UCI releases its new mountain bike race regulations

Racers tangle on the four cross course.

Racers tangle on the four cross course. (Image credit: André-Olivier Lyra)

Rules governing mountain bike racing are set to become clearer next year after the International Cycling Union (UCI) released its new regulations for the sport this week. The disciplines of marathon and four cross are set to face the biggest changes when the new rules come into effect from January 1, 2011.