. The Shimano Deore BB52 Hollow Tech II Bottom Bracket offers better sealing performance than previous editions. The Deore's bottom bracket seal design provides smooth rotation & enhanced durability
Features: Durable Smooth rotation Compatible with: FC-T551, FC-T611, FC-M552, FC-M590, FC-M610, FC-M612, FC-M615, FC-M622, FC-M625, FC-M640, FC-M645 A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace & XTR products) Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.