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CVT and Drive Belts

(421 products)
Scooter Variators CVT Kits CVT Weights Drive Belts Pulleys CVT Accessories
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2Fast Airsal Aprilia Athena Bando Dayco Doppler GY6 Malossi MotoForce MotoForce Racing Naraku Peugeot Piaggio Polini RMS Stage6 Stage6 R/T Standard Parts Top Performances Yamaha
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Malossi
CVT Malossi MHR Multivar Yamaha Giggle 50cc 4-stroke
Article no.: M5113603

CVT Malossi MHR Multivar Yamaha Giggle 50cc 4-stroke

67,00 €
In stock
RRP
87,00 €
-23% Discount
Sale
Malossi
CVT Variator Malossi MHR Baotian Eco Bike 50cc 4-stroke
Article no.: M5113139

CVT Variator Malossi MHR Baotian Eco Bike 50cc 4-stroke

68,00 €
In stock
RRP
87,00 €
-22% Discount
Sale
RMS
Variator Weights RMS (x6)
Article no.: A_GALETSRMS
3

Variator Weights RMS (x6)

4,50 €
In stock
12,00 €
-63% Discount
Piaggio
Drive Belt original Piaggio after 1998 short
Article no.: OE-PIA82645R

Drive Belt original Piaggio after 1998 short

16,50 €
In stock
Piaggio
Variator Fanwheel plastic Piaggio NRG / Typhoon after 1998
Article no.: OE-PIA845611

Variator Fanwheel plastic Piaggio NRG / Typhoon after 1998

5,00 €
In stock
Piaggio
Front Pulley Piaggio NRG / Typhoon after 1998
Article no.: OE-PIA479561

Front Pulley Piaggio NRG / Typhoon after 1998

22,50 €
In stock
Piaggio
Drive Belt original Piaggio after 1998 long
Article no.: OE-PIA436864

Drive Belt original Piaggio after 1998 long

20,50 €
In stock
Yamaha
Drive Belt original Yamaha Aerox
Article no.: OE-MAL5RNE76411000
1

Drive Belt original Yamaha Aerox

28,50 €
In stock
Top Performances
Transmission / CVT Kit Top Performances TPR Piaggio long
Article no.: T9931300

Transmission / CVT Kit Top Performances TPR Piaggio long

92,50 €
In stock
RRP
100,00 €
-8% Discount
Malossi
Drive Belt Malossi X K Belt Overrange Yamaha Aerox (long)
Article no.: M6115822

Drive Belt Malossi X K Belt Overrange Yamaha Aerox (long)

55,00 €
In stock
Sale
Malossi
Drive Belt Malossi X K Belt Overrange Piaggio long
Article no.: M6115668

Drive Belt Malossi X K Belt Overrange Piaggio long

48,00 €
In stock
RRP
63,00 €
-24% Discount
Sale
Malossi
CVT Overrange Malossi MHR Furia Rossa Minarelli long / Aerox
Article no.: M6115821

CVT Overrange Malossi MHR Furia Rossa Minarelli long / Aerox

392,00 €
In stock
RRP
476,00 €
-18% Discount
Sale
Malossi
CVT Kit Overrange Malossi MHR La Furia Rossa Piaggio short
Article no.: M6115780

CVT Kit Overrange Malossi MHR La Furia Rossa Piaggio short

449,00 €
In stock
RRP
537,00 €
-16% Discount
Malossi
Drive Belt Malossi X K Belt Overrange Piaggio Zip / Vespa
Article no.: M6115104

Drive Belt Malossi X K Belt Overrange Piaggio Zip / Vespa

47,00 €
In stock
RRP
63,00 €
-25% Discount
Sale
Polini
Shells for variator tuning kit Polini
Article no.: U242_CAPUCHONS_POLINI

Shells for variator tuning kit Polini

8,00 €
In stock
Polini
Variator Weights Polini (x9)
Article no.: U242_GALETSUPERSPEED

Variator Weights Polini (x9)

5,70 €
In stock
Polini
Variator Weight Tuning Kit Polini
Article no.: BOITEGALETSPOLINI

Variator Weight Tuning Kit Polini

17,00 €
In stock
20,00 €
-15% Discount
Malossi
CVT Variator Malossi Multivar Piaggio / Vespa 50ccm 4T
Article no.: M5111597

CVT Variator Malossi Multivar Piaggio / Vespa 50ccm 4T

70,00 €
In stock
RRP
94,00 €
-26% Discount
Sale
Polini
Drive Belt Evo Overrange Minarelli long / Morini
Article no.: U248.040.2

Drive Belt Evo Overrange Minarelli long / Morini

59,00 €
In stock
RRP
70,00 €
-16% Discount
Malossi
CVT Malossi Multivar GY6 / SYM / Peugeot / Kymco 50cc 4T
Article no.: M5113790

CVT Malossi Multivar GY6 / SYM / Peugeot / Kymco 50cc 4T

68,00 €
In stock
RRP
87,00 €
-22% Discount
Sale
GY6
CVT Variator OEM quality GY6 139QMB/139QMA
Article no.: OE-GY6BT12278

CVT Variator OEM quality GY6 139QMB/139QMA

10,00 €
In stock
14,00 €
-29% Discount
Sale
Polini
CVT Polini Hi-Speed Piaggio 4T 50 iGet / Vespa Primavera
Article no.: P241.773

CVT Polini Hi-Speed Piaggio 4T 50 iGet / Vespa Primavera

72,50 €
In stock
RRP
85,50 €
-15% Discount
Malossi
Drive Kit Malossi MHR Overrange Piaggio Zip / Vespa ET2
Article no.: M6119040

Drive Kit Malossi MHR Overrange Piaggio Zip / Vespa ET2

308,00 €
In stock
RRP
386,00 €
-20% Discount
Malossi
Drive Kit Malossi MHR Overrange Minarelli short / Yamaha Jog
Article no.: M6118885

Drive Kit Malossi MHR Overrange Minarelli short / Yamaha Jog

428,00 €
In stock
RRP
537,00 €
-20% Discount
Malossi
Spare Parts Kit Malossi MHR Multivar for MHR Team crankshafts
Article no.: M2019248

Spare Parts Kit Malossi MHR Multivar for MHR Team crankshafts

34,00 €
In stock
RRP
52,00 €
-35% Discount
Sale
Polini
V-Belt Evolution Aramid Piaggio Zip / Vespa 1994 - 2000
Article no.: U248.031.3

V-Belt Evolution Aramid Piaggio Zip / Vespa 1994 - 2000

57,00 €
In stock
RRP
67,00 €
-15% Discount
Doppler
CVT Doppler S1 Evo Minarelli
Article no.: CGN509128

CVT Doppler S1 Evo Minarelli

55,00 €
In stock
69,00 €
-20% Discount
Sale
Doppler
CVT Doppler SX86 Minarelli
Article no.: CGN509125

CVT Doppler SX86 Minarelli

64,00 €
In stock
80,00 €
-20% Discount
Sale
Standard Parts
CVT Yamaha / MBK 50cc 4T
Article no.: CGN532438

CVT Yamaha / MBK 50cc 4T

19,50 €
In stock
2Fast
Half Pulley 2Fast CNC Aluminium Piaggio
Article no.: 2FASTPULFIX01P

Half Pulley 2Fast CNC Aluminium Piaggio

77,00 €
In stock
RRP
90,00 €
-14% Discount
Sale
Polini
CVT Variator Polini Speed Control Kymco 50cc 4T / GY6
Article no.: U241.647

CVT Variator Polini Speed Control Kymco 50cc 4T / GY6

68,00 €
In stock
RRP
80,00 €
-15% Discount
Malossi
CVT Variator Malossi Multivar Piaggio before 1998
Article no.: M518648

CVT Variator Malossi Multivar Piaggio before 1998

103,00 €
In stock
RRP
106,00 €
-3% Discount
Malossi
CVT Malossi Multivar 2000 Honda Vision 50 4T
Article no.: M5115209

CVT Malossi Multivar 2000 Honda Vision 50 4T

62,00 €
In stock
RRP
80,00 €
-23% Discount
Sale
Malossi
Drive Belt Malossi X K Belt Piaggio Zip 50 4T
Article no.: M6116424

Drive Belt Malossi X K Belt Piaggio Zip 50 4T

25,00 €
In stock
26,00 €
-4% Discount
Sale
Malossi
Drive Belt Malossi X Special Belt Honda Zoomer 50
Article no.: M6117248

Drive Belt Malossi X Special Belt Honda Zoomer 50

28,00 €
In stock
Sale
Malossi
Drive Belt Malossi X K Belt Honda Vision 50 4T
Article no.: M6116671

Drive Belt Malossi X K Belt Honda Vision 50 4T

32,00 €
In stock
RRP
42,00 €
-24% Discount
Sale
Polini
CVT Boss Polini 14.8x22x50 DLC coated
Article no.: P935.101

CVT Boss Polini 14.8x22x50 DLC coated

25,50 €
In stock
RRP
29,00 €
-12% Discount
Polini
CVT Boss Polini 16x22x50 DLC coated
Article no.: P935.100

CVT Boss Polini 16x22x50 DLC coated

26,00 €
In stock
RRP
29,00 €
-10% Discount
Polini
CVT Weights Polini (x6)
Article no.: P242.ROLLERWEIGHTS

CVT Weights Polini (x6)

8,00 €
In stock
18,00 €
-56% Discount
Standard Parts
CVT Sliders GY6 / Kymco / Peugeot (x3)
Article no.: SP-86475

CVT Sliders GY6 / Kymco / Peugeot (x3)

2,10 €
In stock
Standard Parts
CVT Sliders 4T GY6 50cc (x3)
Article no.: SP-89922

CVT Sliders 4T GY6 50cc (x3)

1,40 €
In stock
Polini
Drive Belt Evo Yamaha Aerox (long)
Article no.: U248.040

Drive Belt Evo Yamaha Aerox (long)

36,00 €
In stock
RRP
42,00 €
-14% Discount
Polini
Drive Belt Evo Aerox 4T / China 2T / Minarelli short
Article no.: U248.030

Drive Belt Evo Aerox 4T / China 2T / Minarelli short

29,00 €
In stock
RRP
44,00 €
-34% Discount
Sale
Standard Parts
CVT Restrictor Ring 22x27x8mm Morini
Article no.: SP-90613

CVT Restrictor Ring 22x27x8mm Morini

3,20 €
In stock
Standard Parts
CVT Restrictor Ring 22x27x6mm Morini
Article no.: SP-90612

CVT Restrictor Ring 22x27x6mm Morini

2,90 €
In stock
Standard Parts
CVT Restrictor Ring 22x27x5mm Morini
Article no.: SP-90609

CVT Restrictor Ring 22x27x5mm Morini

2,90 €
In stock
Standard Parts
CVT Restrictor Ring 22x27x2mm Morini
Article no.: SP-90607

CVT Restrictor Ring 22x27x2mm Morini

3,10 €
In stock
Polini
Transmission / CVT Kit Polini Hi-Speed Piaggio long
Article no.: U241.672.2

Transmission / CVT Kit Polini Hi-Speed Piaggio long

110,00 €
In stock
RRP
132,00 €
-17% Discount
Polini
Transmission / CVT Kit Polini Hi-Speed Piaggio short
Article no.: U241.672.1

Transmission / CVT Kit Polini Hi-Speed Piaggio short

100,00 €
In stock
RRP
132,00 €
-24% Discount
Sale
Malossi
CVT Malossi Multivar Honda Zoomer / Dio Clean 4-stroke
Article no.: M5111852

CVT Malossi Multivar Honda Zoomer / Dio Clean 4-stroke

64,00 €
In stock
75,00 €
-15% Discount
Sale
Malossi
CVT Kit Malossi MHR Over Range Piaggio Zip
Article no.: M6118836

CVT Kit Malossi MHR Over Range Piaggio Zip

333,00 €
In stock
RRP
375,00 €
-11% Discount
Malossi
CVT Kit Malossi MHR Overrange Piaggio before 2011
Article no.: M6118835

CVT Kit Malossi MHR Overrange Piaggio before 2011

248,00 €
In stock
RRP
375,00 €
-34% Discount
Sale
Malossi
CVT Kit Overrange Malossi MHR Minarelli short / Jog
Article no.: M6112812

CVT Kit Overrange Malossi MHR Minarelli short / Jog

273,00 €
In stock
RRP
370,00 €
-26% Discount
Sale
Malossi
CVT Variator Malossi MHR Alu Minarelli
Article no.: M5118678

CVT Variator Malossi MHR Alu Minarelli

133,00 €
In stock
RRP
168,00 €
-21% Discount
Sale
Malossi
V-Belt Malossi X Special Belt Piaggio TPH after 2011 / Scarabeo / Liberty
Article no.: M619830

V-Belt Malossi X Special Belt Piaggio TPH after 2011 / Scarabeo / Liberty

28,00 €
In stock
Malossi
Drive Belt Malossi X K Belt Overrange Yamaha Jog (short)
Article no.: M6111108

Drive Belt Malossi X K Belt Overrange Yamaha Jog (short)

28,00 €
In stock
RRP
37,00 €
-24% Discount
Sale
Piaggio
CVT Maintenance Kit Piaggio 50 ZIP 2T 2000 / Vespa LX 2T 2005 - 2013
Article no.: OE-PIA1R000441

CVT Maintenance Kit Piaggio 50 ZIP 2T 2000 / Vespa LX 2T 2005 - 2013

25,00 €
In stock
32,00 €
-22% Discount
Sale
Athena
V-Belt Athena Maxi Platinum Peugeot Speedfight / TKR 100cc
Article no.: AT-S41PLAT015

V-Belt Athena Maxi Platinum Peugeot Speedfight / TKR 100cc

27,50 €
In stock
Polini
Variator Weights Polini (x12)
Article no.: 106000_A-GEWPOLINI_12STK

Variator Weights Polini (x12)

8,00 €
In stock
26,00 €
-69% Discount
Polini
Variator Weights Polini (x8)
Article no.: 106000_A-GEWPOLINI_8STK

Variator Weights Polini (x8)

6,20 €
In stock
31,00 €
-80% Discount
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Scooter CVT transmission

A scooter's CVT operates with three main components: the variator (front pulley), the drive belt, and the torque driver (rear pulley).

As an evolution of the drive systems found on classic mopeds, this system is more sophisticated and powerful. Naturally, it must be perfectly tuned to ensure optimal power transfer to the rear wheel.

Together with the centrifugal clutch, the CVT forms a continuously variable transmission (CVT) that provides smooth acceleration without shifting jolts.

How a Scooter CVT Works:

Variator:

A variator allows the gear ratio to be adjusted automatically and variably depending on engine speed. Although systems may differ in detail, the principle remains the same:

  • The variator is mounted directly on the crankshaft, meaning it rotates at the same speed as the engine.
  • It consists of a fixed and a movable pulley, with the drive belt running in between. These pulleys are conically shaped.
  • The movable part contains variator weights: small cylindrical components or rollers that are pushed outward by centrifugal force, thereby moving the pulley.
  • Since the drive belt is wedged between the two conical pulleys, it is forced to slide upward. This changes the gear ratio and the speed of the driven parts (similar to a sprocket on a motorcycle: the larger it is, the higher the top speed).

CVT Weights (rollers)

Heavier weights cause the variator to open more slowly, while lighter weights make it open faster. Adjusting the CVT weights is essential after any modifications that affect engine power to achieve proper power delivery.

With every engine modification, the weight should be adjusted. Various tuning kits are available to find the ideal setup.

Drive Belt:

The belt simply provides the connection between the variator at the front and the torque driver at the rear. It slides from the inside to the outside on the variator pulleys to vary the speed.

This raises a question: if the belt rises higher on the variator, doesn't it become too short? How is this length compensated for? You will find the answer here ↓

Torque Driver (Rear Pulley):

To compensate for the movement of the belt and the required length, manufacturers install a torque driver. This is the rear counterpart to the front variator unit, which, like the variator, features a fixed and a movable pulley. During acceleration, the drive belt pushes the pulleys apart to move inward. When letting off the throttle, the torque spring pushes the movable pulley back together so the drive belt can return to its starting position.

Contra springs, like rollers, are available in different strengths (stiffness levels). It is important to choose a version that matches the engine performance.

Sport and Racing CVT: Optimized Ramp Angles and Larger Diameter

To adapt the gear ratio to the power of the respective engine, manufacturers have optimized the variator elements as much as possible: different weights, various torque spring strengths, different roller diameters, and ramp angles. As you can see, the possibilities are very diverse.

Sport CVT: Standard Range

Whether you choose a sport cylinder or stay with the original 50cc, a sport variator with a standard diameter is usually sufficient. The optimized ramps are perfectly adequate for bringing moderate power increases to the road.

Racing CVT: Oversize Range

When a scooter engine is more heavily tuned, for example with a racing or high-end cylinder from 70cc upward, the working range of the standard variator often becomes too small. The engine then has significantly more torque and power, which can only be fully utilized with the help of pulleys with increased diameters (oversize).

This results in both better acceleration and a higher top speed.

All well-known racing brands offer such systems: Stage6 R/T Oversize, Malossi Overrange, Polini Evolution, etc.

ATTENTION: Only a sufficiently powerful engine will work correctly with this type of variator, so stay away from oversize CVTs for standard setups!

Scooter Variators in Our Shop

In our online shop, you will find all types of CVTs and CVT accessories. Sport and racing variators from popular brands like Malossi, Polini, Stage6 and Stage6 R/T as well as standard variators for original-style repairs. Of course, we also carry a large selection of drive belts (original or reinforced), weights, torque springs, shims, torque drivers, and even complete CVT kits!

Naturally, we have all parts in stock for the most common models with Piaggio, Minarelli, Peugeot, or Morini engines, such as for the Piaggio Zip, MBK Booster, Peugeot Kisbee, Suzuki Katana, and many more!

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