Grand Cru Bottom Bracket, Italian Thread
The Grand Cru Italian Threaded bottom bracket uses quality, oversized sealed bearings. The axle is hollow and made from boron steel. Both cups are aluminum alloy. The bearings are well sealed against dust, mud, and moisture, with four wiper seals at the bearings and two full contact grit shields at the cups.
About 258gm in 110mm. JIS taper. Includes axle bolts. Grand Cru BBs are available in spindle lengths to fit most cranks. Generally, it is the crank model that determines spindle length; so check what spindle length the crank manufacturer recommends or measure your old BB. If between sizes, it's usually wise to choose the longer.
Use the Dajia Cycleworks Bottom Bracket Tool or Park Tool BBT-22 for installation.