Save watts and ride faster with guaranteed lowest friction, optimized power transfer, and longest product lifetime BB90 bottom bracket standard Coated: metallic layer that covers bearing races making them 75% harder than steel. Even lower friction and high
| model | coated |
| spindle interface | 24mm |
| shell | BB90 |
| shell ID | 37mm |
| width | 90.5mm |
| color | black |
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