Products

The Challenge threaded inline valve extenders add length so that your valves will protrude thru deeper dish rims allowing you to attach a pump. The...

ULTIMATE PERFORMANCE . The Criterium RS has the perfect mix of speed, grip and durability with at the same time providing refined control and sho...

Produced by combining our latest, tested, ultimate technologies to create a more robust, longer-lasting road tire while maintaining the speed, co...

Challenge produces the only seamless 'one-piece' latex inner tubes on the market providing a smooth, balanced ride with no pucker or bump like thos...