Enduro XC-15 External Bottom Bracket Road Shimano. Angular contact design allows preload adjustment and provides better lateral support 3/16" Grade 3 CERBEC bearings are 3 times larger than Shimano or SRAM Nitrogen infused steel for a smoother surface with reduced friction and longer life Compatible with Shimano, SRAM, and FSA 100% Made in the USA The only bottom bracket with a 1 year warranty 101g
SPECIFICATIONS BB Shell Thread: English BB Shell Width 68mm Crank Spindle Diameter 24mm Interface Hollowtech II BB Bearing Hybrid ceramic Color Black