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420 R1 WORKS CHAIN
- A mini version of Renthal’s 520 R1 chain for today’s high-powered mini racing machines
- Shot-peened alloy steel side plates
- Ultra-high 4,608 lb. tensile strength
- Chromised bearing pins resist wear
- Pre-formed bushings distribute power loads evenly for greater chain life
- Gold-colored side plates; copper-colored rollers
- Most perfectly matched chain for Renthal sprockets
