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CVT Variator GY6 139QMB/QMA 4-stroke
CVT Variator GY6 139QMB/QMA 4-stroke
CVT Variator GY6 139QMB/QMA 4-stroke
CVT Variator GY6 139QMB/QMA 4-stroke
CVT Variator GY6 139QMB/QMA 4-stroke
CVT Variator GY6 139QMB/QMA 4-stroke
CVT Variator GY6 139QMB/QMA 4-strokeCVT Variator GY6 139QMB/QMA 4-strokeCVT Variator GY6 139QMB/QMA 4-strokeCVT Variator GY6 139QMB/QMA 4-strokeCVT Variator GY6 139QMB/QMA 4-strokeCVT Variator GY6 139QMB/QMA 4-stroke
MotoForce
Article no.: OE-GY6BT12012

CVT Variator GY6 139QMB/QMA 4-stroke

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Description

GY6 CVT

Inexpensive complete CVT / Variator, genuine GY6 spare part. Includes variator, ramp plate, drive face, fan pulley, guides, spacer plate, and 16x13 mm roller weights. Supplied as shown.

Installing a new variator is recommended if you notice flat spots during acceleration, often caused by worn bushings or grooved pulley faces (belt wear marks).

Note: Supplied with relatively heavy roller weights (approx. 8.3 g). For better throttle response and acceleration, we recommend switching to slightly lighter CVT weights.

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Manufacturer's Details
Streetbuzz Distribution GmbH
Brachalmet 4
66271 Kleinblittersdorf
Germany
Notes and Safety

scooter CVT

Modern scooters are equipped with a continuously variable transmission, the so-called CVT, also called variator.

CVT Parts:

  • Front pulley, movable. It contains the variator weights and has a special shape with an inclined surface to allow the V-belt to move freely up and down.
  • Ramp plate: Holds the weights in place.
  • Variator sleeve: Serves as a bearing for the variator, which moves axially back and forth, i.e., opens and closes.
  • CVT roller weights: Adjustment weights that play a critical role in function and performance.

original, Sport and Oversize CVTs

  • Original: Original or OEM quality CVTs are equipped with a restrictor to limit the speed to 45km/h. There are riders who remove the restrictor to derestrict their scooter and unleash the full performance without restrictions.
  • Sport: Sport CVTs are lighter than the original and are characterized by special angles and a special coating, which increases the top speed, but especially acceleration.
  • Oversize: Based on the same principle as the Sport CVT, but has larger dimensions. With an oversize / overrange vario, the performance of the scooter can be increased even further.

You should also always replace the V-belt when replacing the CVT or go for a complete CVT kit.

How to install a CVT transmission ?

Technical details
CVT Variator GY6 139QMB/QMA 4-stroke
Article no.OE-GY6BT12012
EAN4250362412294
Weight0,68 kg
BrandMotoForce
Product typeCVT
Roller size16 x 13 mm
Roller weight5,6 gr

Spare Parts

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FB
Freddy B.
Riding style:
Always legal - I'm in no hurry
Usage:
Daily
Experience:
Experienced rider
Age:
14-25
Product quality:
Value for money:
Expectations met:
Recommendation:
variateur
bon rapport qualite prix
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