This is a pair of 5/8″ to 3/4″ axle adapter wheel bearings for an older Rokon with the 5/8″ axle and 15″ drum wheels. These allow using a much stronger 3/4″ axle in a drum wheel that originally had a 5/8″ axle. They will not work with MK1 and MK2 drum brakes. They are 1-3/8″ OD flange bearings and come with a selection of shims to position the wheel to align the sprockets.
Axle not included.