This bottom bracket shell is machined from 1.5" x .090" wall 3/2.5 titanium tubing. The outside diameter is the the stock tube diameter. The center 2.14" is textured to provide a mechanical interface with the bonding epoxy used in carbon fiber frame production. The width is 68 mm. The threads are 1.370"-24, right and left hand, and the thread length is 0.50". The left hand thread is identified by a radial groove on the outside diameter and face of the shell. The minor diameter of the thread is 1.330"/1.340" and is relieved on the ID to 1.385"/1.395".
- This threaded bottom bracket shells is 1.37" x 24 threads per inch and right and left threaded (also known as British Standard, ISO/English or BSA), making it compatible with all modern threaded bottom bracket spindles.
- Use our heatsink FT5002 (see Related Products on this page).
Item sold individually.