Price: $50.40         

Item #PG-001B: Paragon Bottom Bracket Shells are manufactured from Ancotech tubing and come with standard English threads. The threads are 1.370 x 24 TPI, right and left hand, and the shells are supplied 1/2 mm longer then specified to allow material for facing.

Threads are 14 mm in depth and the left hand thread (right side) is clearing marked with a groove. For ease in chasing after welding, the center of the shell is relieved to 37.2 mm to allow clearance for the tap. This is the best titanium bottom bracket shell on the market.

Paragon part#BB0023