30 Day Unconditional Guarantee
For Trek, Bontrager and Electra products, if for some reason you're not 100% happy with your purchase, you can return it within 30 days for a refund - no questions asked!
| Size | 152mm, No ring | 170mm, No ring |
|---|---|---|
| Length | 152 mm | 170 mm |
| Teeth | No ring | No ring |
| Speed | No ring | No ring |
| BCD | Direct mount | Direct mount |
| Chainline | 45 mm | 45 mm |
| Offset | Standard | Standard |
| Crank type | Square-tapered | Square-tapered |
| Threading | 1/2"(13 mm) | 1/2"(13 mm) |
| Material | Steel | Steel |