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CVT and Drive Belts

(423 products)
Scooter Variators CVT Kits CVT Weights Drive Belts Pulleys CVT Accessories
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Bushings & Spacers CVT CVT accessories CVT cover CVT kit CVT restriction CVT sleeve 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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Malossi
CVT Variator Malossi Multivar Minarelli
Article no.: M517075
2

CVT Variator Malossi Multivar Minarelli

83,50 €
In stock
RRP
89,00 €
-6% Discount
Malossi
CVT Variator Malossi MHR Multivar Aprilia SR
Article no.: M5111561

CVT Variator Malossi MHR Multivar Aprilia SR

77,00 €
In stock
RRP
87,00 €
-11% Discount
Sale
Malossi
Spacer Ring Malossi Multivar Minarelli
Article no.: M087059.B0

Spacer Ring Malossi Multivar Minarelli

5,80 €
In stock
Malossi
CVT Variator Malossi MHR Multivar 16mm stub CPI Hussar
Article no.: M5113363
2

CVT Variator Malossi MHR Multivar 16mm stub CPI Hussar

87,00 €
In stock
RRP
89,00 €
-2% Discount
Malossi
CVT Kit Overrange Malossi MHR Minarelli long / Aerox
Article no.: M6112811
1

CVT Kit Overrange Malossi MHR Minarelli long / Aerox

347,00 €
In stock
RRP
370,00 €
-6% Discount
Malossi
Drive Belt Malossi X Special Belt Aerox 4T / China 2T / Minarelli short
Article no.: M6112741

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

25,00 €
In stock
Malossi
CVT Variator Malossi MHR version 2005 Yamaha Aerox / BW's
Article no.: M5112800

CVT Variator Malossi MHR version 2005 Yamaha Aerox / BW's

117,00 €
In stock
RRP
128,00 €
-9% Discount
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 €
In stock
RRP
160,00 €
-15% Discount
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 €
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 €
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 €
In stock
RRP
160,00 €
-15% Discount
Polini
CVT Variator Polini Hi Speed Evo 2 Piaggio
Article no.: U241.750

CVT Variator Polini Hi Speed Evo 2 Piaggio

136,00 €
In stock
RRP
160,00 €
-15% Discount
Yamaha
Washer variator pulley Yamaha 50cc
Article no.: OE-YAM90201-13X06

Washer variator pulley Yamaha 50cc

1,90 €
In stock
Standard Parts
Variator Sleeve 15x19,8x49,2mm Piaggio / Vespa 4-stroke
Article no.: MF60.14013

Variator Sleeve 15x19,8x49,2mm Piaggio / Vespa 4-stroke

6,20 €
In stock
Standard Parts
Variator Sleeve 15x19,8x38mm Piaggio
Article no.: MF60.14012

Variator Sleeve 15x19,8x38mm Piaggio

6,10 €
In stock
Standard Parts
Variator Sleeve 20x12,8x38,5mm Peugeot
Article no.: MF60.17505

Variator Sleeve 20x12,8x38,5mm Peugeot

5,70 €
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 €
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

64,00 €
In stock
RRP
88,00 €
-27% Discount
Sale
Standard Parts
Variator Weight Tuning Kit 19x15mm x6
Article no.: MF56.19000

Variator Weight Tuning Kit 19x15mm x6

33,50 €
In stock
34,00 €
-1% Discount
Standard Parts
Variator Weight Tuning Kit 16x13mm
Article no.: MF56.16000

Variator Weight Tuning Kit 16x13mm

36,50 €
In stock
Polini
Drive Belt Polini Original Piaggio TPH after 2011 / Scarabeo / Liberty
Article no.: U248.056

Drive Belt Polini Original Piaggio TPH after 2011 / Scarabeo / Liberty

27,00 €
In stock
RRP
31,00 €
-13% Discount
Piaggio
Spacer Ring (behind variator) Piaggio 50cc 1998-
Article no.: OE-PIA479495

Spacer Ring (behind variator) Piaggio 50cc 1998-

6,40 €
In stock
Piaggio
CVT Variator 19x15,5mm Piaggio 50cc
Article no.: OE-PIACM110301

CVT Variator 19x15,5mm Piaggio 50cc

58,50 €
In stock
59,50 €
-2% Discount
Polini
CVT Variator Polini Hi Speed Evo 13mm Minarelli
Article no.: U241.731
2

CVT Variator Polini Hi Speed Evo 13mm Minarelli

94,00 €
In stock
RRP
111,00 €
-15% Discount
Naraku
Variator Sleeve Naraku 13x18x37mm Minarelli 2-stroke
Article no.: NK800.05

Variator Sleeve Naraku 13x18x37mm Minarelli 2-stroke

7,40 €
In stock
7,50 €
-1% Discount
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 €
In stock
Standard Parts
CVT Pulley / Fanwheel PGO New Models
Article no.: 28837

CVT Pulley / Fanwheel PGO New Models

14,00 €
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 €
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 €
In stock
Naraku
V-Belt Naraku Kymco / Sym horizontal 738x18x28mm
Article no.: NK900.08

V-Belt Naraku Kymco / Sym horizontal 738x18x28mm

15,50 €
In stock
Naraku
Drive Belt Naraku type 1E40QMB 788mm
Article no.: NK901.11

Drive Belt Naraku type 1E40QMB 788mm

13,50 €
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 €
In stock
20,50 €
-2% Discount
Standard Parts
Restrictor Ring 20x25x3mm Piaggio / China 4-stroke
Article no.: L-SP92615

Restrictor Ring 20x25x3mm Piaggio / China 4-stroke

2,90 €
In stock
Polini
Drive Belt Evo Overrange Piaggio after 1998 long
Article no.: U248.037.2

Drive Belt Evo Overrange Piaggio after 1998 long

66,00 €
In stock
RRP
78,00 €
-15% Discount
Naraku
Variator Weights (x6) Naraku
Article no.: NK91_WEIGHTSNARAKU
2

Variator Weights (x6) Naraku

5,00 €
In stock
MotoForce Racing
CVT Kit Racing V.2 with Drive Belt Piaggio long after 1998
Article no.: MF75.14015

CVT Kit Racing V.2 with Drive Belt Piaggio long after 1998

86,40 €
In stock
96,00 €
-10% Set-Rabatt
MotoForce Racing
CVT Kit Racing V.2 + Drive Belt Peugeot vertical
Article no.: MF75.17510
1

CVT Kit Racing V.2 + Drive Belt Peugeot vertical

57,15 €
In stock
63,50 €
-10% Set-Rabatt
MotoForce Racing
CVT Kit Racing V.2 with Drive Belt CPI / Keeway 13mm
Article no.: MF75.19011

CVT Kit Racing V.2 with Drive Belt CPI / Keeway 13mm

50,49 €
In stock
56,10 €
-10% Set-Rabatt
MotoForce Racing
CVT Kit Motoforce Racing Minarelli long / Aerox
Article no.: MF75.16610

CVT Kit Motoforce Racing Minarelli long / Aerox

53,19 €
In stock
59,10 €
-10% Set-Rabatt
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 €
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 €
In stock
23,00 €
-7% Discount
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

31,00 €
In stock
RRP
46,00 €
-33% Discount
Sale
Polini
Drive Belt Polini Evo Piaggio before 1998 short
Article no.: U248.031

Drive Belt Polini Evo Piaggio before 1998 short

33,00 €
In stock
RRP
41,00 €
-20% Discount
Polini
Transmission / CVT Kit Polini Hi-Speed Minarelli short
Article no.: U241.670.2

Transmission / CVT Kit Polini Hi-Speed Minarelli short

106,00 €
In stock
RRP
125,00 €
-15% 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 €
In stock
RRP
81,00 €
-15% Discount
Peugeot
Variator bush Peugeot vertical/horizontal
Article no.: OE-PEU75678600

Variator bush Peugeot vertical/horizontal

17,00 €
In stock
Peugeot
Variator ramp plate, Peugeot vertical
Article no.: OE-PEU730358

Variator ramp plate, Peugeot vertical

7,80 €
In stock
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
GY6
Drive belt 788x18x30mm GY6 12 inch disc brake / 13 inch drum
Article no.: OE-GY6BT15437

Drive belt 788x18x30mm GY6 12 inch disc brake / 13 inch drum

12,50 €
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 €
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 €
In stock
Naraku
CVT Naraku Sport Kymco / Sym
Article no.: NK900.89

CVT Naraku Sport Kymco / Sym

46,00 €
In stock
Naraku
CVT Variator Naraku Sport Kymco 2T, Sym 2T
Article no.: NK900.88

CVT Variator Naraku Sport Kymco 2T, Sym 2T

47,00 €
In stock
Naraku
Washers NARAKU Speed-up kit GY6 / Kymco 4T 50
Article no.: NK800.07

Washers NARAKU Speed-up kit GY6 / Kymco 4T 50

3,80 €
In stock
Naraku
CVT Sleeve derestricted 20x38mm GY6 139 QMB/QMB / Kymco horizontal
Article no.: NK800.03

CVT Sleeve derestricted 20x38mm GY6 139 QMB/QMB / Kymco horizontal

5,00 €
In stock
7,20 €
-31% Discount
Sale
Naraku
CVT Pulley Naraku High Speed CNC GY6 139QMA / 139QMB
Article no.: NK900.59

CVT Pulley Naraku High Speed CNC GY6 139QMA / 139QMB

39,00 €
In stock
Naraku
Drive belt Naraku Adly/HerChee, 17x878mm
Article no.: NK901.00

Drive belt Naraku Adly/HerChee, 17x878mm

24,00 €
In stock
Standard Parts
Drive Belt Kymco / SYM 736X18X9.1
Article no.: MF72.00007

Drive Belt Kymco / SYM 736X18X9.1

14,00 €
In stock
Sale
Standard Parts
Drive Belt Motoforce Suzuki Katana after 1999
Article no.: MF72.00006

Drive Belt Motoforce Suzuki Katana after 1999

18,00 €
In stock
MotoForce Racing
CVT Racing Pulley Minarelli CPI / Keeway 16mm
Article no.: MF78.19805

CVT Racing Pulley Minarelli CPI / Keeway 16mm

18,00 €
In stock
RRP
25,00 €
-28% Discount
Sale
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Scooter CVT

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 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 based on engine speed. Although systems 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).

Note: 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.

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.

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

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

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 an increased diameter (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, or Stage6, 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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