Bottom bracket shells - T47 threaded - 69mm, 74mm - 50.8mm OD
sku # BBS-T47-69, BBS-T47-74
Made from 4130 steel, these lightweight 50.8mm (outer diameter) T47 threaded bottom bracket shells are available in 69mm and 74mm with the extra 1mm of width ensuring sufficient material for facing both sides. At the end of the facing process, they will then be 68mm and 73mm respectively. Drive side (left hand thread) can be identified by the slight gap/recess on the drive side before the threads begin. 16mm thread depth on each side.
Right and left threaded M47 x 1.0
69mm - 149g
74mm - 160g
Weights are based on representative samples. Actual weights may vary slightly. Imported.