Grand Cru French Thread Bottom Brackets

The French thread Grand Cru bottom brackets have oversize sealed bearings, boron steel hollow axles. The cups are alloy. Includes axle bolts. About 258gm in 110mm. JIS taper.

Grand Cru BB are available in several spindle lengths to fit various cranks. Generally, it is the crank model, not the frame, that determines spindle length. So, check what spindle length the crank manufacturer recommends or measure you old BB. If between sizes, it's usually wise to choose the longer.

Use the common Shimano-type BB tool for installation.