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| Manufacturer part # | CR4UPA-101 | CR4UPA-102 |
|---|---|---|
| Size | 36t, Direct mount | 38t, Direct mount |
| Teeth | 36t | 38t |
| BCD | Direct Mount | Direct Mount |
| Bolt pattern | Direct mount | Direct mount |
| Speed | 11/12 | 11/12 |
| Material | Aluminum | Aluminum |
| Weight | 148g | 174g |