Mk1 Rear brake upgrade

[keri-WMS]

Hi Mark, Mk1 centre bore is 54.1

Yep! Just to clarify in geeky detail:

Mk1 brakes are 54.15mm (disc) on 54.00mm (hub)
Mk1 wheels are 54.15mm (wheel) on 54.00mm (hub)
Mk3 brakes are 55.15mm (disc) on 55.00mm (hub, there is a step on the Mk3 hub where the disc locates)
Mk3 wheels are 54.15mm (wheel) on 54.00mm (hub, the part of the Mk3 hub that the wheel locates is the same as on the Mk1)

Hope that covers it! :-)