Shimano Deore SM-BB52B HollowTech II English Bottom BracketThe Shimano Deore SM-BB52B HollowTech II English Bottom Bracket is compatible with Shimano Hollowtech II Cranksets with a BB shell width of 68 or73mm sizes. This Outboard bearing bottom bracket integrates with your threaded bottom bracket shell. Once installed, your crank will slide into place. Weighs 73g.689228869059
