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Progressive or reverse helix

WootTootViper

Extreme
Joined
Jan 7, 2018
Messages
84
Age
26
Location
Illinois
Country
USA
Snowmobile
2014 Viper MPI turbo, taller gearing, Ulmer clutch and tuning.
What’s the pros and cons and thought processes behind choosing a helix. I’m reading about them for turbo sleds and I see some are reverse and some are progressive... what’s the difference?
 



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