This bottom bracket shell is machined from 2" x .180" wall 3/2.5 titanium tubing. The width is 68.5 mm and the outside diameter is 1-7/8". Both dimensions are machine finished to size. The bearing bore is supplied undersized, 1.640"/1.643", and must be finished to size by the framebuilder after welding. Snap-ring grooves are finished to size. The inside diameter is relieved to 1.745"/1.755".
- Use with our heatsink FT5003 (see Related Products on this page).
Item sold individually.
Photo courtesy of Seven Cycles.