CHAINRING LOCK RING PARK LRT-2 f/SHI STEPSFits Shimano STEPS E6100, E7000, E8000 and E9000 e bike motor systems For lockrings with 54mm outside diameter with 16 notches Replacement for Shimano TL FC39 tool 36mm hex drive to be used with Park Tool TWB 36 Crow Foot and a torque wrench to properly measure torque Constructed of 4140 heat treated steel and plated for long life
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