Gearbox

Gearbox Parts and Internals

Gearbox work is where a rebuild either comes together or stops dead, usually because the box on the bench is not the one the model list says should be there. British gearboxes were shared between models, between model years and sometimes between makes, and plenty have been swapped over fifty years of service.

This category gathers complete gear sets and individual gears for Norton, BSA, Triumph, Royal Enfield, Bultaco, CCM and Honda machines, in original and NOS stock where we have it and reproduction to the correct pattern where we do not. Related groups such as bearings, sprockets and clutch parts each have a category of their own.