Bushnell Featherweight Eccentric. Advanced design, high-performance, extremely light weight and easy to use. Weight 144 grams.
- Fits BB shells from 53.8 ~ 54mm I.D. without shim - Fits BB shells up to 57mm width available shim. - Designed for standard English threaded bottom brackets (1.37 X 24 tpi) - Width is 66mm (will fit bb shells up to 73mm width) - Manufactured in the U.S.A.