2020 Polaris RZR Pro XP Shift-Tek Progressive HelixThe helix lives within the secondary clutch. The helix helps apply pressure to the CVT drive belt. There are two types of helixes, straight and progressive. Straight helixes will have the same angle cut the whole duration. A progressive helix with have two different cuts for different shift points. Different helixes with more aggressive or less aggressive angles can adjust the pressure on the belt and shift points. If you get too aggressive with the

uninterrupted airflow

Adjusting EVP BOV Instructions

All necessary hardware included for direct factory replacement

Polaris Pro XP

Increased RPMs

versatility & belt life

This has to do with the angle of the arms combined with the weight difference of the rollers

keep in mind those other variables that play a part in real-world applications

EVP XR Series Custom age 625 Head Stud Kit 9MM-10MM

What's new

Holds 20% more coolant volume than stock

this can also transfer energy to the rear upper A-arm mounting plate to help spread the load and increase strength