Pure Flux One resets expectations, recapturing the joy of cycling. Pure Flux One Electric Bike in Black. Frame - 6061-T6 heat treated alloy frame. Fork - 6061 Alloy Fork. Brakes - Mechanical disc Brakes. Gearing - Gates Carbon belt drive - single speed. LCD handlebar mounted display Vision rear hub motor with 35nm torque. Wellgo alloy pedals and comfort grips