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MRP Racing Clutch GY6 50cc QMB139

MRP Racing Clutch GY6 50cc QMB139
RETAIL MSRP: $139.00
HALLOWEEN SALE: $109.90
You Save: $29.10 (21 %)
IN STOCK
Part Number: N-MP-03529
MFG: MRP
Item No: 1335
MRP Performance Racing Clutch for GY6 50cc QMB139 4-Stroke Scooter Engine. Includes 3 sets of springs
 
This Racing Clutch can dramatically increase both power and speed by up to 40%
  
The QMB139 is also known as the GY6 50cc Engine. This engine is used on many popular Asian made scooter models including the following models
  • Kymco
  • BMS
  • Kinroad
  • Roketa
  • Zongshen
  • Baja
  • Strada
  • Jalon
  • Sunl
Outside Diameter: 106mm
 
Click Here to see a
 
 
Our customers ask us why is it essential to upgrade the clutch. The reason is because the stock clutches are simply not very good. In some Scooters you can see an increase of up to 40% in power just by changing the stock clutch. Our top dealers always keep performance clutches in stock and know that racers change these at least once a year or after two or three races depending on their use.
 
A clutch works using a steel drum driven from the rear pulley that spins round a set of clutch shoes (this padding comes in different non-asbestos materials and different sizes). These shoes are pivoted at one end and sprung at the other. Once spinning, the centrifugal force isn't strong enough to move the shoes against the springs, but as the RPMs increase, the shoes are thrown outwards towards the drum itself. By changing the clutch, you can increase the power and revs of the unit. You can also adjust the revs by changing the clutch springs. You can also purchase an adjustable clutch which allow you to change the setting depending on the type of use (racing vs. everyday street needs.)
 

Clutch and Variator Installation
 
 
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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