Details
Shimano's Ultegra bottom bracket uses Pro Tour-proven technology for lighter weight and super smooth spinning, while still maintaining the same level of durability and stiffness. It's available in English, Italian, or Press Fit models.
Part Numbers
Option | UPC | MPN | Store SKU |
---|---|---|---|
English thread | 689228109544 | ISMBBR60B | |
Italian thread | 689228108448 | ISMBBR60I | SHI63532451Y |
Press Fit | 689228122567 | ISMBB7241B | SHI70561442B |