Skarper has introduced an innovative electric bike conversion kit using a disc-brake rotor for powering pedal-operated bicycles. The company claims that the new kit can transform any disc-brake bike ...

Skarper announced its electric bike system in June 2022, showcasing a design that is attached via a disc brake rotor to electrify a regular bike – and now it's going into production. Skarper’s system, ...

BIKE Magazine aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Some form and function of this essential and lifesaving tech is ...