Hi again everyone I have recently fitted new rear wheel bearings so thought I should do the drive sprocket as well and wish I had not bothered because every time I re-assemble something is binding, it feels like it is the speedo drive but cannot really be sure if I slacken the hub nut slightly everything is free, the new bearing is a sealed bearing so I have not replaced the seal and the bearing appears to be the same size, the speedo drive is perfectly free until nipped up can anyone suggest what I am doing wrong as it has me baffled, many thanks Chri