Prototype of a chainless bicycle built by a Danish company called CeramicSpeed. The drivetrain has no chain or derailleurs, making it a clear contender for the worlds most efficient bicycle. It’s so efficient, almost none of the power generated by a rider

Prototype of a chainless bicycle built by a Danish company called CeramicSpeed. The drivetrain has no chain or derailleurs, making it a clear contender for the worlds most efficient bicycle. It’s so efficient, almost none of the power generated by a rider