STM Inner Primary Sheave / ProR Category_Default Category/SLED/Polaris/IQ 700/Engine \/ Exhaust Take Control of Your Shift:

Take Control of Your Shift: Peak RPM & Maximized Power

Reduction in slippage during the highest levels of torque

Simply bolt on and go

The screen is designed to withstand harsh elements and has an IP67 rating

and wheel dyno to develop tunes to perfectly match our hardware upgrades to maximixe performance

STM Inner Primary Sheave / ProR Category_Default Category/SLED/Polaris/IQ 700/Engine \/ Exhaust Take Control of Your Shift:Replacement fixed sheave for the stock Pro R (4 Cylinder Models) Fixed sheave and post only Made from all billet components. No need to send in components from your stock primary. This is a drop in replacement for the OEM Primary clutch