Rear Hub | Loop 4 Season V1 | Disc Brake | 28 Hole | Black 275mm extensive wind tunnel data and

extensive wind tunnel data and the full range of wheels we tested against

while the more substantial side knobs protect the tyre from rocks or gashes

3 watt / 6 volt output at 18-19kmh tested to German standard K687 for output requirement

Steel Shimano HG freehub body to avoid the cassette digging in under power

Rear Hub | Loop 4 Season V1 | Disc Brake | 28 Hole | Black 275mm extensive wind tunnel data andTechnical Specification Type: Rear Hub Braking Interface: Disc Brake Spoke Holes: 28 Spoke Bend Type: J Bend Colour: Black Freehub not supplied with this product. Hub bearings from left (disc side) to right (non disc side): 6902 2RS Bearing Stainless Steel 6902 2RS Bearing Stainless Steel