Shimano, Deore SM-BB52, Hollowtech II bottom bracket, BSA, 68/E/73mm, 24mm, Steel, Silver, ESMBB52B. Compatible with all mountain Hollowtech II cranks.
MegaExo Road bottom bracket for FSA Omega No Pinch Bolt cranksets with 19mm hollow axles. FSA No Pinch Bolt cranks are equipped with a threaded spindle to mount the left arm directly.
External oversized cartridge bearing, CNC-machined external bearings cups, Composite center sleeve with double o-ring seals.