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!
| Manufacturer part # | 380-0475023540 | 380-0516027540 | WA147{BCD82 28T}(1x11) | WA149{BCD82 30T}(1x11) |
|---|---|---|---|---|
| Size | 34t, 82mm | 32t, 82mm | 28t, 82mm | 30t, 82mm |
| Teeth | 34t | 32t | 28t | 30t |
| BCD | 82 mm | 82 mm | 82 mm | 82 mm |
| Bolt pattern | 4-Bolt | 4-Bolt | 4-Bolt | 4-Bolt |
| Speed | 1 | 1 | 1 | 1 |
| Material | Steel | Steel | Steel | Steel |