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1000 RPM clutch main spring for your GY6 clutch.

Yellow clutch arm springs for your stock GY6 clutch. Set of 3.

Yellow clutch main spring for your GY6 clutch.

Red clutch main spring for your GY6 clutch. 2000 RPM spring.

Red clutch arm springs for your stock GY6 clutch. Set of 3.

Use the right tool for the job!

This clutch arm spring install tool is the perfect size for removing and installing the clutch arm springs on your GY6 clutch!

Dr Pulley HIT Clutch for GY6 150cc. Comes with 6 sets of springs for extra tuning ability!

Clutch Bell sold separately.

Dr Pulley HIT Clutch and Bell for GY6 150cc. Comes with 8 sets of springs for extra tuning ability!

GY6 High Performance Sliders 18x14 -
Available in 9g, 10g, 11g, 12g, 13g, 14g, 15g, and 16g

Click picture or title to choose available weights

High performance racing variator from Dr Pulley - Highly recommended

Limited quantities!

Koso racing clutch for GY6.

High Performance clutch bell for GY6 150cc. Rough inner surface gives you excellent clutch engagement!

Koso high performance variator, yellow main clutch spring, and rollers or sliders in one package!

Big performance gain over stock with this package!

The Level 2 package upgrades you to the best selling Dr. Pulley racing variator, a yellow main clutch spring, and Dr. Pulley sliders!

Optional red main clutch spring also available.

New Package lineup!

The Level 3 package adds the very high performing Koso clutch and Koso racing variator, a yellow or red main clutch spring, high performance clutch bell, and your choice of sliders!

The Level 4 package adds a Dr Pulley HIT clutch to the package in addition to the Dr. Pulley racing variator, a yellow or red main clutch spring, and your choice of Dr. Pulley slider weights!

The Level 5 package has a complete CVT makeover!

A Dr Pulley HIT clutch, performance clutch bell, Dr. Pulley racing variator, a yellow or red main clutch spring, your choice of Dr. Pulley sliders, and a Gates kevlar CVT belt!

Highest quality Gates Powerlink CVT drive belt for GY6 engines. Size 743/20/30.

Other belt sizes are available.

Stock replacement complete clutch assembly for GY6 engines.

Koso performance variator for GY6.

Great low-cost upgrade!

Replacement OEM variator fan plate for GY6 150cc CVT system.

On Special!

Performance rollers for GY6 150cc variators. Colors may vary from picture.

Click picture or title to see available weights

Now offering Dr Pulley Roller weights in some sizes!

Performance rollers for GY6 150cc variators. Colors may vary from picture.

Click picture or title to see available weights

Now offering Dr Pulley Roller weights in some sizes!