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Marin Alpine Trail Headset Bearing Kit | Blueseal Bike Bearings™

Blueseal Bike Bearings™ are designed specifically for use in bicycles with extra grease, superior seals and extended life.

++ Upgrade you material for enhanced corrosion resistance.

£24.99 GBP
£20.99 GBP
 per 
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You Save 16% OFF RRP

Material Upgrades
In Stock - Same Working Day Despatch Before 12PM
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This kit contains both the upper and lower bearings used in the headsets of Alpine Trail 

Compatible with Alloy, Carbon and E Trail bikes.


Kit contains:

1 x P03K (MR122 TH873E) 30.15 x 41 x 6.5H - Internal & External Angle: 36/45

1 x MR127 (MR127 TH073E) 40 x 51.8 x 8H -  Internal & External Angle: 36/45

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Marin Alpine Trail Headset Bearing Kit | Blueseal Bike Bearings™

Material Upgrades

Black Oxide Coating

Enhanced Corrosion Resistance

Black oxide coatings enhance overall reliability by preventing corrosion, reducing wear, and improving the durability of bearings.

Stainless Steel

Superior Corrosion Resistance

440C Stainless Steel with 16-18% Chromium. Provides the highest corrosion resistance especially in poor wet conditions.

About Blueseal Bike Bearings™   

About Blueseal Bike Bearings™   

Stumpjumper Headset Bearings - Specialized - Trailvision - Bicycle Bearing Suppliers

ABEC 3 as Standard

Most non-bike specific bearings are ABEC 1 as standard. Blueseal Bike Bearings™ are all ABEC 3 Rated, this higher class of bearing runs smoother & last longer. 

Max. Fill Premium Grease

Standard bearings contain a small amount of basic bearing grease (Approx. 20%) which offers little protection towards corrosion and rain and dirt ingress.

Blueseal Bike Bearings™ contain the maximum fill of Mobil waterproof grease possible without compromising the function of the close-contact rubber seals.

Designed For Bicycles

Specially engineered bicycle bearings. Designed for maximum efficiency, they outperform standard bearings.

Close Contact 2RS LLB Seals

Blueseal Bike Bearings™ have top-quality LLB 2RS close-contact rubber seals. The tighter the seal is to the inner bearing race the harder for water and dirt to get in and the grease to get out!

100,000's Bearings Sold - Trusted for Over 15 Years   

100,000's Bearings Sold - Trusted for Over 15 Years   

Trailvision is an independent family business with over 15 years of hands-on experience in the bike-bearing industry. Using our expertise we develop and stock only the best bearings specifically suited for bicycles.

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