Bontrager Headset Expander Plug and Top Cap is no longer available.
Please consider these similar products.
Trek Bontrager Headset Expander Plug and Top Cap
W547432
601479785063
The Bontrager Headset Expander Plug and Top Cap 1-1/8IN EXPANDER BLACK is available at the following locations.
The item will be transferred to the location you choose during checkout.
If the item is not currently available to view at your desired location, please call your nearest store to arrange for it to be transferred.
Peace of mind for your carbon fibre steer tube.
- Approved for use on all Trek carbon fibre 1-1/8" steer tubes
- Always install one spacer above the stem on carbon fibre steer tubes
- Do not use on aluminium steer tubes in place of a traditional star nut
| Brand | Trek |
| Barcodes | 601479785063 |
| SKUs / Part Numbers | W547432 |
Please note: Manufacturers can sometimes change the specification of the products from time to time.
You May Also Like
© Copyright Cookson Cycles Limited 2025 | Powered by Push.
How does it work?
- Add 30 days free insurance during checkout
- Complete your purchase
- Receive welcome docs by email
- Ride with peace of mind
Why Sundays?
Trust our 14 years of experience in the bicycle insurance industry. Our comprehensive, customisable, and competitively priced coverage includes easy online quotes, fast claims handling, and expert customer service.
Free 10 day bike insurance on your new bike!
We offer 10 days free cover with all new bikes purchased, provided by our insurance partner VeloLife. You will be covered for the first 10 days of ownership against theft and accidental damage, so you can purchase with confidence.
Give yourself the comfort of no obligation free insurance, make sure you have peace of mind from the moment you leave the store. If anything happens to the bike in the first 10 days of ownership, know you are covered!