Bicycle Bottom bracket - Thompson type
For use with wedge shaped fasteners
These fasteers are called cotters.
This BB is NOS. There are signs of oxidation but all parts are smooth and bottom bracket works as intended with no extra friction.
40mm ø Bottom Bracket Bearing Shells
Bearings: 2x Ball Size 1/4" X 9B
Ideal for restoration of old timer bicycles like Philips, Raleigh, Bismarck and many more.