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Grand Cru Bottom Bracket, French Thread
The French thread Grand Cru bottom brackets have oversize sealed bearings. The axles are hollow and made from boron steel. Both cups are aluminum alloy. The bearing are well sealed against dust, mud, and moisture with 4 wiper seals at the bearings and 2 full contact grit shields at the cups.
About 258gm in 110mm. JIS taper. Includes axle bolts. Grand Cru BB are available in spindle lengths to fit most 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.
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