OneUp Components Shimano Micro Spline Freehub Body
Best durable upgrade for riders switching to modern twelve speed drivetrains.
This is the smartest way to modernize your drivetrain without replacing your entire wheelset. By swapping in this freehub, you gain access to the latest cassette standards while keeping your current hubs spinning smoothly. It’s a focused, high-performance upgrade that prioritizes compatibility over unnecessary expense.
$49.99
at
Worldwide Cyclery
More Freehub Body options
Who it's for
- Riders upgrading to Shimano 12-speed drivetrains on existing OneUp hubs
- Aggressive trail riders seeking reliable performance under heavy pedaling loads
- Home mechanics looking for a straightforward, user-friendly component upgrade
Who should skip it
- Cyclists with non-OneUp wheelsets needing a Micro Spline solution
- Budget-conscious builders managing the high costs of a full drivetrain overhaul
- Riders who prefer universal parts with minimal proprietary hardware requirements
Performance breakdown
Bearing smoothness
Enduro 6903 bearings deliver exceptionally low friction and consistent rotation.
Installation ease
Straightforward swap process makes drivetrain upgrades accessible for most home mechanics.
Compatibility range
Strictly limited to OneUp proprietary hubs, restricting broader aftermarket utility.
Build durability
Robust construction ensures long-term reliability under high-torque pedaling loads.
Micro Spline integration
Perfectly machined splines ensure secure, play-free engagement with Shimano cassettes.
Conversion completeness
Includes all necessary end caps for a seamless 12x148mm setup.
Key Specs
Freehub Type
Shimano Micro Spline
Engagement
44T ratchet
Finish
Gloss
Compatibility
OneUp Components rear disc hubs
Bearing Type
Enduro 6903 precision bearings
Axle Diameter
12 mm
Over Locknut Dimension
148 mm
Includes
Drive side end cap
Installation
Tool-free
Know before you buy
Still have a question?
Ask Metto anything about the OneUp Components Shimano Micro Spline Freehub Body before you decide.
