Terache Honda Forged Gear Reduction 45%
Forged gear reduction set with 45% ratio, includes clutch basket, custom springs, thrust washer, and output shaft seal. Professional installation recommended.




Terache Honda Forged Gear Reduction 45%
Forged gear reduction set with 45% ratio, includes clutch basket, custom springs, thrust washer, and output shaft seal. Professional installation recommended.
- Availability: In Stock
- Brand: Terache
- Model: TE-GRHC045
Why Riders Choose Us
- Availability: In Stock
- Brand: Terache
- Model: TE-GRHC045
Why Riders Choose Us
- Chromoly forged and heat treated gear set engineered for increased strength and durability
- Billet 6061-T6 CNC-machined anodized hard-coated clutch basket for improved precision and wear resistance
- The tooth profile and gear mesh have been carefully refined to deliver exceptionally quiet operation and efficient power transfer
- The clutch basket assembly is riveted like OEM Honda ensuring secure and reliable construction
- Custom heavy-duty springs designed to support increased clutch load
- Includes custom crankshaft thrust washer and COG output shaft seal
Installation Notes:
Professional installation required. We recommend installing new Terache Super-Grip clutch discs with your gear reduction (only use Terache clutches or new OEM). Always remove the OEM crankshaft primary gear washer. 45% 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 case modifications to fit these gears.
Also fits 2015+ Rubicon 500/520 models.
Fits electric-shift 420/500/520 ATVs and Pioneer 500/520 models, but these applications require a SpeedoDRD for proper shifting.
Important Fitment Note:
Does NOT fit Rancher or Rubicon models with automatic shift mode, including DCT or FA models.
This gear reduction replaces OEM part numbers 22100-HP0-A00 and 23120-HP0-A00 to achieve a lower gear ratio.
| Reverse Chains | |
| Brand | Terache |
| Make | Honda |
| Model | Rancher/Rubicon/Foreman/Pioneer |
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