WTB

Frequency Freehub Body - MicroSpline w/12mm End Cap

WTB Frequency Freehub Body - MicroSpline w/12mm End Cap is a direct-fit driver upgrade/replacement for WTB Frequency rear hubs, commonly spec’d on Proterra and CZR wheelsets. It’s the clean way to run Shimano Micro Spline-compatible cassettes without changing the wheel—ideal for drivetrain conversions, crash damage replacement, or keeping a second driver on hand for quick swaps.

• Micro Spline driver interface - Enables use of Shimano Micro Spline-compatible cassettes on a WTB Frequency rear hub
• WTB Frequency hub compatibility - Designed specifically for Frequency hubs found on WTB Proterra and CZR wheels
• Includes 12mm end cap - Supports correct axle end-cap fitment for 12mm thru-axle setups
• Service-friendly conversion part - Restores like-new engagement and cassette fit when replacing a worn or damaged freehub body
• Spacer note for other driver options - The 1.8mm spacer is included with XDR and HG11 road Frequency freehub bodies; HG11 road uses the 1.8mm spacer for Shimano/SRAM 8–11sp HG MTB cassettes, and XDR uses the 1.8mm spacer for XD cassettes