A unicycle is a vehicle that touches the ground with only one wheel. The most common variation has a frame with a saddle, and has a pedal-driven direct-drive. A two speed hub is commercially available for faster unicycling. Unicycling is practiced professionally in circuses, by street performers, in festivals, and as a hobby. Unicycles have also been used to create new sports such as unicycle hockey. In recent years, unicycles have also been used in mountain unicycling, an activity similar to mountain biking or trials.
Mountain unicycling is an adventure sport that consists of traversing rough terrain on a unicycle. Mountain unicycling (muni) is undertaken on similar terrain to mountain biking. However, muni requires much more attention to the microfeatures of the short distance in front of the wheel. Unicycles' lack of a freewheel means that descents must be controlled all the way, and the typical lack of a gear system prevents the rider from reaching high speeds. Muni usually takes place on specially designed unicycles, which are equipped with strong hubs, large, knobbly tires, high-grip pedals and rugged frames. Some are also equipped with rim or disc brakes, having the lever mounted under the nose of the saddle. The brake primarily helps to compensate the downhill-slope force, while more expert riders also use it to decelerate or stop.
Salem is a city in northern Columbiana County, Ohio, United States. At the 2020 census, the city's population was 11,915. Extending into southern Mahoning County, it is the principal city of the Salem micropolitan area, which includes all of Columbiana County. It lies about 18 miles (29 km) southwest of Youngstown, 28 miles (45 km) east of Canton, and 60 miles (97 km) southeast of Cleveland.
An electric unicycle is a self-balancing personal transporter with a single wheel. The rider controls speed by leaning forwards or backwards, and steers by twisting or tilting the unit side to side. The self-balancing mechanism uses accelerometers and gyroscopes. Most manufacturers of EUCs are based out of China, including Segway, Inmotion, Kingsong, Begode, and Leaperkim.
The crankset or chainset is the component of a bicycle drivetrain that converts the reciprocating motion of the rider's legs into rotational motion used to drive the chain or belt, which in turn drives the rear wheel. It consists of one or more sprockets, also called chainrings or chainwheels attached to the cranks, arms, or crankarms to which the pedals attach. It is connected to the rider by the pedals, to the bicycle frame by the bottom bracket, and to the rear sprocket, cassette or freewheel via the chain.
Kris Holm is a Canadian best known for riding a unicycle in off-road conditions. He has ridden since 1985 and is considered one of the pioneers of off-road unicycling, and is the world's best-known unicyclist. He is the founder of competitive unicycle trials and was the 1999 North American, 2002 World, and 2005 European unicycle trials champion. He also held the unicycle sidehop world record from 1998-2004, and performed trials demonstrations with the Norco Factory Trials Team from 1998-2006.
Unicycle hockey is a team sport, similar to rink hockey where players try to hit the ball with their sticks into the other team's goal, except that each player must be mounted on a unicycle to play the ball. A team is composed of five players, but there is no dedicated goalkeeper role.
David "Tinker" Juarez is an American former professional BMX and cross-country mountain bike racer. His prime competitive years in BMX were from 1978 to 1984 and in mountain bike racing 1986 to 2005. Since late 2005, he has competed as a Marathon mountain bike racer. In all three disciplines, he has won numerous national and international competitions. Most recently, Juarez finished third in the 2006 Race Across America Endurance bicycle race.
Amy Shields is an American freestyle unicyclists. She holds five world unicycling titles and in her home continent she holds over 15 North American titles since 2001.
Joe Gruttola is an American BMX Flatland Freestyler.
Jack Halpern is a Japan-based lexicographer specializing in Chinese characters, namely kanji. He is best known as editor-in-chief of the Kodansha Kanji Learner's Dictionary and as the inventor of the SKIP system for kanji lookup. Halpern is also an active unicyclist, having served as founder and president of the International Unicycling Federation. He currently resides in Saitama, Japan.
The Uno is a novel self-balancing electric motorcycle using two wheels side by side. The Uno III adds a third wheel that allows it to transform into a tricycle.
The Liffey Swim, currently titled the Jones Engineering Dublin City Liffey Swim, is an annual race in Dublin's main river, the Liffey, and is one of Ireland's most famous traditional sporting events. The race is managed by a voluntary not-for-profit organisation, Leinster Open Sea. The 100th Liffey Swim over a 2.2 km course took place on Saturday 3 August 2019, starting at the Rory O’More Bridge beside the Guinness Brewery and finishing at North Wall Quay in front of the Customs House.
Dame Sarah Joanne Storey, is a British cyclist and swimmer, a multiple gold medallist in the Paralympic Games, and six times British (able-bodied) national track champion.
Michał Kwiatkowski is a Polish professional road bicycle racer, who currently rides for UCI WorldTeam Ineos Grenadiers.
Focus Designs is an American based designer and distributor of self-balancing unicycles. It is known as the first company to build and release the first commercially available self-balancing unicycle. The company appeared in a 2012 episode of the Shark Tank where it was offered funding from the Sharks.
The Unipiper is a Portland, Oregon unicyclist, street performer, bagpiper and internet celebrity.
Joe Klecker is an American long-distance runner. After a successful collegiate career with the Colorado Buffaloes he turned professional in 2020 joining the On Athletics Club coached by Dathan Ritzenhein. Klecker holds personal bests of 3:37.00 for 1500m, 7:34.14 for 3000m, 12:54.99 for 5000m, and 27:07.57 for 10000m, all set as a part of the On Athletics Club.
Roger William Haun III is a US-born Ghanaian unicyclist. He is the first person to win medals at the Unicycle World Championships for Ghana by taking a silver and bronze in 2022 as well as gold and bronze in 2024.
Unicycle time trial records are performances that are not set in unicycle competitions. They require a separate organization. The unicycles used for these records generally belong to the "unlimited" category. In other words, there are no limits on wheel size, crank length or frame shape. The only rule is that they must have a single wheel and no motorized assistance.
