison along the San Rafael shoreline. The Marin County Department of Parks and Open Space manages numerous county parks and open spaces, including Stafford Lake County Park . The Marin Municipal Water District has 130 mi (209 km) of trails. Like underwater parks, these marine protected areas help conserve ocean wildlife and marine ecosystems: Marin County
6612-605: The significance of an all-terrain bicycle and the coming boom in 'adventure sports'. Instead, the first mass-produced mountain bikes were pioneered by new companies such as MountainBikes (later, Fisher Mountain Bikes), Ritchey, and Specialized . Specialized was an American startup company that arranged for production of mountain bike frames from factories in Japan and Taiwan. First marketed in 1981, Specialized's mountain bike largely followed Tom Ritchey's frame geometry, but used TiG welding to join
6699-458: The skill of map navigation to mountain biking. One of the first examples of bicycles modified specifically for off-road use is the expedition of Buffalo Soldiers from Missoula, Montana , to Yellowstone in August 1896. Bicycles were ridden off-road by road racing cyclists who used cyclocross as a means of keeping fit during the winter. Cyclo-cross eventually became a sport in its own right in
6786-422: The sport is increasingly attracting high-level riders such as Sam Hill or Isabeau Courdurier . Downhill (DH) is, in the most general sense, riding mountain bikes downhill. Downhill tracks normally include large jumps, drops or other features, and are generally rough and steep from top to bottom. Often, facilities such as an automobile up-lift or ski lift , will be available to transport riders and their bikes to
6873-672: The start-point, as the weight of downhill mountain bikes precludes any serious climbing. Because of the extremely steep terrain, downhill mountain biking is one of the most extreme and dangerous cycling disciplines. Minimum body protection for downhill riding include gloves, knee pads and a full-face helmet, although many riders and racers commonly wear more extensive, full-body, protection that include padding at selected locations. Downhill-specific bikes are universally equipped with front and rear suspension, large disc brakes, and use heavier frame tubing than other mountain bikes. Downhill bicycles now weigh around 16–20 kg (35–44 lb), while
6960-491: The summer to ride downhill-specific trails, using the ski lifts to return to the top with their bikes. Because riders are often far from civilization, there is a strong element of self-reliance in the sport. Riders learn to repair broken bikes and flat tires to avoid being stranded. Many riders carry a backpack, including water, food, tools for trailside repairs, and a first aid kit in case of injury. Group rides are common, especially on longer treks. Mountain bike orienteering adds
7047-526: The time from his 1801 baptism and marriage until 1817, frequently serving as a baptism witness and godfather; he may have escaped and been recaptured at some point during that time. Starting in 1817, he served as an alcalde (in effect, an overseer) at the San Rafael Mission, where he lived from 1817 off and on until his death. In 1821, Marino served as an expedition guide for the Spanish for a couple of years before escaping and hiding out for some months in
7134-741: The tiny Marin Islands (also named after him); his recapture resulted in a yearlong incarceration at the Presidio before his return to the Mission San Rafael area for about 15 years until his death in 1839. In 2009, a plaque commemorating Chief Marin was placed in Mill Valley. Another version of the origin of the county name is that the bay between San Pedro Point and San Quentin Point was named Bahía de Nuestra Señora del Rosario la Marinera in 1775, and that Marin
7221-401: The weather, and numerous other factors, including personal choice. Protection becomes more important where these factors may be considered to increase the possibility or severity of a crash. A helmet and gloves are usually regarded as sufficient for the majority of non-technical riding. Full-face helmets, goggles and armored suits or jackets are frequently used in downhill mountain biking, where
7308-432: Was 2.34 and the average family size was 2.90. In the county, 20.3% of the population was under the age of 18, 5.5% from 18 to 24, 31.0% from 25 to 44, 29.7% from 45 to 64, and 13.5% was 65 years of age or older. The median age was 41 years. For every 100 females there were 98.2 males. For every 100 females age 18 and over, there were 96.4 males. According to the most recent data on U.S. life expectancy, published in 2010 by
7395-529: Was founded in what is now downtown San Rafael as the 20th Spanish mission in the colonial Mexican province of Alta California by four priests, Father Narciso Duran from Mission San Jose , Father Abella from Mission San Francisco de Asís , Father Gil y Taboada and Father Mariano Payeras , the President of the Missions, on December 14, 1817, four years before Mexico gained independence from Spain. According to
7482-540: Was released, soon followed by others. In 2007, Klunkerz: A Film About Mountain Bikes was released, documenting mountain bike history during the formative period in Northern California. Additionally, a group of mountain bikers called the Laguna Rads formed a club during the mid eighties and began a weekly ride, exploring the uncharted coastal hillsides of Laguna Beach, California. Industry insiders suggest that this
7569-434: Was the birth of the freeride movement, as they were cycling up and down hills and mountains where no cycling specific trail network prexisted. The Laguna Rads have also held the longest running downhill race once a year since 1986. At the time, the bicycle industry was not impressed with the mountain bike, regarding mountain biking to be short-term fad. In particular, large manufacturers such as Schwinn and Fuji failed to see
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