Bicycle Frame Jig/Fixture Bottom Bracket Centering Cones:
- Used to align and support the top of the seat tube in your bicycle frame jig.
- 303 Stainless Steel.
- CNC manufactured to precise tolerances.
- Smooth bored for 5/16" or 8mm bolt.
- 1.45" large O.D.
- .625" small O.D.
- Sold as a single cone.
MADE IN THE USA.