Powerful and consistent braking performance in all riding conditions.
Center Lock mounting system
Compatible with both resin or metal pads
External serration lockring (requires BB tool), compatible with all axle types from QR to 20mm thru-axles
Ultegra/105 level Hollowtech II bottom bracket
Shimano, SM-BBR60, Hollowtech II Bottom Bracket, BSA, 68mm, 24mm, Grey, ISMBBR60B
Compatible with all road Hollowtech II cranks
