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CVT and Drive Belts

(401 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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Stage6
CVT Shims (x30) Stage6 16mm CPI / Chinese 2-stroke
Article no.: S6-5155016

CVT Shims (x30) Stage6 16mm CPI / Chinese 2-stroke

12,50 €
In stock soon
Stage6
CVT Shims (x32) Stage6 0.4 - 1mm / 13x18.8mmm Minarelli / Peugeot / Honda
Article no.: S6-5155013

CVT Shims (x32) Stage6 0.4 - 1mm / 13x18.8mmm Minarelli / Peugeot / Honda

12,50 €
In stock soon
Stage6
CVT Shims (x32) Stage6 0.4 - 1mm / 14.8x20mmm Piaggio / Suzuki / Aprilia / Morini
Article no.: S6-5155015
1

CVT Shims (x32) Stage6 0.4 - 1mm / 14.8x20mmm Piaggio / Suzuki / Aprilia / Morini

12,50 €
In stock soon
MotoForce Racing
CVT Variator V.2 Motoforce Racing GY6 / Kymco 139QMB
Article no.: MF75.13901
2

CVT Variator V.2 Motoforce Racing GY6 / Kymco 139QMB

46,00 €
In stock soon
MotoForce Racing
CVT Variator V.2 Motoforce Racing China 2T 16mm
Article no.: MF75.19005

CVT Variator V.2 Motoforce Racing China 2T 16mm

36,00 €
In stock soon
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
Malossi
CVT Overrange Malossi MHR Furia Rossa Minarelli long / Aerox
Article no.: M6115821

CVT Overrange Malossi MHR Furia Rossa Minarelli long / Aerox

467,00 €
In stock soon
RRP
565,00 €
-17% 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

59,50 €
In stock soon
RRP
63,00 €
-6% Discount
Malossi
CVT Variator Malossi MHR Alu Minarelli
Article no.: M5118678

CVT Variator Malossi MHR Alu Minarelli

167,00 €
In stock soon
RRP
168,00 €
-1% Discount
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 soon
Malossi
Drive Belt Malossi X-Special Belt Piaggio before 1998 long
Article no.: M619832

Drive Belt Malossi X-Special Belt Piaggio before 1998 long

29,00 €
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
Malossi
CVT Variator Malossi Multivar Peugeot SV / Honda X8R
Article no.: M517117

CVT Variator Malossi Multivar Peugeot SV / Honda X8R

78,50 €
In stock soon
RRP
82,00 €
-4% Discount
Malossi
CVT Variator Malossi Multivar Minarelli
Article no.: M517075
2

CVT Variator Malossi Multivar Minarelli

80,50 €
In stock soon
RRP
94,00 €
-14% Discount
Malossi
Spacer Ring Malossi Multivar Minarelli
Article no.: M087059.B0

Spacer Ring Malossi Multivar Minarelli

5,80 €
In stock soon
Piaggio
Variator Restrictor Ring 26x20x5,5mm Piaggio
Article no.: OE-PIACM100609

Variator Restrictor Ring 26x20x5,5mm Piaggio

2,10 €
In stock soon
Piaggio
Variator Slider Piaggio (x1)
Article no.: OE-PIA289931

Variator Slider Piaggio (x1)

1,00 €
In stock soon
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
Top Performances
Front Pulley / Fan Wheel Top Performances Minarelli
Article no.: TPL04056

Front Pulley / Fan Wheel Top Performances Minarelli

12,00 €
In stock soon
MotoForce
CVT Kit Motoforce with belt Peugeot horizontal
Article no.: MF75.17508

CVT Kit Motoforce with belt Peugeot horizontal

50,13 €
Currently not in stock
55,70 €
-10% Set-Rabatt
MotoForce
CVT Kit Motoforce with belt Piaggio short after 1998
Article no.: MF75.14013

CVT Kit Motoforce with belt Piaggio short after 1998

78,48 €
Currently not in stock
87,20 €
-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

82,08 €
Currently not in stock
91,20 €
-10% Set-Rabatt
MotoForce
CVT Kit Motoforce with belt Peugeot vertical
Article no.: MF75.17507

CVT Kit Motoforce with belt Peugeot vertical

52,65 €
Currently not in stock
58,50 €
-10% 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

172,50 €
Currently not in stock
187,50 €
-8% Set-Rabatt
MotoForce Racing
CVT Kit MotoForce Racing V.2 Piaggio long after 1998
Article no.: MF75.14015

CVT Kit MotoForce Racing V.2 Piaggio long after 1998

87,30 €
Currently not in stock
97,00 €
-10% Set-Rabatt
MotoForce Racing
CVT Kit MotoForce Racing V.2 Peugeot vertical
Article no.: MF75.17510
1

CVT Kit MotoForce Racing V.2 Peugeot vertical

66,60 €
Currently not in stock
RRP
69,50 €
-4% Discount
MotoForce Racing
Drive Belt MotoForce Racing Peugeot
Article no.: MF73.17520

Drive Belt MotoForce Racing Peugeot

19,00 €
Currently not in stock
RRP
21,50 €
-12% Discount
MotoForce Racing
CVT Kit MotoForce Racing Piaggio short after 1998
Article no.: MF75.14019

CVT Kit MotoForce Racing Piaggio short after 1998

93,59 €
Currently not in stock
95,50 €
-2% Set-Rabatt
MotoForce Racing
CVT Kit 729mm MotoForce Racing GY6 12 inch
Article no.: MF75.13912

CVT Kit 729mm MotoForce Racing GY6 12 inch

69,58 €
Currently not in stock
71,00 €
-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

71,54 €
Currently not in stock
73,00 €
-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

166,60 €
Currently not in stock
170,00 €
-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 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

161,70 €
Currently not in stock
165,00 €
-2% Set-Rabatt
MotoForce Racing
CVT Kit MotoForce Racing Peugeot horizontal
Article no.: MF75.17511

CVT Kit MotoForce Racing Peugeot horizontal

62,92 €
Currently not in stock
64,20 €
-2% Set-Rabatt
MotoForce Racing
CVT Kit MotoForce Racing GY6 139QMB
Article no.: MF75.13910

CVT Kit MotoForce Racing GY6 139QMB

122,40 €
Currently not in stock
136,00 €
-10% 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 16mm - 12,5° Piaggio
Article no.: U241.749
1

CVT Variator Polini Hi-Speed Evo 2 16mm - 12,5° Piaggio

136,00 €
Currently not in stock
RRP
160,00 €
-15% Discount
Polini
CVT Variator Polini Hi Speed Evo 2 16mm Piaggio
Article no.: U241.751

CVT Variator Polini Hi Speed Evo 2 16mm Piaggio

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
Malossi
CVT Variator Malossi Multivar Peugeot Speedfight 3 50cc 4T
Article no.: M5114206

CVT Variator Malossi Multivar Peugeot Speedfight 3 50cc 4T

86,50 €
Currently not in stock
RRP
101,00 €
-14% Discount
Standard Parts
CVT Boss 15x19,8x38mm Piaggio
Article no.: MF60.14012

CVT Boss 15x19,8x38mm Piaggio

6,10 €
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
Polini
CVT Variator Polini Hi Speed Yamaha Aerox 50cc 4-stroke
Article no.: U241.746

CVT Variator Polini Hi Speed Yamaha Aerox 50cc 4-stroke

74,00 €
Currently not in stock
RRP
88,00 €
-16% 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
Piaggio
CVT Variator 19x15,5mm Piaggio 50cc
Article no.: OE-PIACM110301

CVT Variator 19x15,5mm Piaggio 50cc

58,50 €
Currently not in stock
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
Half Pulley / Fan Wheel Sym / Peugeot 50cc 4-stroke
Article no.: 34138

Half Pulley / Fan Wheel Sym / Peugeot 50cc 4-stroke

11,50 €
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
Standard Parts
Drive Belt Piaggio Fly 4-stroke / Derbi Atlantis 4-stroke
Article no.: F923KV

Drive Belt Piaggio Fly 4-stroke / Derbi Atlantis 4-stroke

20,00 €
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
Malossi
V-Belt Malossi X-Special Belt Suzuki Katana / Aprilia Scarabeo
Article no.: M6116844

V-Belt Malossi X-Special Belt Suzuki Katana / Aprilia Scarabeo

31,00 €
Currently not in stock
RRP
32,00 €
-3% 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
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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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