Shimano Crankset Arm Pinch Bolt Replacement crankarm pinch bolt for select Shimano XT M780, SLX M660, 105 5700 (outboard bearing) cranksets, road and MTB. Shimano Crankset Arm Pinch Bolt Specifications: Shimano part number: Y1KS98030 Includes: Single bolt only 2013 catalog incorrectly lists this part as "fixing bolt" | Shimano XT/SLX/105 Crank Arm Pinch Bolt Sold Each, XT/M780, SLX/M660, 105/5700