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250cc CVT Transmission Performance Upgrade - Level 1

250cc CVT Transmission Performance Upgrade - Level 1
250cc CVT Transmission Performance Upgrade - Level 1
RETAIL MSRP: $390.00
You Save: $41.00 (11 %)
Part No: CN250L1


* denotes required field

Dr. Pulley Sliders*
Clutch Torque Spring*
Drive Belt*
Buggy Engine Model*
250cc CVT
CVT Transmission Performance Package
CVT Transmission Performance Upgrade for CN250 Buggy
Fits Roketa, BMS, Joyner, Kandi, Kinroad, Runmaster, Carter, JCL, Dazon and all CN250 Engines 
Save $$$ by purchasing this upgrade package   
Variator, Sliders and Spring 
Includes the following components:
  • Dr. Pulley Performance Variator
  • Set of 6 Sliders (choose weight above)
  • Main Clutch Red Shorty Torque Spring
  • Kevlar Drive Belt (optional)
The components in this kit are relatively easy to install by the customer
This Upgrade Package takes the guess work out of selecting individual parts for your 250 BUGGY. We have packaged all of the correct parts you need to perform this upgrade for a 250 Buggy. If you have a CN250 Buggy, this kit will work for you. Don't order scooter parts if you have a Buggy!
The best racing variators available on the market for your CN250. Racing Variators increase both Take-off and Speed. We have included a set of (6) Dr Pulley Slider Weights for this Variator made of high quality carbon and nylon. They slide in and out of this High Performance Variator in order to increase and improve the performance. This will allow lower gearing to wind out more giving you a substantial increase in low end power. You'll achieve better acceleration, greater gas mileage, less vibration and no roller clanking. Upgrade your stock CN250 for a smoother ride. Select your Sliders in Product Options above
This Racing Variator from Dr. Pulley is precision engineered to increase performance over stock variators. Specially coated ramp plates create less friction on the Sliders, allowing them to adapt more rapidly to changing driving conditions and resulting in less wear

This Dr. Pulley Variator comes with the Variator, (6) Sliders, Fan Plate, and Center Boss Pin
  • Variator
  • Fan Backplate
  • Center Boss Pin
  • (6) Dr. Pulley Performance Sliders
We have selected the Red "SHORTY" High Performance Main Clutch Torque Spring for this kit. The Red Shorty Spring engages at 2000rpm which is the same as the Full Length Blue Spring. The Red Shorty works well with this kit 
Main Clutch Spring    
The clutch Main Torque Spring keeps tension on the belt and counters the force of the slider weights. Along with the slider weights, it controls the shift points.
Replacing the stock clutch Torque Spring is an inexpensive upgrade that can increase the responsiveness of your Buggy.

The main torque spring makes it harder for the variator to draw the belt inward on the clutch. This keeps the buggy in a lower gear ratio at higher RPMs, and "downshifts" faster when decelerating so you're in a lower ratio when you hit the gas again.

A stiffer main spring shifts the CVT system faster, giving you more power when coming out of a corner or going uphill. Even better, a clutch torque spring does not affect your top speed!

Note: Using lower weight rollers (15-16g) with this spring can affect your top speed due to the rollers not being heavy enough to fully overcome the spring's tension.
We recommend 17 - 19 gram sliders
Add the Kevlar Drive Belt in Product Options above  to complete this kit
Video on How to install this Kit 
 MRP Upgrades on a 250 Buggy
Disclaimer: Performance Parts affect the reliability of your go kart and are designed for racing purposes only. Some machining and/or modifications may be necessary to install performance parts on your particular go kart. Manufacturers make modifications to their products from time to time and models may differ from year to year. The above specified models serve as a guideline only. Improper installation by an untrained mechanic can result in serious injury of death. Any damages, direct or incidental to a rider or property due to the installation of any performance parts are the responsibility of the purchaser. GokartsUSA makes no warranty as to performance parts, express or implied, including, but not limited to any implied warranties of merchantability or fitness for a particular purpose. Performance parts are not returnable for any reason. The logos and trademarks of each respective manufacturer belong to each manufacturer and they do not endorse or promote GokartsUSA in any way. GokartsUSA does not make any claim to represent or be endorsed by any of these manufacturers. All performance parts are not road legal! Closed circuit, off-road race, or exhibition use only!

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