With reliable SHIMANO bearings and seals, the SHIMANO ULTEGRA bottom bracket has a long service life.
PRODUCT SPECIFICATIONS
| MODEL NO |
SM-BBR60 |
| SERIES |
SHIMANO 105 R7100 Di2 Series |
| Average weight |
77 |
| HOLLOWTECH II bottom bracket|Threaded bottom bracket type |
✔ |
| Threaded bottom bracket shell width (mm)|68 |
✔ |
| Threaded bottom bracket shell width (mm)|70 |
✔ |
| Small ball bearing |
✔ |
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