Stark Varg Chain adjuster ball pin

The chain adjuster ball pin sits between the adjuster screw and the axle block, passing the screw's push to the block as the rear wheel is drawn back to set chain slack. It is a small loose component that can be dropped or left behind when the rear wheel is out, so check both sides are present and seated before the axle is torqued. Stark part STD-SC-0018.