Shimano SM-BB52-D Hollowtech II English Bottom Bracket Bottom Brackets Using synthetic insulation means the

Using synthetic insulation means the it still provides decent insulation

•Head compatible with Presta and Schrader valves

● Chain KMC X9

Compatible with 6 and 7-speed SIS Index Shifting drivetrains

Shimano SM-BB52-D Hollowtech II English Bottom Bracket Bottom Brackets Using synthetic insulation means theShimanos SM BB52D Hollowtech II Bottom Bracket is outboard bearing and compatible for use with 24 millimeter spindle cranksets. Sealed cartridge bearings &bulll; Bottom bracket for bikes with 83 mm width bottom bracket shell Includes cups, bearings, and inner sleeve Shimano P N: ESMBB52D Spindle Interface: Shimano Hollowtech II