The 60% Honda Gear Reduction is designed for riders who need much lower gearing for huge tires and thick mud. By replacing the OEM primary gear components, this reduction delivers a lower gear ratio that helps improve low-end torque, throttle control, and overall drivability in tough conditions.
This gear reduction replaces OEM part numbers 22100-HP0-A00 and 23120-HP0-A00.
Fitment:
Compatible with Honda Rancher 420 and Honda Foreman 500/520 models. Also fits 2015+ Honda Rubicon 500/520, electric shift ATVs, and Honda Pioneer 500/520 models.
Important Fitment Note:
Electric shift ATVs and Pioneer 500/520 models require a SpeedoDRD for proper shifting.
Does Not Fit:
Does not fit Rancher or Rubicon models with automatic shift mode, including DCT or FA models.
Installation Notes:
Professional installation required. We recommend installing new Terache Super-Grip clutch discs with your gear reduction. Always remove the OEM crankshaft primary gear washer. 60% reductions include stiffer clutch springs. Always install the Terache primary gear thrust washer onto the crankshaft. Always use motor oil with a JASO-MA rating. Older air-cooled Foreman models require significant modifications to fit these gears.







