This new Non O-ring 420 chain has been designed specifically for todays higher-powered Mini Motocross racing machines that use a 420 chain, up to 100cc capacity. This chain is a Mini version of our very popular Renthal Works 520R1 Chain. Renthal Works 420R1 Chain has the following features: Shot-peened alloy steel side plates for high tensile strength and maximum load resistance. Extended bushings to reduce friction between outer and inner link plates, maximizing power output. Chromised bearing pins for excellent resistance to wear, specifically under off road riding conditions. Pre-formed bushings, which distribute the load evenly, resulting in even greater chain life. Gold colored side plates. Copper colored rollers. Average tensile strength 20,500N (4,608 Lbs.) |
