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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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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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Dayco
V-Belt Dayco Piaggio Fly / Vespa Primavera / Sprint 50 4T
Article no.: VC31191

V-Belt Dayco Piaggio Fly / Vespa Primavera / Sprint 50 4T

18,00 €
Currently not in stock
Dayco
Drive Belt Dayco SYM / Kymco horizontal
Article no.: VC31987

Drive Belt Dayco SYM / Kymco horizontal

22,00 €
Currently not in stock
Dayco
Drive Belt Dayco Power Plus 724mm Piaggio before 1998 short
Article no.: DC32265

Drive Belt Dayco Power Plus 724mm Piaggio before 1998 short

19,00 €
Currently not in stock
Dayco
Drive Belt Dayco Honda Dio / Daelim Message / Cordi / Tapo
Article no.: DC32266

Drive Belt Dayco Honda Dio / Daelim Message / Cordi / Tapo

15,50 €
Currently not in stock
Dayco
V-Belt Dayco Power Plus Honda SFX / SJ Bali / Zenith 50
Article no.: DC32268
1

V-Belt Dayco Power Plus Honda SFX / SJ Bali / Zenith 50

19,50 €
Currently not in stock
Dayco
Drive Belt Dayco Power Plus Minarelli short
Article no.: DC32271

Drive Belt Dayco Power Plus Minarelli short

18,50 €
Currently not in stock
Dayco
Drive Belt Dayco Power Plus Peugeot
Article no.: DC32284
1

Drive Belt Dayco Power Plus Peugeot

18,50 €
Currently not in stock
Dayco
Drive Belt Dayco Power Plus Piaggio after 1998 long
Article no.: DC32290

Drive Belt Dayco Power Plus Piaggio after 1998 long

20,50 €
Currently not in stock
Dayco
V-Belt Dayco Power Plus Honda SH / X8R 50 / SYM Joyride Evo 200ie
Article no.: DC32292

V-Belt Dayco Power Plus Honda SH / X8R 50 / SYM Joyride Evo 200ie

22,00 €
Currently not in stock
Dayco
Drive Belt Dayco Power Plus 804mm Piaggio before 1998 long
Article no.: DC32261

Drive Belt Dayco Power Plus 804mm Piaggio before 1998 long

20,50 €
Currently not in stock
Dayco
Drive Belt Dayco Power Plus Minarelli long
Article no.: DC32263
1

Drive Belt Dayco Power Plus Minarelli long

19,50 €
Currently not in stock
Dayco
Drive Belt Dayco 676mm 139QMB/QMA 10 inch
Article no.: DC32269

Drive Belt Dayco 676mm 139QMB/QMA 10 inch

15,00 €
Currently not in stock
Bando
Drive Belt Bando V/S Minarelli 100 2-stroke
Article no.: VC19985

Drive Belt Bando V/S Minarelli 100 2-stroke

22,00 €
Currently not in stock
Bando
V-Belt Bando V/S 691x18x30mm Honda SFX / Bali / Peugeot SV
Article no.: VC24968

V-Belt Bando V/S 691x18x30mm Honda SFX / Bali / Peugeot SV

24,00 €
Currently not in stock
Bando
Drive Belt Bando V/S 729-18-30 139QMB / QMA 12 inch
Article no.: VC30846

Drive Belt Bando V/S 729-18-30 139QMB / QMA 12 inch

35,00 €
Currently not in stock
Bando
Drive Belt Bando V/S SYM Euro MX / RS Shark 125 / 150ccm
Article no.: VC30859

Drive Belt Bando V/S SYM Euro MX / RS Shark 125 / 150ccm

22,50 €
Currently not in stock
Bando
V-Belt Bando V/S Honda SH50
Article no.: VC30899

V-Belt Bando V/S Honda SH50

33,00 €
Currently not in stock
Bando
Drive Belt Bando V/S Typ 732mm Piaggio after 1998 short
Article no.: VC31180

Drive Belt Bando V/S Typ 732mm Piaggio after 1998 short

25,00 €
Currently not in stock
Piaggio
Variator Restrictor Ring 26x20x4mm Piaggio
Article no.: OE-PIACM100606

Variator Restrictor Ring 26x20x4mm Piaggio

2,20 €
Currently not in stock
Piaggio
Variator Restrictor Ring 26x20x3mm Piaggio
Article no.: OE-PIACM100604

Variator Restrictor Ring 26x20x3mm Piaggio

2,00 €
Currently not in stock
Piaggio
Variator Ramp Plate Piaggio after '99
Article no.: OE-PIA480227

Variator Ramp Plate Piaggio after '99

10,00 €
Currently not in stock
Piaggio
Drive Belt Piaggio short before '98
Article no.: OE-PIA431190

Drive Belt Piaggio short before '98

19,50 €
Currently not in stock
Peugeot
Drive Belt Peugeot/SYM 4-stroke
Article no.: OE-PEU801616

Drive Belt Peugeot/SYM 4-stroke

61,00 €
Currently not in stock
Peugeot
Variator Ramp Plate Peugeot horizontal
Article no.: OE-PEU732744

Variator Ramp Plate Peugeot horizontal

15,00 €
Currently not in stock
Yamaha
Front Pulley Minarelli 4-stroke
Article no.: OE-MIN5C3E76110000

Front Pulley Minarelli 4-stroke

25,00 €
Currently not in stock
Standard Parts
CVT Sport Sym Symphony / Peugeot Speedfight 3 / 4 4T
Article no.: CGN499106

CVT Sport Sym Symphony / Peugeot Speedfight 3 / 4 4T

26,00 €
Currently not in stock
Standard Parts
Drive Belt Bando Sym 50 Orbit 2
Article no.: CGN484336

Drive Belt Bando Sym 50 Orbit 2

28,50 €
Currently not 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 €
Currently not 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 €
Currently not in stock
RRP
152,00 €
-15% Discount
Stage6
Drive Belt Stage6 Pro Belt Piaggio before 1998 short
Article no.: S6-5914004

Drive Belt Stage6 Pro Belt Piaggio before 1998 short

27,00 €
Currently not in stock
RRP
30,00 €
-10% Discount
RMS
CVT Variator RMS Vespa ET2 50cc (before 1998)
Article no.: R100320010

CVT Variator RMS Vespa ET2 50cc (before 1998)

50,00 €
Currently not in stock
Malossi
CVT Malossi Multivar 2000 Peugeot SC
Article no.: M517074

CVT Malossi Multivar 2000 Peugeot SC

90,00 €
Currently not in stock
Malossi
Drive Belt Malossi X-Special Belt Peugeot Rapido
Article no.: M617213

Drive Belt Malossi X-Special Belt Peugeot Rapido

23,00 €
Currently not in stock
Malossi
Drive Belt Malossi X K Belt Cagiva City 50
Article no.: M617664

Drive Belt Malossi X K Belt Cagiva City 50

22,00 €
Currently not in stock
RRP
23,00 €
-4% Discount
Peugeot
CVT Variator Peugeot/SYM 4-stroke
Article no.: OE-PEU801606

CVT Variator Peugeot/SYM 4-stroke

127,00 €
Currently not in stock
Peugeot
V-Belt 723x17,5mm Peugeot 4-stroke Django / Kisbee after '18
Article no.: OE-PEU793204

V-Belt 723x17,5mm Peugeot 4-stroke Django / Kisbee after '18

85,50 €
Currently not in stock
Peugeot
CVT Variator Peugeot 4-stroke Django / Kisbee after '18
Article no.: OE-PEU791323

CVT Variator Peugeot 4-stroke Django / Kisbee after '18

140,00 €
Currently not in stock
Peugeot
Front Pulley Peugeot horizontal
Article no.: OE-PEU764854

Front Pulley Peugeot horizontal

46,50 €
Currently not in stock
Peugeot
Variator Cover Peugeot vertical
Article no.: OE-PEU739050AL

Variator Cover Peugeot vertical

296,00 €
Currently not in stock
Peugeot
CVT Boss 38,60mm Peugeot vertical
Article no.: OE-PEU737591

CVT Boss 38,60mm Peugeot vertical

69,50 €
Currently not in stock
Peugeot
Drive Belt Peugeot vertical
Article no.: OE-PEU729171

Drive Belt Peugeot vertical

52,00 €
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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