Shimano has lightened up their Ultegra Bottom Bracket with the SM-BBR60. This new design drops 14g off its ancestor and features a new seal system which reduces friction by 50%.
The SM-BBR60 is available in English or Italian threads. Compatible with all HollowTech II cranks. 77 grams.
The product weight specified is an approximate weight based on the manufacturer’s specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.
Specifications
| Weight: 77 grams | |
| English (BSA) | Mfg PartNum: ISMBBR60B |
| Bottom Bracket STD: English (BSA) | |
| Italian | Mfg PartNum: ISMBBR60I |
| Bottom Bracket STD: Italian | |






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