Shimano 105 SM BBR60 Bottom Bracket BSA Threaded Hollowtech II Road Bicycle Bike

SHIMANO ULTEGRA - Bottom Bracket - Threaded - HOLLOWTECH II - 68/70 mm shell widthWith reliable SHIMANO bearings and seals, the SHIMANO ULTEGRA bottom bracket has a long service life.Key Features:HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiencyHollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durabilityUse TLFC37 or TLFC25 in conjunction with TLFC36 adaptor tool for installation and removal - Manufacturers part numbers: 32172|Shimano_BBR60B

• Equal durability to the SM-BB6700
• Half the friction of SM-BB6700
• 14g lighter than SM-BB6700