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They enclose the rider and machine in aerodynamic shapes made of carbon fibre, Kevlar or fiberglass to reduce air resistance. The record hour average speeds for these machines – 90 km/h (56 mph) for men and 84 km/h (52 mph) for women – are faster than a UCI rider could perform even in a short 200-meter sprint for 10 seconds, 72 km/h (45 mph ...
Reducing the weight of the bike + rider by 1 kg would increase speed by 0.01 m/s at 9 m/s on the flat (5 seconds in a 32 km/h (20 mph), 40-kilometre (25 mile) time trial). The same reduction on a 7% grade would be worth 0.04 m/s (90 kg bike + rider) to 0.07 m/s (65 kg bike + rider).
Fairing: a full or partial covering for a bicycle to reduce aerodynamic drag or to protect the rider from the elements; Fender or mudguard: curved pieces of metal or plastic above the tires which catch and redirect road spray thrown up by the tires, allowing the rider to remain relatively clean. May come in pairs
On land, the speed record registered by a rider on a 200-meter flying start speed trial was 133.28 km/h (82.82 mph) by the Canadian Sam Whittingham riding the Varna Tempest, a streamliner recumbent bicycle in 2009, [19] at Battle Mountain, Nevada. His record has been surpassed by 0.5 km/h by Sebastiaan Bowier of the Netherlands in 2013 setting ...
To achieve the speed, conditions were simulated whereby Burford was "towed" until he reached 100 mph (160 km/h). The towline was then "released", and he was left to pedal. Bursford's speed was attained during a half-minute interval with him reaching 60 mph (97 km/h) in two seconds at the start of the attempt. [ 4 ]
The hub shell of a spoked wheel generally has two flanges extending radially outward from the axle. Each flange has holes or slots to which spokes are affixed. Some wheels (like the Full Speed Ahead RD-800) have an additional flange in the center of the hub. Others (like some from Bontrager and Zipp) do not have a noticeable flange. The spokes ...
Velodrome. Banking in the turns, called cant, allows riders to keep their bikes relatively perpendicular to the surface while riding at speed.When travelling through the turns at racing speed, which may exceed 85 km/h (52.8 mph), the banking attempts to match the natural lean of a bicycle moving through that curve.
VAM is a parameter used in cycling as a measure of fitness and speed; it is useful for relatively objective comparisons of performances and estimating a rider's power output per kilogram of body mass, which is one of the most important qualities of a cyclist who competes in stage races and other mountainous [citation needed] events. Dr.