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 | 10mm x 25.15mm | 30mm x 25.15mm |
|---|---|---|
| Thickness | 10 mm | 30 mm |
| Inner diameter | 25.15 mm: | 25.15 mm: |
| Material | Plastic | Plastic |