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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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Bushings & Spacers CVT CVT accessories CVT boss CVT cover CVT kit CVT restriction CVT sliders CVT weights Kickstarter accessories Pulley Ramp plate Repair / maintenance kit V-belt Washer CVT shim Kickstart gear Kickstart washer Nut
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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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MotoForce
CVT Sliders x3 Peugeot
Article no.: MF60.17501
1

CVT Sliders x3 Peugeot

3,30 €
In stock soon
RRP
3,80 €
-13% Discount
MotoForce
CVT Variator Motoforce China 2T / CPI / Keeway / Generic)
Article no.: MF75.19004

CVT Variator Motoforce China 2T / CPI / Keeway / Generic)

19,00 €
In stock soon
RRP
21,50 €
-12% Discount
MotoForce
CVT Fan Wheel GY6 4-stroke
Article no.: MF78.19401

CVT Fan Wheel GY6 4-stroke

1,90 €
In stock soon
RRP
2,20 €
-14% Discount
Stage6 R/T
CVT Variator Oversize Stage6 R/T Piaggio
Article no.: S6-5614039

CVT Variator Oversize Stage6 R/T Piaggio

129,00 €
In stock soon
RRP
143,00 €
-10% Discount
Stage6 R/T
CVT Variator Stage6 R/T Oversize Minarelli / Aerox
Article no.: S6-5616634
1

CVT Variator Stage6 R/T Oversize Minarelli / Aerox

129,00 €
In stock soon
RRP
143,00 €
-10% Discount
Malossi
CVT Variator Malossi MHR Team 2 Piaggio
Article no.: M5118238

CVT Variator Malossi MHR Team 2 Piaggio

124,00 €
In stock soon
RRP
134,00 €
-7% Discount
Peugeot
CVT Restrictor Ring 45 km/h Peugeot horizontal
Article no.: OE-PEU76147200

CVT Restrictor Ring 45 km/h Peugeot horizontal

8,80 €
In stock soon
Top Performances
CVT Kit Top Performances TPR GP Minarelli long / Aerox
Article no.: T9931670
4

CVT Kit Top Performances TPR GP Minarelli long / Aerox

85,50 €
In stock soon
RRP
113,00 €
-24% Discount
Airsal
CVT Small Parts Airsal 16mm for Airsal crankshaft 45mm
Article no.: C35073350

CVT Small Parts Airsal 16mm for Airsal crankshaft 45mm

33,00 €
In stock soon
Malossi
Drive Belt Malossi X-Special Belt Peugeot
Article no.: M6112735
1

Drive Belt Malossi X-Special Belt Peugeot

25,00 €
In stock soon
Malossi
Drive Belt Malossi X K Belt Piaggio Sfera / Zip 1991 – 1994
Article no.: M617229

Drive Belt Malossi X K Belt Piaggio Sfera / Zip 1991 – 1994

29,50 €
In stock soon
RRP
31,00 €
-5% Discount
Top Performances
CVT Kit Top Performances GP Trophy Minarelli
Article no.: T9931650

CVT Kit Top Performances GP Trophy Minarelli

75,00 €
In stock soon
RRP
91,00 €
-18% Discount
Stage6
Transmission / CVT Kit Stage6 Sport Pro Peugeot
Article no.: MS-PKMS6VARPEUG
1

Transmission / CVT Kit Stage6 Sport Pro Peugeot

168,75 €
Currently not in stock
187,50 €
-10% Set-Rabatt
Stage6
CVT Kit Stage6 Sport Pro Minarelli long / Aerox
Article no.: MS-PKMS6VARMINA
2

CVT Kit Stage6 Sport Pro Minarelli long / Aerox

172,50 €
Currently not in stock
187,50 €
-8% Set-Rabatt
Stage6
CVT Kit with clutch Stage6 Sport Pro Piaggio Zip / Vespa before 2000
Article no.: S6-5814017

CVT Kit with clutch Stage6 Sport Pro Piaggio Zip / Vespa before 2000

166,06 €
Currently not in stock
180,50 €
-8% Set-Rabatt
Stage6
CVT Kit with clutch Stage6 Sport Pro Piaggio Zip / Vespa after 2000
Article no.: S6-5814016

CVT Kit with clutch Stage6 Sport Pro Piaggio Zip / Vespa after 2000

141,68 €
Currently not in stock
154,00 €
-8% Set-Rabatt
Stage6
CVT Kit with clutch Stage6 Sport Pro Piaggio / Gilera long before 1998
Article no.: S6-5814015

CVT Kit with clutch Stage6 Sport Pro Piaggio / Gilera long before 1998

169,74 €
Currently not in stock
184,50 €
-8% Set-Rabatt
Stage6
CVT Kit with clutch Stage6 Sport Pro Piaggio NRG / Typhoon after 1998
Article no.: S6-5814014

CVT Kit with clutch Stage6 Sport Pro Piaggio NRG / Typhoon after 1998

169,74 €
Currently not in stock
184,50 €
-8% Set-Rabatt
Stage6
CVT Kit with clutch Stage6 Sport Pro 112mm Minarelli / CPI / China 2-stroke
Article no.: MS-PKMS6VARCPI01

CVT Kit with clutch Stage6 Sport Pro 112mm Minarelli / CPI / China 2-stroke

134,32 €
Currently not in stock
151,50 €
-11% Set-Rabatt
Stage6
CVT / Clutch Stage6 Sport Pro Minarelli short / Jog
Article no.: S6-5816610

CVT / Clutch Stage6 Sport Pro Minarelli short / Jog

164,22 €
Currently not in stock
178,50 €
-8% Set-Rabatt
MotoForce
CVT Kit Motoforce with belt CPI / Keeway / Generic 16mm
Article no.: MF75.19009

CVT Kit Motoforce with belt CPI / Keeway / Generic 16mm

39,69 €
Currently not in stock
RRP
64,50 €
-38% Discount
MotoForce
CVT Kit Motoforce with belt Piaggio short after 1998
Article no.: MF75.14013

CVT Kit Motoforce with belt Piaggio short after 1998

75,33 €
Currently not in stock
83,70 €
-10% Set-Rabatt
MotoForce
CVT Kit Motoforce with belt Piaggio long after 1998
Article no.: MF75.14014

CVT Kit Motoforce with belt Piaggio long after 1998

80,28 €
Currently not in stock
89,20 €
-10% Set-Rabatt
Stage6 R/T
Drive Kit CVT / Clutch Stage6 R/T Oversize XL Piaggio short
Article no.: S6-5614007

Drive Kit CVT / Clutch Stage6 R/T Oversize XL Piaggio short

688,50 €
Currently not in stock
765,00 €
-10% Set-Rabatt
Stage6 R/T
Drive Kit CVT / Clutch Stage6 R/T Oversize XL Piaggio long
Article no.: S6-5614006

Drive Kit CVT / Clutch Stage6 R/T Oversize XL Piaggio long

672,30 €
Currently not in stock
747,00 €
-10% Set-Rabatt
Stage6 R/T
CVT / Clutch Oversize Stage6 R/T Minarelli / China 2-stroke
Article no.: S6-5616603

CVT / Clutch Oversize Stage6 R/T Minarelli / China 2-stroke

688,50 €
Currently not in stock
765,00 €
-10% Set-Rabatt
MotoForce Racing
CVT + Clutch Motoforce Racing Minarelli long / Aerox
Article no.: MS-PKMMFVARMINA
1

CVT + Clutch Motoforce Racing Minarelli long / Aerox

68,85 €
Currently not in stock
RRP
83,00 €
-17% Discount
MotoForce Racing
CVT Kit MotoForce Racing Piaggio short after 1998
Article no.: MF75.14019

CVT Kit MotoForce Racing Piaggio short after 1998

89,67 €
Currently not in stock
91,50 €
-2% Set-Rabatt
MotoForce Racing
CVT Kit 669mm MotoForce Racing GY6 10 inch
Article no.: MF75.13911

CVT Kit 669mm MotoForce Racing GY6 10 inch

66,64 €
Currently not in stock
68,00 €
-2% Set-Rabatt
MotoForce Racing
CVT Kit + Clutch MotoForce Racing Piaggio short after 1998
Article no.: MF75.14018

CVT Kit + Clutch MotoForce Racing Piaggio short after 1998

162,68 €
Currently not in stock
166,00 €
-2% Set-Rabatt
MotoForce Racing
CVT Kit + Clutch MotoForce Racing Peugeot
Article no.: MF75.17512

CVT Kit + Clutch MotoForce Racing Peugeot

151,90 €
Currently not in stock
155,00 €
-2% Set-Rabatt
MotoForce Racing
CVT Kit + Clutch MotoForce Racing Minarelli
Article no.: MF75.16611

CVT Kit + Clutch MotoForce Racing Minarelli

144,55 €
Currently not in stock
147,50 €
-2% Set-Rabatt
MotoForce Racing
CVT Kit + Clutch MotoForce Racing CPI / Keeway (13mm)
Article no.: MF75.19012

CVT Kit + Clutch MotoForce Racing CPI / Keeway (13mm)

151,41 €
Currently not in stock
154,50 €
-2% Set-Rabatt
MotoForce Racing
CVT Kit + Clutch MotoForce Racing CPI / Keeway (16mm)
Article no.: MF75.19013

CVT Kit + Clutch MotoForce Racing CPI / Keeway (16mm)

150,43 €
Currently not in stock
153,50 €
-2% Set-Rabatt
MotoForce Racing
CVT Kit + Clutch MotoForce Racing Piaggio long 1998 - 2010
Article no.: MF75.14016

CVT Kit + Clutch MotoForce Racing Piaggio long 1998 - 2010

154,84 €
Currently not in stock
158,00 €
-2% Set-Rabatt
MotoForce Racing
CVT Boss + Shims Motoforce Racing Yamaha Aerox
Article no.: MF60.16633

CVT Boss + Shims Motoforce Racing Yamaha Aerox

16,11 €
Currently not in stock
17,90 €
-10% Set-Rabatt
Polini
CVT Variator Polini Hi Speed Evo 2 Minarelli long / Aerox
Article no.: U241.752

CVT Variator Polini Hi Speed Evo 2 Minarelli long / Aerox

136,00 €
Currently not in stock
RRP
160,00 €
-15% Discount
Polini
CVT Variator Polini Hi Speed Evo 2 16mm Minarelli / Aerox
Article no.: U241.753

CVT Variator Polini Hi Speed Evo 2 16mm Minarelli / Aerox

136,00 €
Currently not in stock
RRP
160,00 €
-15% Discount
Standard Parts
CVT Boss 20x12,8x38,5mm Peugeot
Article no.: MF60.17505

CVT Boss 20x12,8x38,5mm Peugeot

5,70 €
Currently not in stock
Polini
CVT Kit Polini Hi-Speed Kymco Agility 50cc 4T Euro 4
Article no.: U241.745

CVT Kit Polini Hi-Speed Kymco Agility 50cc 4T Euro 4

98,50 €
Currently not in stock
RRP
115,00 €
-14% Discount
Standard Parts
Variator Weight Tuning Kit 19x15mm x6
Article no.: MF56.19000

Variator Weight Tuning Kit 19x15mm x6

33,50 €
Currently not in stock
34,00 €
-1% Discount
Polini
V-Belt Polini Original Piaggio TPH after 2011 / Scarabeo / Liberty
Article no.: U248.056

V-Belt Polini Original Piaggio TPH after 2011 / Scarabeo / Liberty

27,00 €
Currently not in stock
RRP
31,00 €
-13% Discount
Naraku
CVT Boss Naraku 13x18x37mm Minarelli 2-stroke
Article no.: NK800.05

CVT Boss Naraku 13x18x37mm Minarelli 2-stroke

7,40 €
Currently not in stock
7,50 €
-1% Discount
Naraku
CVT Boss Naraku Speed-Up Kit 20x38mm GY6 / Kymco 2T / 4T
Article no.: NK800.04

CVT Boss Naraku Speed-Up Kit 20x38mm GY6 / Kymco 2T / 4T

9,00 €
Currently not in stock
Naraku
CVT Boss Naraku Speed-Up Kit 16mm – 21x37mm CP
Article no.: NK800.06

CVT Boss Naraku Speed-Up Kit 16mm – 21x37mm CP

6,50 €
Currently not in stock
Standard Parts
CVT Pulley / Fanwheel PGO New Models
Article no.: 28837

CVT Pulley / Fanwheel PGO New Models

14,00 €
Currently not in stock
Naraku
Drive Belt Naraku V/S 787mm Minarelli 2 stroke - 4 stroke
Article no.: NK901.04

Drive Belt Naraku V/S 787mm Minarelli 2 stroke - 4 stroke

16,00 €
Currently not in stock
RRP
20,00 €
-20% Discount
Naraku
Drive Belt Naraku V/S 1E40QMB 788mm
Article no.: NK901.10

Drive Belt Naraku V/S 1E40QMB 788mm

20,00 €
Currently not in stock
Naraku
V-Belt Naraku Kymco / Sym horizontal 738x18x28mm
Article no.: NK900.08

V-Belt Naraku Kymco / Sym horizontal 738x18x28mm

15,50 €
Currently not in stock
Naraku
Drive Belt Naraku type 1E40QMB 788mm
Article no.: NK901.11

Drive Belt Naraku type 1E40QMB 788mm

13,50 €
Currently not in stock
Malossi
Drive Belt Malossi X Special Belt Honda SH 50 2-stroke
Article no.: M617233

Drive Belt Malossi X Special Belt Honda SH 50 2-stroke

26,00 €
Currently not in stock
RRP
28,00 €
-7% Discount
Polini
CVT Variator Polini Hi Speed Peugeot / Sym 50cc 4T
Article no.: U241.704

CVT Variator Polini Hi Speed Peugeot / Sym 50cc 4T

73,00 €
Currently not in stock
RRP
86,00 €
-15% Discount
Naraku
V-Belt Naraku V/S 788mm GY6 4-stroke 13"
Article no.: NK900.55

V-Belt Naraku V/S 788mm GY6 4-stroke 13"

17,00 €
Currently not in stock
Standard Parts
Drive Belt Motoforce Morini / Suzuki Katana before 1999
Article no.: MF72.00008

Drive Belt Motoforce Morini / Suzuki Katana before 1999

21,50 €
Currently not in stock
23,00 €
-7% Discount
Polini
Fanwheel Polini Air Speed Piaggio / Minarelli
Article no.: U246.032

Fanwheel Polini Air Speed Piaggio / Minarelli

9,40 €
Currently not in stock
RRP
10,00 €
-6% Discount
Polini
Plastic fanwheel / pulley Polini 244.110 Piaggio
Article no.: U246.030

Plastic fanwheel / pulley Polini 244.110 Piaggio

6,50 €
Currently not in stock
RRP
7,20 €
-10% Discount
Polini
CVT Variator Polini Hi-Speed, Honda Vision, 4-stroke
Article no.: U241.698

CVT Variator Polini Hi-Speed, Honda Vision, 4-stroke

69,00 €
Currently not in stock
RRP
81,00 €
-15% Discount
Peugeot
CVT Boss Peugeot vertical/horizontal
Article no.: OE-PEU75678600

CVT Boss Peugeot vertical/horizontal

17,00 €
Currently not in stock
GY6
Fan Wheel (front pulley) GY6 139QMB/QMA / Kymco 4T
Article no.: OE-GY6BT12019

Fan Wheel (front pulley) GY6 139QMB/QMA / Kymco 4T

2,20 €
Currently not in stock
2,30 €
-4% Discount
Aprilia
Washer Front Pulley Minarelli / China 2T
Article no.: OE-AP8206702

Washer Front Pulley Minarelli / China 2T

4,50 €
Currently not in stock
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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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