Shimano WH-RS21 Freehub Body
Best reliable replacement for maintaining wheel performance.
A precise factory replacement part designed to revive worn wheel hubs. It restores reliable power transfer and smooth engagement, extending the lifespan of existing wheelsets without the need for a complete replacement.
$38.21
at
365 Cycles
Who it's for
- Cyclists needing a direct replacement for their compatible Shimano wheels.
- Riders experiencing degraded shifting or power loss due to a worn freehub.
- Users seeking long-lasting, dependable components from a trusted brand.
Who should skip it
- Cyclists with non-WH-RS21 wheels or those seeking universal compatibility.
- Beginners without specialized tools or experience in bicycle component replacement.
- Riders with older or non-standard cassettes who need to ensure compatibility.
Performance breakdown
Engagement Precision
Factory-standard pawl design ensures reliable, consistent power transfer under load.
Installation Simplicity
Requires specific cone wrenches and mechanical know-how for proper hub assembly.
Durability Standards
Robust steel construction handles daily road riding stresses with minimal wear.
Compatibility Match
Perfect fitment for WH-RS21 wheelsets eliminates guesswork during the repair process.
Bearing Smoothness
Provides a reliable spin that matches the original factory performance specifications.
Cassette Interface
Standard HG splines offer secure, slip-free mounting for modern road cassettes.
Key Specs
Component Type
Freehub Body
Compatibility
Shimano WH-RS61, WH-RS31, WH-RS21, WH-RS11
Drivetrain Speeds
11, 12
Freehub Body Type
Shimano HG
Axle Type
Quick Release
Hub Spacing
130mm
Brake Type
Rim Brake
Material
Steel
Part Number
Y49V98040
Know before you buy
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