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 # | ZS41/28.6 | ZS52/30 |
|---|---|
| Steerer outer diameter | 28.6mm (1-1/8") / 38.1mm (1-1/2") |
| Crown race inner diameter | 28.6 mm |
| Stack height | 10 mm |
| Bearing type | Sealed |
| Headset type upper | Unthreaded fully integrated |
| Headset type lower | Fully integrated |
| Material | Aluminium |