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Product features
30-Day Unconditional Guarantee
If for any reason you’re not satisfied with a Bontrager or Trek aftermarket purchase, return the item, along with the original sales receipt to the original place of purchase within 30 days for an exchange or refund. Think of it as a 30-day test ride.
Learn more| Manufacturer part # | 547804, 581374, 581373 |
|---|---|
| Steerer outer diameter | 28.6 mm (1-1/8") |
| Crown race inner diameter | 39.8 mm |
| Cup Insertion OD | 57 mm Top/51.8 mm Bottom |
| Stack height | 10 mm |
| Bearing type | Sealed |
| Headset type upper | Unthreaded fully integrated |
| Headset type lower | Fully integrated |
| Material | Aluminium |