Downhill mountain biking (DH) is a style of mountain biking practiced on steep, rough terrain that often features jumps, drops, rock gardens and other obstacles. Jumps can be up to and including 12 meters (39 feet), and drops can be greater than 3 meters (10 feet).
The rider commonly travels to the point of descent a ski lift or automobile, since the weight of the downhill mountain bike often precludes any serious climbing. In this context, the use of a motorized vehicle or device does not make DH a motorized sport.
Riders must possess a unique combination of total body strength, aerobic and anaerobic fitness, and the acceptance of a relatively high risk of incurring serious permanent injuries.
Downhill bikes are heavier and stronger than other mountain bikes and feature front and rear suspension with over 8 inches (20 cm) of travel, to glide quickly over rocks and tree roots. In competitive races, a continuous course is defined on each side by a strip of tape. Depending on the format, riders have a single or double attempt to reach the finish line as fast as possible, while remaining between the two tapes designating the course. Riders must choose their line by compromising between the shortest possible line and the line that can be traveled at the highest speed. If a rider leaves the course by crossing or breaking the tape they must return to the course at the point of exit, unless they do not gain a time advantage from crossing the tape, in which case they can continue with their run.
Riders start at intervals, often seeded from slowest to fastest, and courses typically take two to five minutes to complete with winning margins being often less than a second. Riders are timed with equipment similar to that used in downhill skiing.
The 1st downhill time-trial race took place in Fairfax, California on October 21, 1976 on a fireroad now referred to as Repack Road, due to the need to repack the hub brake after each descent. The bikes used were based on cruiser bicycles that had a drum or coaster brake that worked by pedalling backward. The mechanism operated with a conical brake shoe being wound on a thread in a metal hub. To prevent the brake from seizing it was kept filled with grease. Heavy use during the descent would cause the brake to over heat, softening the grease and causing it to drain from the hub, requiring frequent repacking. Ten riders descended 1,300 feet (400 m) of Repack road in about 5 minutes.
The first bikes used for descending were known as "klunkers" or "paperboy bikes" - sturdy cruisers using balloon tires and coaster brakes, designed by Ignatz Schwinn during the Great Depression. The bikes could endure abuse that would damage other bicycles by changing features from the Henderson and Excelsior motorcycles his company had built during the 1920s, including a heavy "cantilevered" frame with two top tubes and 2.125-inch-wide (54.0 mm) "balloon" tires from Germany. Innovations like the fat-tire Schwinn with derailleur gears by Russ Mahon of The Morrow Dirt Club in Cupertino at the 1974 Marin County cyclo-cross and Gary Fisher's 1975 use of a tandem rear hub (from a flea market) with a drum brake threaded for a freewheel cluster developed the sport, and by 1979, two organizers and competitors of the Repack downhill, Charlie Kelly and Gary Fisher founded the company which named the sport, MountainBikes. As mountain biking grew during the 80s, downhill riders continued to use either rigid or limited-travel (under 2 inches (5 cm)) suspension bicycles. Purpose-made downhill bikes started to appear in the 90s, with innovations such as dual crown forks and disc brakes, as well as more elaborate suspension designs.
Later, riders from other disciplines began focusing on downhill, such as BMX racers Daniel Solano (Team Tomac Bikes), and Brian Lopes. Their influence is seen in the increased difficulty of many courses, with bigger jumps and drops added. The coming of age for downhill biking was its inclusion at the first UCI Mountain Bike Championship, held in 1990 in Durango, Colorado.
Many ski areas are converted into downhill mountain biking venues in the summer, such as Whistler Mountain Bike Park and Fernie Alpine Resort, alongside the specifically developed all-season downhill trails. At some courses, bikers ride gondolas, trams or chair lifts to the starting point, or "shuttling" with motorized vehicles is used to transport riders to the top of the hill. Others are accessible by riding (or pushing) bicycles to the starting point. Urban downhill courses have also appeared in mountain-side cities, with the courses going through city streets and sidewalks, such as the Taxco Downhill event in Mexico.
Courses used in competition often feature several "lines" through or around difficult obstacles. For example, the "A line" might be a direct line over a large jump with a sketchy landing, the "B line" a smaller jump with a better landing, and the "C line" completely avoids the jumps, but may take longer.
Australia has produced a large number of internationally successful downhill racers, including Sam Hill, Chris Kovarik, Nathan Rennie and Mick Hannah. The large majority of Australian downhill riding and racing is accessed by shuttling in cars, buses or by walking to the top of the track (push runs), however the venues at Mount Buller and Thredbo provide lift accessed tracks during the snow less summer months.
Mount Stromlo, near Canberra, hosted a World Cup Round in August 2008 and the 2009 World Championships. The top can be accessed by either riding up singletrack, or by shuttling via the road. Australia's first UCI Mountain Bike World Cup was held in Cairns in 1994-1995. followed by the World Mountain Bike Championships in 1996 and again in 2017, placing Cairns on the map as the premier Australian mountain bike destination.
Located in the Alps, Austria is very suitable for downhill riding. A large majority of Austria's downhill tracks are accessible via lift shuttles. A World Cup track called the "Planai" is located in the city of Schladming. It is about 5 km long and with an average descent grade of about 35% it has become a legendary World Cup race track known for its technical and steep sections.
Since 2010 Austria's biggest bike park in Leogang has taken over hosting the annual UCI World Cup DH races. It has also been host zu multiple Downhill World Championship events. The race track is called "Flying Gangster" and most of it is open to ride for amateurs visiting the bike park. It's known for it's high speeds and an extremely difficult final section called "Vali's Hell" (named after multi-time World Cup winner and World Champion racer Valentina Höll). 
Most of Bolivia's downhill riding is done in the Andes Mountains in and around La Paz. In the city there is the Pura Pura trail, there are also a few trails through the forest. Camiraya at the outskirts of La Paz has more and longer trails. The Loma Loma and Chu Chu trails are a little further out in Sorata. There are also trails in other parts of the country, for example in Cochabamba and Potosí.
Bosnia and Herzegovina is rich with mountains especially around the capital city of Sarajevo, in which a downtown race is held, although mountain bike and downhill especially are still developing to become known sports. Mountains like Igman, Bjelašnica and others are being increasingly used for downhill racing. Currently there are a few tracks on Trebević, Igman, Bjelašnica, Cavljak - Barice, all featured tournaments on an international level. Unexploded ordnance is one of the reasons for slow development of this sport in a country with a such great potential for it.
Canada is famous for its downhill racing as well as other sorts of mountain biking. The Whistler Mountain Bike Park in Whistler, British Columbia hosts the annual Crankworx and Joyride Huckfest racing events. The province of British Columbia is also home to several other large lift-serviced mountain bike parks, including Sun Peaks in Kamloops, BC, Silver Star Mountain Resort in Vernon, BC, Kicking Horse Mountain Resort in Golden, BC and Fernie Alpine Resort. The North Shore Mountains of North Vancouver, BC, are a famous downhill biking destination in their own right. The popular style of technical downhill freeriding that involves many man-made trail elements originated here. The style is often referred to as "North Shore Style." Canada has produced many world-class mountain bike racers, including downhillers Andrew Shandro and Steve Smith. The mount of Bromont, situated in Bromont, Quebec, and Mont-Sainte-Anne near Quebec City are great places for downhill biking.
Downhill MTB races have been held in Croatia since 1993, when the first competition was organized outside Zagreb, on the same mountain that today hosts the world cup races in alpine skiing. Until the past 4–5 years, Mountain biking was banished from popular hiking trails and ski slopes around the capital. However, with the rise in popularity of DH and enduro, (gravity) riding, Trail management regulations have been relaxed and along with allowing riders, have begun to allow for the development of MTB-specific trails, cooperating with the local riding community to communicate which trails are acceptable and which are not. Additionally, the area known as 'Grma' has seen the growth and development of DH-specific trails. MTB DH riding has also flourished in other parts of Croatia, especially in the northern Adriatic coastal region and in the northern (continental) part of the country. In 2010 the national DH Cup events were held in Buzet (Istria), Samobor (Zagreb area), Pakrac (Slavonia), and Gracisce (Pazin, Istria). Additionally, multiple enduro races around the country are now part of an annual 'Cro-enduro series and the fall of 2017 saw the organization of the first-ever Croatian Enduro National Championships. Urban downhill events are also held in the coastal city of Rijeka. 2018 saw the first UCI Mountain Bike World Cup held in Croatia, on the island of Lošinj.
The French Alps are home to many downhill routes and events. The most famous one is the Megavalanche downhill race, the event in the Alp d'Huez and Bourg d'Oisans regions. Another downhill course in the region is Les Deux Alpes which sometimes hosts other downhill events. The downhill courses and events are limited in the area, however, because of the alpine winter and snow. The most popular region for downhill in the French alps is the Portes du Soleil, including the two more popular resorts of Morzine and Les Gets. Most recently, a world cup was held for the first time in La Bresse. In August 2011, La Bresse hosted the sixth round of the UCI World Cup. Since 2015, Lourdes has hosted a World Cup round each year.
The first downhill trails in Georgia were developed in 2015. Among the first built was in Gudauri, followed by trails in Bakuriani. Both of the places are also ski resorts. Trails are at 2000–2250 meters, with trail lengths of about 5000 meters.
In Germany the landscape is quite diverse, reaching from flatlands in the north to medium-sized mountains in the center to the alpine mountains in the south. Downhill tracks in Germany are not as steep as in Switzerland, Austria, or Canada and the difference from top to bottom is less, but the main parts of an average track are everywhere in Germany. Racing on these short tracks is highly intense and allows no mistakes. Due to the country's large population, the sport has developed quickly in Germany. The number of riders can go up to 600 at races. With 3 cup races, Thuringia, in the middle of Germany, is the center of gravity riding. The most popular race series is the 'iXS German Downhill Cup'. In Germany is Europe's biggest Mountainbike Freeride Festival held, called iXS Dirt Masters. It includes one iXS German Downhill Cup Round, a 4X Race, and a slopestyle contest. It is visited by around 25000 spectators and 1200 riders. In the small town of Wiof Willingen is a former World Cup Downhill and Four Cross Race Course. The World Cup has been held there in 2005 and 2006. With Germany being a high-level industry country, there are many firms are producing downhill bikes, such as Last Bikes, Zonenschein, Fusion Bikes, Cube Bikes, Ghost Bikes, Canyon Bikes, Propain Bikes, Rose Bikes, Solid Bikes as well as boutique bike manufacturers Nicolai and Liteville. There are also a lot of firms producing high-end parts like Rohloff, Magura, or Tune.
Downhill Mountain Biking in India is fairly new. The main and the most popular downhill mountain bike race in India is called the Himalayan Downhill Mountain Bike Trophy which is organized by Himalayan Mountain Bike Network during the Himalayan Mountain Bike Festival. This race is conducted at Ski Himalayas Ropeway and Ski Resort located in Solang Valley near Manali which is the Mountain Biking Capital of India. The DH race track is 2 km, long and the area offers a lot of natural mountain biking trails and lends itself to many styles of mountain biking. The paths in this Himalayan region are accessible to riders of all skill levels.
Downhill cycling has increased in Ireland over the past 10 years, for example, the National Points Series rounds regularly attract over 250 riders from all over the country. Irish tracks vary greatly in length and difficulty. Moneyscalp is one of the shorter tracks with times for Elites coming at just over a minute. Other tracks such as Carrick in Co.Wicklow are closer to 5 minutes. There are no official downhill tracks in the Republic of Ireland. Just across the border in Rostrevor, Northern Ireland however, Newry & Mourne District Council has recently built some tracks in Kilbroney Forest which includes a 27 km and 17 km single track and 2 purpose-built downhill trails.
According to the law, it is illegal to ride in the forests. All the tracks are built and maintained voluntarily by individuals and mountain biking clubs who take it upon themselves to do so. As downhill mountain biking has become more popular so has the call for more facilities and practitioners of this sport have begun campaigning with the state on this issue.
Bardonecchia, one of the Torino 2006 winter Olympic venues, converts some of its ski courses and lifts for use by mountain bikers in the summer, and several downhill courses are present. Other ski resorts turning to mountain bike parks in summer are Canazei, Pila, Sestola, and Livigno. The area of Finale Ligure, near Genoa, offers year-round tracks that end on the seaside, served by shuttles. Among the most famous trails in the country is the Sanremo Downhill, a rocky, technical, and dangerous course won in 2007 by Fabien Barel. The 2008 World Championship happened in Val di Sole.
Located in the Tian Shan, the city of Almaty, Shymbulak bike park was opened in 2013. There are also the Charyn canyons and mini Red Bull Rampage trail. The cheap living costs, warm climate, and fresh mountain air make Almaty a "must-visit" place for riders on a budget.
In the global context, there are very few notable downhill venues in Latvia. Most of them are located at local ski resorts in Baldone, Sigulda, and Cēsis. Also, there's a trail network in the forests of Tukums near Melnezers. All the tracks are built and maintained voluntarily by individuals who take it upon themselves to do so. Each year Latvian Downhill association regularly schedules the National downhill cup and championships. In the next several years, it is expected to grow a local community around downhill mountain biking by increasing the number of riders and improving local ski resort trail quality.
Hafjell, a ski resort in the county of Oppland and host of the alpine skiing events (giant slalom and slalom) at the 1994 Winter Olympics, offers a vast combination of courses and tracks for cross-country and downhill mountain bikers during summer. Hafjell hosted the 2010 European downhill championships and the 2010 Nordic downhill championships.
The Philippines is known for its mountainous range and rocky hills. In Rizal, there are famous downhill tracks, such as the Patiis Downhill Tracks in San Mateo. Other downhill tracks around the country hold annual downhill races. Former downhill tracks include the famous and now-defunct Antenna Downhill Tracks in Binangonan, Rizal, which were closed and dismantled alongside the enduro tracks of the exact location due to the development of the private property. Some notable Downhill athletes in the Philippines are Parabanne Mendoza, Lea Dennis Belgira, Fredrick Farr, Jerich Farr, Eleazar Barba Jr., and Niño Martin Eday. The Downhill Riders Organization of the Philippines (DROP) organizes some downhill races around the country.
Portugal is the host country of a unique variety of downhill races, the Urban Downhill, known as Downtown. Lisbon DownTown is a famous annual event that brings world-class Downhill athletes to Portugal. Steve Peat is the King of the race, winning against 8 of the 11 editions. The Gouveia International Downhill is another important annual race that normally brings some of the WorldCup racers to the country. Places like Lousã, Tarouca, and Sintra offer a large mixture of single tracks and Downhill circuits.
Some of the notable Russian downhill venues are ski-comp, the ski complex "Metallurg" (Bannoe lake, Magnitogorsk), Mashuk, and Chaget mountains. And in the city of Novosibirsk has a trail for such races. It is located in the CHP-5.
Slovenia's vast hilly landscape and undamaged nature make very good conditions for downhill cycling, thus one of the world's top, not only tracks but riders are also in Slovenia. The famous tracks that are included in the world cup are at a ski resort the ski resort Kranjska Gora in the northwest tip of Slovenia, while the other track is on the ski resort hill Pohorje at Slovenia's second largest city Maribor.
Downhill racing is not currently a very big sport in South Africa but is rapidly growing. South Africa boasts some great tracks and riders, especially from the Western Cape and the Pietermaritzburg area in Kwa-Zulu Natal, the hometown of Greg Minnaar. In the Western Cape, the best tracks are Edeouth and Jonkershoek in Stellenbosch, Playgrounds in Paarl, Sir Lowry's Pass near Somerset-West (hometown of Andrew and Jonty Neethling), Zevenwacht near Kuilsrivier, and Witfontein in George. They provide quite technical, but fun courses. Ferncliff and World's View our great in Pietermaritzburg. Helderkruin (West of Johannesburg), Klapperkop in Pretoria, and Gillooly's Farm in Johannesburg. South Africa held the first round of the 2009 UCI World Cup, which was in Pietermaritzburg (Greg Minnaar's hometown).
With the Caledonian mountains forming the borderland with Norway, this country has places for downhill races. The majority of Sweden's notable downhill tracks are situated around Åre and Åre Bike, accessible via lift shuttles. In 1999 Åre was the host of the UCI Mountain Bike & Trials World Championships, and it hosted the Nordic Championships in 2007. There are numerous graded biking trails down the Åreskutan fell.
Sweden's most southerly DH bike park is called Vallåsen Bike Park. And it is located on the north side of the Halland ridge between Skåne and Halland. Vallåsen opened in 2008, and it attracts riders not only from Sweden but also Denmark due to Its relatively close location to Copenhagen. Vallåsen holds an annual DH race at the end of the season called the Vallåsen DH Challenge.
Jarvsö Bike Park is another downhill park, which is in the locality of Järvsö, in the municipality of Ljusdal approximately, 3 hours north of Stockholm by car. The park consists of 17 tracks of varying difficulty and a pump track.
Located between the Alps and the Jura and surrounded by the downhill nations of France, Germany, Italy, and Austria. It is kind of a center for the European downhill scene. There are tracks in or near every city with high quality and steep descent. It has several World Cup tracks like "Champéry" or "Portes du Soleil. Switzerland is the home of parts manufacturer DT Swiss, EDCO Swiss bicycle components since 1902, frame manufacturer BMC and bike manufacturer Redalp.
Mountainous regions of Northern Thailand offer great venues for downhill mountain biking. Chiang Mai is the most famous location for downhill mountain biking in Thailand. The Chiang Mai Downhill Challenge, which was held in November 2012 and 2013, attracted World Cup riders, such as Steve Peat, Josh Bryceland, Sam Dale, Brook Macdonald, Wyn Masters, and Edward Masters, as well as a Belgian free-rider. Nico Vink. Doi Suthep mountain is where most downhill actions take place in Chiang Mai. Tour operator, such as X-Biking Chiang Mai, offers guided tour or shuttle service to the trailheads and pick up the riders once they complete the trails. The Thailand National Championships, are held in many different venues across Thailand by the Thai Cycling Association. It also attracts many riders across Southeast Asia. The cheap living costs, great foods, warm climate, and great ridings make Thailand a "must-visit" place for riders on a budget.
Within the UK, most of the main downhill tracks are in the Scottish Uplands, Highlands, Wales, and Northern England, as these are more mountainous areas. Fort William in Scotland is Britain's only World Cup standard track and was the venue for the 2007 World Championships. The UK has a powerful race scene with a national series and numerous regional series with a strong representation of all age groups present. The country has produced many of the world's top downhill mountain bikers, including Steve Peat, Gee Atherton, Danny Hart, Josh Bryceland, Brendan Fairclough, Rachel Atherton, Manon Carpenter, and Tahnee Seagrave.
The Sea Otter Classic, held each April at Laguna Seca near Monterey, California, is a major riding event that opens the racing season. In 2008, experienced racer Mark Reynolds died after a crash at the Sea Otter Classic, highlighting the dangers of the sport. Plattekill Mountain in the Catskills, Mammoth Mountain, the Northstar at Tahoe, Brian Head Resort, Attitash and Deer Valley ski resorts, and Moab (Utah) are also well known to mountain bikers. Snowmass, Colorado is also developing as a location for the sport.
Mountain Creek Bike Park in Vernon, New Jersey is a downhill venue that hosts their own series of competitions called the Gravity Series. In the southeastern United States, Snowshoe Mountain is well known for its extensive mountain bike park, camps, and freeriding areas during the summer. Bryce Resort offers a self-described progression-based bike park, built by Gravity Logic. Massanutten Resort also has a bike park with some of the rockiest terrain on the east coast. UCI Pro Downhill riders, Neko Mulally and Dakota Norton have built, train at, and promoted races at Windrock Bike Park in Oliver Springs, Tennessee as well.
Vail, Colorado was the site of the 1994 Downhill World Championship. The trail was renamed "'94 Downhill", and is still ridden by downhill bikers today. In 2006, The U.S. National Championships were held at the Infineon Raceway in Sonoma, California. In 2007 and 2008 the U.S. National Championships were held in Mt. Snow, Vermont, and in 2009 and 2010 the U.S. National Championships were held at SolVista Bike Park in Colorado.
El Volcan, a small mountain in the southeastern, touristic El Hatillo Municipality of Caracas, has a Downhill course that has about 500 meters of vertical drop, it is used by hundreds of riders a day during dry and wet weather, mostly on weekends. El Volcan is the representative [Downhill] Track of Caracas city. The course is open to the public and riding is neither specifically allowed nor prohibited by law. The trails are also used by hikers all week long. Shuttles are about 10 Venezuelan bolivars per trip, they run from the parking lot of a Farmatodo drug store in La Boyera, up to the summit using public avenues and paved roads, taking from 15 minutes to 30 minutes depending on traffic in the area. The course apart from being used mostly for recreational purposes. It has also been used for irregularly scheduled downhill races due to the lack of organization in the rider's community.
The Union Cycliste Internationale is the governing body for downhill mountain bike racing. Racers qualify to compete in World Cup races by earning UCI points, which are gained by being a top ten finisher in certain races, usually national.
In the U.S., NORBA, as a part of USA Cycling, runs the National Mountain Bike Series, and the NCCA is the governing body for collegiate cycling. In the UK, British Cycling controls mountain biking as well as road and BMX. In Australia, MTBA controls all disciplines of Mountain biking.
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