KMC has developed a heavy duty chain suited to be used on e-bikes with the Bosch drive system. As the Bosch drive system develops high torsion forces on the chain at gear shifts and in particular when shifting is done riding uphill, standard chains tend to break under such usage.
To cope with these high torsion forces the world’s biggest in bicycle chains, KMC, developed a special chain. This type is fitted with reinforced pins that can hold the side plates of the chain when heavy forces are applied. The shapes of the side plates are specially formed to allow for a better shifting performance which brings down the forces applied to the chain.