How the Keirin works: Races last about two-and-a-half minutes. In each race, which is six laps (1.5 km or .93 miles) in length, cyclists are paced by a motorized bike for three laps with increasing ...

FUKUOKA—Like their male counterparts, women in the keirin bicycle racing circuit must endure grueling training sessions and risk broken bones and other serious injuries in the fierce ...

The derny is used to bring riders up to a speed of 50 km per hour before the official start of the keirin race. The derny bike completes three laps of the velodrome before leaving the track ...

He waited until the bell to launch his attack in the keirin, edging out Australian's Matthew Richardson and Matthew Glaetzer in a race which included a multi-bike collision.