Generic
✓Headset Spacers
Replacement Headset Bearings to fit Trek Madone Domane Emonda bikes
★★★★★4.3
$48.99
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$26.99
eMagTech Bicycle Headset Crown Race Base Ring 29.8mm x 39.8mm Compatible with Tapered Fork Headset Compatible with MTB(B)
★★★★★
$26.99
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About this item
- Headset base ring compatibility compatible with tapered fork and headset systems for mountain road and hybrid bikes fits 29.8 mm inner and 39.8mm outer.
- Bicycle crown race material aluminum alloy precision machined for smooth steering support helps center the lower bearing reduces play and noise during rides corrosion resistant silver finish easy to clean after wet use.
- Tapered fork conversion use enables replacement or upgrade when swapping forks frames or headsets restores correct bearing seat geometry and improves contact between steerer crown and lower bearing for consistent handling.
- MTB headset parts dimensions inner 29.8 mm outer 39.8 mm thickness matched to common 40 mm lower bearings installs with a crown race setting tool or soft mallet press fit design seats evenly around the steerer crown.
- Bike maintenance scenarios suitable for home mechanics and shop service trail riding commuting gravel touring and city use supports steady steering feel after headset rebuilds fork upgrades or frame overhauls.
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Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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