Bontrager 6903 LLH Hub Bearing
Best replacement bearing for cyclists restoring smooth, efficient wheel performance.
This is the essential refresh your wheels need to regain that factory-fresh spin. By balancing low-friction rotation with robust weather sealing, it solves the classic dilemma of choosing between speed and longevity. It is a simple, high-impact maintenance step that keeps your drivetrain feeling precise and reliable for the long haul.
$20.99
at
Just Riding Along Bicycle Shop (JRABS)
Who it's for
- Cyclists needing guaranteed compatibility with Bontrager wheelsets
- Riders tackling wet, muddy, or harsh riding conditions
- Performance-focused riders prioritizing smooth, efficient power transfer
Who should skip it
- Budget-conscious shoppers seeking generic, lower-cost bearing alternatives
- Cyclists in remote areas without local Trek dealers
- Enthusiasts wanting ceramic or specialized aftermarket bearing upgrades
Performance breakdown
Rotational Efficiency
LLH seals minimize drag for a noticeably smoother, faster wheel spin.
Weather Resistance
Sealed cartridge design effectively keeps grit and moisture out of internals.
Installation Ease
Standard sizing makes this a straightforward swap for most home mechanics.
Durability
High-grade steel construction ensures long-term reliability under consistent riding loads.
System Compatibility
Engineered specifically for Bontrager hubs to guarantee a perfect, precise fit.
Maintenance Value
An affordable way to restore factory-fresh performance to worn wheelsets.
Key Specs
Bearing Type
Sealed cartridge
Seal Type
LLH
Bearing Size
6903
Material
Steel
Color
Silver
Part Number
5288405
Serviceable
Yes
Compatibility
Bontrager wheels
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