Chain slipper for 644 models using the 525 pitch chain. Please note, as this is a molded item it may need the 'fins' warming slightly to allow the chain to pass through smoothly.
Replacement longer needle roller bearing to help reduce wear. When fitting this item, you can only use 2x o-rings on one side and 1x o-ring on the other. It will not fit 644 from '04 on.