For off-road application, chain should be promoted with upgraded steel alloy for all parts, subject to going through exclusive heat-treating process as well, to remarkably reinforce its toughness against rugged terrain riding. KMC employs chromized pin and solid bushing into this chain to boost up its wear endurance and shock absorption to a great extent....
Works 420 & 428 Motocross / off road racingchain • Deep gold side plates & gold inner plates. Super strong & lightweight design for high performance / racing mini off road & motocross machines. Utilizes TST (TripleStar Treated) ultra hard pins & 100% heat treated components for high strength & durability.