CeramicSpeed BB90 Trek SRAM GXP Bearings coated**
| Description | - Trek developed their own bb standard to optimize their frame designs. BB90 has a 90.5mm shell width and 37mm inner diameter and is designed so that the bearings of external cups can hide within the frame. - The CeramicSpeed kit comes as two bearings, |
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| Supplier SKU | 101376.00 |
| Brand Name | CeramicSpeed |
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