The RK 420 MRU Chain is the go-to drive chain for riders who demand precision and reliability — from MotoGP paddocks to daily commutes. Crafted in Japan to exacting standards, RK Chain is trusted across all levels of motorcycle riding, including club racing, track days, and street use.
Available in 120 and 130 link counts, the 420 MRU is a perfect fit for mini bikes, pit bikes, and small-displacement motorcycles including the Honda Grom, Monkey, CRF110, KLX110, Z125, and TNT135.
Specifications:
- Brand: RK
- Chain Size: 420
- Series: MRU
- Available Links: 120 (SKU: BL420MRU-120), 130 (SKU: BL420MRU-130)
- Weight: ~2.5 lbs
- Origin: Made in Japan
Compatible Models (partial list):
- Honda Grom (OG, SF, 2022+)
- Honda Monkey (1st Gen, 2022+)
- Honda CRF110 (2019+)
- Kawasaki KLX110
- Kawasaki Z125
- SSR TNT135
Howling Moto proudly carries RK Chain for its unbeatable quality and race-proven performance.
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