Browse Categories
Mailing Lists
Receive Updates, Special Offers and Coupons
Torque Converters Small Engines California Legal Buggies Safety Information Yamaha 400 5-speed VOTED BEST IN ITS CLASS!! best toys for kids Kikker Hardknock Mini Chopper GY6 Performance Parts CN250 Performance Parts

300cc Performance Parts

visit our MRP website Race Karts Micro Mini BMS 400 BMS 1000 2-Seater BMS 1000cc 4-Seater Rhino Rough Terrain Vehicle Kinroad Raptor 250 Kinroad Explorer 150 JCL Titan 250 BMS Powerbuggy 300 Chery 1100cc MPI, 4-Speed, HOT HOT HOT BMS 1100 5-SPEED Fully Loaded Gokarts with Bodies Old School Gokart Bandit Minibike Rokon Trail Breaker Moped Scooters, over 50 models, click here see our Helmets cool T-Shirts custom Decals
  order info
  
     
 
 
Browse by Manufacturer
Gokart & Minibike Parts Catalog

Dr. Pulley 250cc CVT Transmission Performance Upgrade - Level 1

<<(PREVIOUS) (NEXT)>>
Sale Price:
IN STOCK
Manufacturer: MRP
Part No: Dr. Pulley CVT Upgrade

PRODUCT OPTIONS

* denotes required field

Dr. Pulley Variator*
Dr. Pulley Sliders*
Main Clutch Torque Spring*
Buggy Engine Model*
250cc CVT
Dr. Pulley Transmission Performance Package
LEVEL 1 
 
CVT Transmission Performance Upgrade for CN250 Buggy
     
Fits Roketa, BMS, Joyner, Hammerhead, Sahara, Carter, JCL, Dazon, Tomberlin, Baja, Kinroad and all CN250 Engines 
     
Save $$$ by purchasing this upgrade package   
Variator, Sliders and Spring 
Includes the following components:
  • Dr. Pulley Performance Variator
  • Dr. Pulley 19 Gram Sliders (set of 6)
  • Main Clutch Torque Spring
    • Choice of Red Shorty or Blue Regular
EASY INTALLATION:
The components in this kit are relatively easy to install by the customer
 
CORRECT PARTS:
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. MRP carries over 4000 parts for many Scooters and engine types. We get many  calls from customers saying that they ordered the wrong parts elsewhere. Don't order scooter parts if you have a Buggy!
 
Dr. PULLEY RACE VARIATOR
Racing Variators increase both Take-off and Speed. We have included a set of (6) 19 Gram Sliders for this Variator. This will allow lower gearing to wind out more giving you a substantial increase in low end power.
Dr Pulley Variator Kit  
 
Dr. Pulley products are some of the best on the market today!

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, Fan Plate, and Center Dowel Pin
    
  • Variator
  • Fan Backplate
  • Center Drows Pin
  •  
    Outside Diameter: 127mm
    Inside Diameter (for spline) 26.20mm
     
    Dr. PULLEY SLIDERS
    We have included a set of (6) 19 Gram Sliders with this kit. This weight should provide optimum performance when installed on your Dr. Pulley Performance Variator
    Dr. Pulley Sliders
       
     
    MAIN CLUTCH TORQUE SPRING
    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. You can select the Blue Spring in Product Options above if you prefer. 
    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 (15-17g) with this spring can affect your top speed due to the rollers not being heavy enough to fully overcome the spring's tension.
     
    This is why we have included 19 Gram Sliders with this kit
     
      
    Video on How to install this Kit 
     
    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!

    Product Reviews

    (0 Ratings, 0 Reviews)
    Search
    view and edit your shopping cart
    Shopping Cart
    Your cart is empty.
        

    security information
    click on a manufacturer below
    Dune Buggies, Dirt Bikes and ATVs BMS Dune Buggies, ATVs and Scooters see Kinroad products Minichoppers made in USA Karts with Bodies Gokarts and Minibikes made in USA Trail Breaker Minibikes Gokarts made in USA

    Knightmare Minibikes

    Hensim Motorsports Sliders and Clutches Torque Converters and Clutches

    Hammerhead Performance Parts

    SuperSport Mini Chopper Jinlun Choppers Yamaha Dune Buggies rough terrain vehicles Trophy Karts Dirt Bikes, Dune Buggies and ATVs Taco 22 made in USA
                 Mini Bikes
    Sand Cars

    Gokarts and Scooters by Carter made in USA

    Kits and Parts made in USA since 1960
    Products
    Turbo Kits Gokart Kits Minibike Kits Motorized Bicycles
    Search Shopping Lists
    Search for a Shopping List, Wish List or Gift Registry
    A GIFT REGISTRY is great for Birthdays, Graduations or Special Occasions. Let your Friends and Family know what you want and they can all chip in for your gift!
    FREE Gift Registry