STM Powersports

STM Powersports Specializing in Custom Machining and High Performance CVT Clutching Parts, & Accessories for Snowmobiles, ATV's, UTV's and More. Welcome to Supreme Tool inc.

Hours
9AM to 4PM
Monday - Friday
No Tech Calls On Friday's


ESTABLISHED 1991

Supreme Tool and Machine Inc. is a manufacturer of custom machined components and assemblies. We can design and build a product from a customers conceptual idea to a completed assembly or component . Our capabilities offer production of parts in various quantities, from single prototype to high volume production. We have the experience and expertise and are equipped to perform any service from fabrication to the finish of close tolerance machining. Our specialty is versatility! Supreme Tool is a premiere manufacturer of CVT clutches and components for many applications around the world. STM Clutches hold many World records for snowmobiles on ice, grass and asphalt- please visit the gallery for results.

09/12/2026

Great job guys!!!

For the 🏆 Great job!!!👏
08/22/2026

For the 🏆
Great job!!!👏

660ft SNOWMOBILE WORLD RECORD
Brainerd NHRA Nationals
4.180 et
Anthony Mini
Baynes Motorsports
Hypersports
Precision Turbo & Engine
STM Powersports
Link ECU
Print Lab Wraps
TotalSim Ltd.
Cometic Gasket, Inc.
CP-Carrillo
Precision Racing Suspension

Got CFMOTO Z10 with stock clutches, tunes or bigger tires? We Have THE ANTIDOTE. Don't let stock clutch limitations ruin...
08/08/2026

Got CFMOTO Z10 with stock clutches, tunes or bigger tires? We Have THE ANTIDOTE.

Don't let stock clutch limitations ruin your ride. Cure your performance woes with The Antidote Stock Clutch Kit from STM Powersports! Engineered specifically for the CFMOTO Z10, this kit is the ultimate remedy for inconsistent shifting, sluggish throttle response, and weak power transfer especially with tuned machines or machines with larger than stock tires.

Upgrade your factory setup with our premium, high-performance components designed to maximize your machine's potential:

All Billet Aluminum Helix Made In Michigan, USA: Delivers superior strength, durability, and enhanced heat dissipation.
Custom Billet Steel Hub: Converting the stock secondary into a torsion adjustable spring application. Optimized shift mapping for immediate, aggressive power delivery.
Heavy-Duty Spring & Rollers: Precision-tuned to eliminate internal friction, reduce wear, and provide seamless engagement and power transfer.

Inject some serious adrenaline into your Z10 and experience unmatched reliability on the trail.

THE ANTIDOTE STOCK CLUTCH KIT
SKU: 9001053

Ready to fix your stock clutch for good?
https://stmpowersports.com/the-antidote-z10-secondary-torsional-conversion-spring-and-helix/ to grab yours and get back to dominating the dirt.

CFMOTO Z10 Owners, Take Your Ride to the Next Level! Stop settling for less than optimal performance. It's time for an u...
08/07/2026

CFMOTO Z10 Owners, Take Your Ride to the Next Level!

Stop settling for less than optimal performance. It's time for an upgrade that can actually keep up with your machine's potential. We are thrilled to introduce our brand-new, all-billet Primary & Secondary Clutch Assemblies, precision-engineered specifically for the CFMOTO Z10.

This is the Ultimate Durability you've been waiting for. Say goodbye to power fade, inconsistent shifts, and premature wear. We’re delivering unmatched performance and reliability.

What makes our clutches different?
- Full Billet Construction: Maximizes strength, reduces weight, and improves heat dissipation.
- Precision Tolerances: Eliminates internal friction and provides seamless power transfer.
- Trail-Tested Durability: Designed to handle the abuse of aggressive off-road environments.

- PRIMARY CLUTCH ASSEMBLY
SKU: 9001050

- SECONDARY CLUTCH ASSEMBLY
SKU: 9001051

Transform your ride today. We have the parts you need for the performance you deserve.

https://stmpowersports.com/z10/ to shop now and dominate the trail with confidence.

Kawasaki Teryx H2 Owners, Unleash the Power!Stop settling for less than optimal performance. It's time for an upgrade th...
08/07/2026

Kawasaki Teryx H2 Owners, Unleash the Power!

Stop settling for less than optimal performance. It's time for an upgrade that can actually keep up with your machine's potential. We are thrilled to introduce our brand-new, all-billet Primary & Secondary Clutch Assemblies, precision-engineered specifically for the Kawasaki Teryx H2.

This is the Ultimate Durability you've been waiting for. Say goodbye to power fade, inconsistent shifts, and premature wear. We’re delivering unmatched performance and reliability.

What makes our clutches different?
- Full Billet Construction: Maximizes strength, reduces weight, and improves heat dissipation.
- Precision Tolerances: Eliminates internal friction and provides seamless power transfer.
- Trail-Tested Durability: Designed to handle the abuse of aggressive off-road environments.

PRIMARY CLUTCH ASSEMBLY
SKU: 6001050

SECONDARY CLUTCH ASSEMBLY
SKU: 6001048

Transform your ride today. We have the parts you need for the performance you deserve.

https://stmpowersports.com/teryx-h2/ to shop now and dominate the trail with confidence.

Want to see how to wake up a Gen 3 Can-Am Outlander?Our guy   just dropped a brand new video, and he’s running our full ...
08/06/2026

Want to see how to wake up a Gen 3 Can-Am Outlander?

Our guy just dropped a brand new video, and he’s running our full STM Rage 3 Velocity Primary and Secondary Clutch setup. Getting the horsepower is one thing, but transferring it to the tires without blowing belts is where we come in.

Check out the video to see the throttle response and performance difference for yourself. Let us know in the comments what you think of Kyle’s Outlander build!

Watch the full ride here: https://www.youtube.com/watch?v=OfKXdjQrHZ0

Get an exclusive 15% discount on Saily eSIM data plans! Go to saily...

07/10/2026

Something new is on the horizon.
We're pushing limits and refining details. Our team is deep in the testing phase, putting a brand-new concept through its paces in the wild.
The next generation of STM clutches is almost here. Stay tuned for a revelation.

Specializing in Custom Machining and High Performance CVT Clutching Parts, & Accessories for Snowmobiles, ATV's, UTV's and More.

07/02/2026

Address

5409 Perry Drive
Waterford Township, MI
48329

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 3:30pm

Telephone

+12486738408

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