
HPO Series Transmission Chain — Manufacturer Ref. M573-00-114. Designed by MOOSE OFFROAD HARD - PARTS for cross use on 350–450 cm³ engines, this 520 HPO O-Ring chain combines robustness with off-road-focused design.
Suitable for cross machines such as Yamaha YZ 450 F (incl. Monster Energy Racing Edition) and Kawasaki KX 450, the HPO Series is aimed at riders looking for a high-performance and reliable O-Ring chain for their off-road outings. Ideal for targeted replacement on 350–450 cm³ without compromising on construction.