STM Polaris RZR XP 900 RAGE 3RS Primary Clutch
STM Polaris RZR XP 900 RAGE 3RS Primary Clutch
STM Polaris RZR XP 900 RAGE 3RS Primary Clutch


STM Polaris RZR XP 900 RAGE 3RS Primary Clutch

Sale price$1,265.00 USD


New improved two-way bearing design. The main shaft bearing is now smaller with a 47mm outside diameter allowing a lower initial take off ratio than our past design. Allows tighter belt deflection, transmission shifting and belt chirp.

The primary is designed to use Polaris ATV springs providing a wide variety of spring rates to choose from.

The Rage 3 is calibrated with a spring and set of our own adjustable SUPERTIP CAM ARMS. Each clutch is assembled and set up to run the Polaris OEM belt (stock belt for each machine). Uses the stock primary bolt. 

Item numbers 1001649 Primary Clutch Vice Holding Tool or 1001070 Primary Clutch Holding Tool, 1001072 STM & Arctic Cat Spider Nut Socket Tool for 1995-2009  and either 1001020 STM Rage 3 & 6 Spider Tool, or 1001032 STM Rage 4 & 8 Spider Tool(depending rage number) is required when removing or installing the spider. Works on all STM primary clutches. Sold separately.

When ordering use this guide to help you pick options

Choose a Model – EX: RZR pre-2010, RZR 2011-2013, XP……

Choose Rage # - Pick which arm clutch you want, Rage 3 your basic replacement clutch, rage 6 is most popular dual stage clutch that will handle most applications even low boost turbo, Rage 8 is for higher HP applications that require heavy cam arms.

Conversion Kit - You will choose the 1001321 when running the STM weights. Or choose the 1001323 if you want to run a Polaris style weight for a ¼ pin.

Choose a spring - The most popular spring is the PATV9 gold that will get you engagement around 2000 to 2500 RPM the red, orange, white, and purple will have a higher engagement with purple being the highest. The bright green is a lower rate spring will engage around 1500 RPM or choose none if you want to use your own spring.

Choose weights – For the RZR with a Rage 3 choose 45ATVX3, Rage 6 Choose the 45ATVX, RZR with a Rage 8 choose 45ATVX, For the stock XP with a Rage 6 choose 45ATVX, XP Turbo with Rage 6 choose 50ATVX, XP Turbo with Rage 8 choose 45ATVX

Choose Engine HP – Let us know about your bike. Is it naturally aspirated/stock? Big bore kit? Does it have a turbo? If you have a turbo-how much boost? This gives us an idea of how to set the weights up.

KEEP IN MIND WE CAN ONLY GET YOU CLOSE WITH WEIGHT SET UP. Everyone's riding style is different so it’s up to the customer to do the fine tuning!

***To properly build this to the correct specifications for your vehicle, we will need detailed information about your vehicle. Expect a follow up email requesting more details after purchase.***