#420 Sprocket Tuner Pack
CA$199.99Price
The Tuner Pack includes 4X #420 Sprockets of various sizes to help you find your perfect gear ratio.
Includes: 40T, 48T, 54T and 60T sprockets with the 6 bolt on 5.25" bolt circle with a 4.563" diameter center hole diameter.
When paired with the Big Block PowerPack's 40 series gearbox and it's built in 2:1 reduction ratio and 16T drive sprocket, you will have gear ratio choices from 5:1 - 7.5:1.