Manufacturer

Skarper

United Kingdom

Disk drive. A motor unit on the chainstay that drives the disc rotor, not a hub or a bottom bracket.

Skarper

British disk drive. The motor sits on the chainstay and drives the rear disc, not the tyre and not the bottom bracket. 250 W, about 240 Wh.

250 WDisk drive25 km/h

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