Those who are out on the pump track with full power or passionately honing their dirt jump skills must be able to fully rely on their bike chassis. That's why we called upon all our expertise in aluminum frame construction during the development of the Flying Circus. The result is an extremely stiff, robust, lightweight – and perfectly balanced – construction. BSA bottom brackets allow for the use of many different crank options. Genius: Thanks to the jump-ready geometry with short chainstays, you always maintain full control over your bike, everywhere and at all times.