420 colored Motorcycle Chain | Standard Roller Drive Chain | By BLR Tuning | For Small Motorcycles, Electric Dirt Bikes, ATVs, and Dirt Bikes420 Colored Motorcycle Chain Standard Roller Drive Chain By BLR Tuning For Small Motorcycles, Electric Dirt Bikes, ATVs, and Dirt Bikes Lightweight 420 Pitch Chain Built for Reliable Power Transfer At PM Print Lab we work with a lot of riders upgrading sprockets, dialing in gearing, or simply replacing worn drivetrain parts. One of the most common chain sizes across small motorcycles and electric dirt bikes is the 420 pitch chain, and this version