SHIMANO Dura Ace FC-7700 Front Chainwheel Crank Arm Cap and Plastic Washer – Y16P98020
Use in combination with M15 crank bolts for fast crank removal. Includes 1 aluminum threaded cap and 1 washer that can be used with either 8-Spline or ISIS crank arms when paired with the matching (Shimano-M15) crank bolt
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.