Shimano BB-ES300 Octalink Bottom Bracket | BSA 68 mm
Shimano BB-ES300 Octalink Bottom Bracket | BSA 68 mm
The Shimano BB-ES300 bottom bracket features a round hollow axle and a toothed interface designed for Octalink cranksets, suitable for frames with BSA threading (68mm).
Compared to the conventional square axle connection, the OCTALINK 8-tooth interface that connects the bottom bracket and crankset significantly increases the strength and rigidity of the entire assembly, ensuring enhanced power transfer.
| Category | MTB, City, Hybrid |
| BB Type | BSA |
| Crank Brand | Shimano |
| Axle Type | Octalink |
| Frame width (mm) | 68 |
| Hub Length (mm) | 113, 118, 121, 126 |
| Bearing material | Steel |
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