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CVT and Drive Belts

(420 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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Standard Parts
Drive Belt Bando Sym 50 Jet
Article no.: CGN478105

Drive Belt Bando Sym 50 Jet

25,00 €
In stock
Standard Parts
Drive Belt Bando Peugeot Kisbee / Django 50cc 4-stroke
Article no.: CGN480907

Drive Belt Bando Peugeot Kisbee / Django 50cc 4-stroke

23,50 €
In stock
Polini
CVT Variator Polini Hi Speed Sym Orbit 50cc 4-stroke
Article no.: P241.754

CVT Variator Polini Hi Speed Sym Orbit 50cc 4-stroke

129,00 €
In stock
RRP
152,00 €
-15% Discount
MotoForce
CVT Sliders x3 Peugeot
Article no.: MF60.17501
4

CVT Sliders x3 Peugeot

3,30 €
In stock soon
RRP
3,80 €
-13% Discount
MotoForce
CVT Sliders x3 Minarelli
Article no.: MF60.16613
8

CVT Sliders x3 Minarelli

2,70 €
In stock soon
RRP
2,90 €
-7% Discount
MotoForce
Drive Belt Motoforce Piaggio short before 1998
Article no.: MF71.14015

Drive Belt Motoforce Piaggio short before 1998

13,00 €
In stock soon
RRP
14,50 €
-10% Discount
Stage6 R/T
CVT Variator Oversize Stage6 R/T Piaggio
Article no.: S6-5614039
12

CVT Variator Oversize Stage6 R/T Piaggio

129,00 €
In stock soon
RRP
143,00 €
-10% Discount
Malossi
CVT Variator Malossi Multivar Peugeot Speedfight 3 50cc 4T
Article no.: M5114206

CVT Variator Malossi Multivar Peugeot Speedfight 3 50cc 4T

91,00 €
In stock soon
Malossi
CVT Kit Overrange Malossi MHR La Furia Rossa Piaggio long
Article no.: M6115781
1

CVT Kit Overrange Malossi MHR La Furia Rossa Piaggio long

462,00 €
In stock soon
RRP
521,00 €
-11% Discount
Malossi
Drive Belt Malossi X K Belt Kymco 4T Euro 2
Article no.: M6113501
1

Drive Belt Malossi X K Belt Kymco 4T Euro 2

34,00 €
In stock soon
RRP
35,00 €
-3% 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-K Belt Piaggio TPH after 2011 / Scarabeo / Liberty
Article no.: M619535
1

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

39,50 €
In stock soon
Malossi
CVT Variator Malossi Multivar Peugeot SV / Honda X8R
Article no.: M517117
1

CVT Variator Malossi Multivar Peugeot SV / Honda X8R

78,50 €
In stock soon
RRP
82,00 €
-4% Discount
Standard Parts
Drive Belt Kymco / SYM 736X18X9.1
Article no.: MF72.00007

Drive Belt Kymco / SYM 736X18X9.1

26,00 €
In stock soon
Top Performances
CVT Kit Top Performances TPR GP Minarelli long / Aerox
Article no.: T9931670
15

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
2Fast
Half Pulley 2Fast CNC Aluminium Piaggio
Article no.: 2FASTPULFIX01P

Half Pulley 2Fast CNC Aluminium Piaggio

99,50 €
In stock soon
Polini
CVT Kit Polini Hi-Speed Peugeot
Article no.: U241.510.2
8

CVT Kit Polini Hi-Speed Peugeot

114,00 €
In stock soon
RRP
135,00 €
-16% Discount
MotoForce
Drive Belt Morini
Article no.: MF72.00004

Drive Belt Morini

14,50 €
Currently not in stock
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

165,14 €
Currently not in stock
179,50 €
-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

163,30 €
Currently not in stock
177,50 €
-8% Set-Rabatt
Stage6
CVT / Clutch Stage6 Sport Pro Minarelli short / Jog
Article no.: S6-5816610

CVT / Clutch Stage6 Sport Pro Minarelli short / Jog

163,30 €
Currently not in stock
177,50 €
-8% 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

655,20 €
Currently not in stock
728,00 €
-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

656,10 €
Currently not in stock
729,00 €
-10% Set-Rabatt
Malossi
CVT Malossi MHR Multivar Yamaha Giggle 50cc 4-stroke
Article no.: M5113603

CVT Malossi MHR Multivar Yamaha Giggle 50cc 4-stroke

84,00 €
Currently not in stock
RRP
87,00 €
-3% Discount
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 €
Currently not in stock
RRP
537,00 €
-16% Discount
Malossi
CVT Variator Malossi Multivar Piaggio / Vespa 50ccm 4T
Article no.: M5111597

CVT Variator Malossi Multivar Piaggio / Vespa 50ccm 4T

88,00 €
Currently not in stock
RRP
94,00 €
-6% Discount
Malossi
CVT Variator Malossi Multivar Piaggio before 1998
Article no.: M518648

CVT Variator Malossi Multivar Piaggio before 1998

103,00 €
Currently not in stock
RRP
106,00 €
-3% Discount
Malossi
V-Belt Malossi X Special Belt Piaggio TPH after 2011 / Scarabeo / Liberty
Article no.: M619830
3

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

28,00 €
Currently not in stock
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 €
Currently not in stock
RRP
31,00 €
-5% Discount
Malossi
CVT Variator Malossi Multivar Kymco Spacer / Cobra / Super 9
Article no.: M519988
2

CVT Variator Malossi Multivar Kymco Spacer / Cobra / Super 9

79,00 €
Currently not in stock
RRP
82,00 €
-4% Discount
Malossi
CVT Variator Malossi Multivar Peugeot
Article no.: M518752
23

CVT Variator Malossi Multivar Peugeot

74,50 €
Currently not in stock
RRP
85,00 €
-12% Discount
Malossi
CVT Variator Malossi Multivar Piaggio Zip (1st series)
Article no.: M517081

CVT Variator Malossi Multivar Piaggio Zip (1st series)

87,00 €
Currently not in stock
RRP
89,00 €
-2% Discount
Malossi
CVT Variator Malossi MHR Multivar Suzuki Katana (after 1999)
Article no.: M5111298

CVT Variator Malossi MHR Multivar Suzuki Katana (after 1999)

85,00 €
Currently not in stock
RRP
87,00 €
-2% Discount
Malossi
Spacer Ring Malossi Multivar Minarelli
Article no.: M087059.B0
1

Spacer Ring Malossi Multivar Minarelli

5,80 €
Currently not in stock
Malossi
V-Belt Malossi X Special Belt Aerox 4T / China 2T / Minarelli short
Article no.: M6112741

V-Belt Malossi X Special Belt Aerox 4T / China 2T / Minarelli short

25,00 €
Currently not in stock
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 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
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 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
1

CVT Pulley / Fanwheel PGO New Models

14,00 €
Currently not in stock
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
Top Performances
CVT Kit Top Performances TPR GP Piaggio short new
Article no.: T9931260

CVT Kit Top Performances TPR GP Piaggio short new

86,50 €
Currently not in stock
RRP
88,00 €
-2% Discount
Naraku
CVT Naraku Sport Kymco / Sym
Article no.: NK900.89

CVT Naraku Sport Kymco / Sym

46,00 €
Currently not in stock
Standard Parts
Drive Belt Motoforce Suzuki Katana after 1999
Article no.: MF72.00006

Drive Belt Motoforce Suzuki Katana after 1999

18,00 €
Currently not in stock
Piaggio
V-Belt original Piaggio TPH after 2011 / Scarabeo / Liberty
Article no.: OE-PIA82712R

V-Belt original Piaggio TPH after 2011 / Scarabeo / Liberty

30,50 €
Currently not in stock
35,00 €
-13% Discount
Top Performances
Transmission / CVT Kit Top Performances TPR Piaggio long
Article no.: T9931300
1

Transmission / CVT Kit Top Performances TPR Piaggio long

92,50 €
Currently not in stock
RRP
100,00 €
-8% Discount
Piaggio
CVT Boss Piaggio NRG / Typhoon after 1998
Article no.: OE-PIA480230

CVT Boss Piaggio NRG / Typhoon after 1998

30,50 €
Currently not in stock
Naraku
CVT Boss Naraku Kymco / Sym
Article no.: NK800.01

CVT Boss Naraku Kymco / Sym

7,50 €
Currently not in stock
GY6
CVT Variator OEM quality GY6 139QMB/139QMA
Article no.: OE-GY6BT12278
2

CVT Variator OEM quality GY6 139QMB/139QMA

13,50 €
Currently not in stock
14,00 €
-4% Discount
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 €
Currently not in stock
RRP
85,50 €
-15% Discount
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 €
Currently not in stock
RRP
80,00 €
-15% Discount
Polini
CVT Boss Polini 13x22x49 DLC coated
Article no.: P935.102

CVT Boss Polini 13x22x49 DLC coated

26,00 €
Currently not in stock
RRP
29,00 €
-10% Discount
Polini
CVT Boss Polini 16x22x49 DLC coated
Article no.: P935.099

CVT Boss Polini 16x22x49 DLC coated

26,00 €
Currently not in stock
RRP
29,00 €
-10% Discount
Polini
V-belt Polini Vespa Primavera 50 after 2018
Article no.: P248.135

V-belt Polini Vespa Primavera 50 after 2018

26,00 €
Currently not in stock
RRP
29,00 €
-10% Discount
Polini
CVT Shims Polini d.16mm Piaggio / Minarelli (0,5 / 1 / 4 mm)
Article no.: P246.054

CVT Shims Polini d.16mm Piaggio / Minarelli (0,5 / 1 / 4 mm)

7,00 €
Currently not in stock
RRP
8,00 €
-13% 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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