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CVT and Drive Belts

(149 products)
Moped Variators CVT Kits CVT Weights Drive Belts Pulleys CVT Accessories
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Product type
Bearing Circlip Clutch hub CVT CVT accessories CVT boss CVT kit CVT sliders CVT weights Engine spring Needle bearing Pulley Pulley accessories V-belt Washer CVT / transmission bolt CVT shim Movable pulley half Pedal shaft
Brand
CBE Dayco Dell'Orto Doppler Hutchinson Malossi MotoForce MotoForce Racing Piaggio Polini Stage6 Stage6 R/T Standard Parts Swiing Top Performances Ventico
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Standard Parts
Needle Cage Variator Sleeve MBK 51 (15x19x22mm)
Article no.: CGN4195

Needle Cage Variator Sleeve MBK 51 (15x19x22mm)

5,40 €
In stock
5,60 €
-4% Discount
Ventico
Ventico Drive Belt D24 smooth MBK 51 / 50 / 41 / 40 / 88
Article no.: CGN4081

Ventico Drive Belt D24 smooth MBK 51 / 50 / 41 / 40 / 88

9,00 €
In stock
9,30 €
-3% Discount
Doppler
CVT Doppler ER3 Peugeot 103 SP / MVL (no clutch)
Article no.: CGN292521

CVT Doppler ER3 Peugeot 103 SP / MVL (no clutch)

169,00 €
In stock
183,00 €
-8% Discount
Standard Parts
Variator Weights OEM quality Peugeot 103 SP / MVL / Vogue
Article no.: CGN285356

Variator Weights OEM quality Peugeot 103 SP / MVL / Vogue

12,00 €
In stock
Sale
Standard Parts
Variator Weights Peugeot 103 SP / MVL / SPX / RCX
Article no.: CGN1974

Variator Weights Peugeot 103 SP / MVL / SPX / RCX

5,80 €
In stock
6,00 €
-3% Discount
Standard Parts
Pedal Shaft smooth MBK Magnum / XR (kick)
Article no.: CGN482641

Pedal Shaft smooth MBK Magnum / XR (kick)

9,10 €
In stock
Standard Parts
Pulley Spacer Peugeot 103 / Vogue 2mm
Article no.: CGN481375

Pulley Spacer Peugeot 103 / Vogue 2mm

0,90 €
In stock
Standard Parts
Pedal Circlip MBK 51 (d=16mm)
Article no.: CGN4278

Pedal Circlip MBK 51 (d=16mm)

0,90 €
In stock
Standard Parts
CVT Variator with clutch OEM quality MBK 51 / 88
Article no.: CGN4188

CVT Variator with clutch OEM quality MBK 51 / 88

76,00 €
In stock
Dayco
Drive Belt Dayco reinforced cogged MBK 51
Article no.: CGN4084

Drive Belt Dayco reinforced cogged MBK 51

14,50 €
In stock
Doppler
Drive Belt Doppler reinforced Peugeot 103 SPX / RCX
Article no.: CGN327129

Drive Belt Doppler reinforced Peugeot 103 SPX / RCX

17,00 €
In stock
20,00 €
-15% Discount
Doppler
Drive Belt Doppler reinforced Peugeot 103 SP / MVL / Vogue
Article no.: CGN327114

Drive Belt Doppler reinforced Peugeot 103 SP / MVL / Vogue

18,00 €
In stock
19,50 €
-8% Discount
Doppler
Drive Belt Doppler reinforced MBK 51
Article no.: CGN327100

Drive Belt Doppler reinforced MBK 51

20,00 €
In stock
Doppler
CVT Variator Doppler ER3 MBK 51 (without clutch)
Article no.: CGN292547

CVT Variator Doppler ER3 MBK 51 (without clutch)

165,00 €
In stock
172,00 €
-4% Discount
Doppler
CVT Doppler ER3 Peugeot 103 SP / MVL / Vogue (w/ clutch)
Article no.: CGN292517

CVT Doppler ER3 Peugeot 103 SP / MVL / Vogue (w/ clutch)

165,00 €
In stock
185,00 €
-11% Discount
Standard Parts
Variator Launch Lever Peugeot 103 / 51 (mopeds)
Article no.: CGN2885

Variator Launch Lever Peugeot 103 / 51 (mopeds)

16,50 €
In stock
Doppler
CVT Doppler ER2 Peugeot 103 SP / MVL / Vogue (with clutch)
Article no.: CGN254946

CVT Doppler ER2 Peugeot 103 SP / MVL / Vogue (with clutch)

150,00 €
In stock
154,00 €
-3% Discount
Standard Parts
Drive Belt (cogged) Peugeot 103 SPX / RCX
Article no.: CGN187513

Drive Belt (cogged) Peugeot 103 SPX / RCX

8,00 €
In stock
Sale
Standard Parts
Drive Belt (cogged) MBK 51
Article no.: CGN187509

Drive Belt (cogged) MBK 51

9,50 €
In stock
Standard Parts
Drive Belt (cogged) Peugeot 103 SP / MVL / Vogue
Article no.: CGN187494

Drive Belt (cogged) Peugeot 103 SP / MVL / Vogue

9,00 €
In stock
Standard Parts
Drive Belt (smooth) MBK 51
Article no.: CGN122017

Drive Belt (smooth) MBK 51

8,30 €
In stock
Standard Parts
Drive Belt smooth Peugeot 103 SP / MVL / Vogue
Article no.: CGN122006

Drive Belt smooth Peugeot 103 SP / MVL / Vogue

4,90 €
In stock
6,70 €
-27% Discount
MotoForce Racing
CVT Variator V.2 Motoforce Racing Piaggio
Article no.: MF75.14010
2

CVT Variator V.2 Motoforce Racing Piaggio

57,00 €
In stock
MotoForce Racing
Drive Belt MotoForce Racing Piaggio after 1998 long
Article no.: MF73.14023

Drive Belt MotoForce Racing Piaggio after 1998 long

19,00 €
In stock
RRP
21,50 €
-12% Discount
Dayco
V-belt Dayco Power Piaggio Bravo 1987 - 1990
Article no.: CGN541945

V-belt Dayco Power Piaggio Bravo 1987 - 1990

16,50 €
In stock
Doppler
Weights 16,75gr clutch Doppler Open (x12)
Article no.: CGN534444

Weights 16,75gr clutch Doppler Open (x12)

21,50 €
In stock
RRP
22,00 €
-2% Discount
Doppler
Pulley Doppler Open multi-plate clutch Peugeot
Article no.: CGN515252

Pulley Doppler Open multi-plate clutch Peugeot

399,00 €
In stock
402,00 €
-1% Discount
Standard Parts
V-belt Peugeot Fox Ventico D502 d.910x13,2mm
Article no.: CGN512688

V-belt Peugeot Fox Ventico D502 d.910x13,2mm

19,00 €
In stock
Polini
Pulley fixed Polini Piaggio Ciao
Article no.: P246.055

Pulley fixed Polini Piaggio Ciao

27,00 €
In stock
RRP
31,00 €
-13% Discount
Standard Parts
Pulley 11 teeth Peugeot 103 SP red
Article no.: CGN510121

Pulley 11 teeth Peugeot 103 SP red

39,50 €
In stock
Standard Parts
Pulley 11 teeth Peugeot 103 SP blue
Article no.: CGN510120

Pulley 11 teeth Peugeot 103 SP blue

39,00 €
In stock
Doppler
Pressure Plate for CVT weights Doppler ER3 (x2)
Article no.: CGN455354

Pressure Plate for CVT weights Doppler ER3 (x2)

2,00 €
In stock
2,20 €
-9% Discount
Standard Parts
Pulley Clamp 12 teeth with spring MBK 51
Article no.: CGN526320

Pulley Clamp 12 teeth with spring MBK 51

4,50 €
In stock
Standard Parts
Pulley Clamp 11 teeth MBK 51
Article no.: CGN515939

Pulley Clamp 11 teeth MBK 51

4,70 €
In stock
Standard Parts
CVT Boss Peugeot 103 SP 15x57mm
Article no.: CGN511866

CVT Boss Peugeot 103 SP 15x57mm

4,60 €
In stock
Standard Parts
Bracket for CVT weights Peugeot 103
Article no.: CGN512223

Bracket for CVT weights Peugeot 103

3,00 €
In stock
Polini
Drive Belt Evo Piaggio after 1998 long
Article no.: U248.029

Drive Belt Evo Piaggio after 1998 long

41,00 €
In stock
RRP
48,00 €
-15% Discount
Polini
Transmission / CVT Kit Polini Hi-Speed Piaggio long
Article no.: U241.672.2

Transmission / CVT Kit Polini Hi-Speed Piaggio long

110,00 €
In stock
RRP
132,00 €
-17% Discount
Swiing
Pulley swiing Pully CNC 85mm Mono Piaggio Ciao
Article no.: MOF-43863

Pulley swiing Pully CNC 85mm Mono Piaggio Ciao

33,00 €
In stock
Swiing
Pulley swiing Pully CNC 80mm Mono Piaggio Ciao
Article no.: MOF-43862

Pulley swiing Pully CNC 80mm Mono Piaggio Ciao

32,00 €
In stock
Swiing
Pulley swiing Pully CNC 70mm Mono Piaggio Ciao
Article no.: MOF-43860

Pulley swiing Pully CNC 70mm Mono Piaggio Ciao

29,00 €
In stock
Polini
Variator + Launch Pedal reinforced Polini Peugeot 103
Article no.: P202.025

Variator + Launch Pedal reinforced Polini Peugeot 103

127,00 €
In stock
RRP
150,00 €
-15% Discount
Doppler
Pulley Doppler Open moped MBK 51 - 11 teeth
Article no.: CGN515262

Pulley Doppler Open moped MBK 51 - 11 teeth

83,00 €
In stock
99,00 €
-16% Discount
Polini
CVT Variator Polini Piaggio Vespino Alx - Delta
Article no.: P241.440

CVT Variator Polini Piaggio Vespino Alx - Delta

81,50 €
In stock
RRP
96,00 €
-15% Discount
Polini
Drive Belt Polini Original Piaggio after 1998 long
Article no.: P248.078

Drive Belt Polini Original Piaggio after 1998 long

32,50 €
In stock
RRP
38,00 €
-14% Discount
Standard Parts
Variator Ramp Plate Honda Camino
Article no.: MOF-41096

Variator Ramp Plate Honda Camino

7,10 €
In stock
Dayco
Drive Belt Dayco Peugeot 103 / 104
Article no.: VC29109

Drive Belt Dayco Peugeot 103 / 104

16,50 €
In stock
Dayco
Drive Belt Dayco Piaggio / Vespa SI
Article no.: VC29114

Drive Belt Dayco Piaggio / Vespa SI

16,00 €
In stock
Dayco
Drive Belt Dayco Power Honda Wallaroo / Peugeot Fox
Article no.: DC32275

Drive Belt Dayco Power Honda Wallaroo / Peugeot Fox

22,50 €
In stock
Dell'Orto
Plastic Washers (CVT inside / outside) Peugeot 103
Article no.: CGN509798

Plastic Washers (CVT inside / outside) Peugeot 103

1,30 €
In stock
Standard Parts
Lube Screw pedals / pulley M5 Peugeot 103 (x1)
Article no.: CGN507026

Lube Screw pedals / pulley M5 Peugeot 103 (x1)

1,70 €
In stock
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 Malossi Multivar MHR Piaggio Si
Article no.: M5118535

CVT Malossi Multivar MHR Piaggio Si

130,00 €
In stock soon
RRP
134,00 €
-3% Discount
Standard Parts
Pulley d=90mm Piaggio Ciao PX
Article no.: CGN3221

Pulley d=90mm Piaggio Ciao PX

5,60 €
In stock soon
Doppler
CVT Variator Doppler ER3 Peugeot 103 SPX / RCX
Article no.: CGN292555

CVT Variator Doppler ER3 Peugeot 103 SPX / RCX

165,00 €
In stock soon
177,00 €
-7% Discount
Doppler
CVT Variator Doppler ER3 MBK 51 kickstarter (with clutch)
Article no.: CGN292536

CVT Variator Doppler ER3 MBK 51 kickstarter (with clutch)

169,00 €
In stock soon
183,00 €
-8% Discount
Doppler
Pulley Doppler Open multi-plate clutch MBK 51
Article no.: CGN515253

Pulley Doppler Open multi-plate clutch MBK 51

399,00 €
In stock soon
411,00 €
-3% Discount
Standard Parts
Pulley mobile MBK 51
Article no.: CGN514563

Pulley mobile MBK 51

26,00 €
In stock soon
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 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
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123

Moped Variator

A moped's CVT system operates through four elements: the variator, the drive belt, the rear pulley, and the engine spring (or torque driver).

A variator or CVT is not standard on all classic mopeds. Depending on the model series and year of manufacture, there are versions with or without a CVT system.

It is important to note that Peugeot, Piaggio, and MBK use different systems.

On a moped equipped with a variator, you have a continuously variable automatic transmission that provides smooth acceleration without shifting jolts.

How a Moped Variator Works:

Variator:

A variator allows the gear ratio to change automatically and variably depending on the engine speed. Although the systems vary, the principle remains the same:

  • The variator is mounted directly on the crankshaft and rotates at engine speed.
  • It consists of a fixed and a movable pulley, with the drive belt running in between. These pulleys are conically shaped.
  • The movable pulley contains centrifugal weights, balls, or rollers: small moving components that move outward due to centrifugal force and move the pulley.
  • Since the drive belt is wedged between the conical pulleys, it slides upward. This changes the gear ratio and the speed (similar to a larger sprocket on a motorcycle: the larger it is, the higher the top speed).

Note: Heavier weights or balls cause the variator to open more slowly, while lighter ones make it open faster. Adjusting these weights is essential after engine upgrades to ensure optimal power transfer.

Drive Belt:

The belt provides the connection between the front pulley (variator) and the rear pulley. It slides from the inside to the outside on the variator to vary the speed.

As the belt rises on the variator, it would actually become too short. How is this compensated for? The answer follows below ↓!

Engine Spring / Torque Driver:

To compensate for the movement of the belt and the change in length, Peugeot and MBK mounted the engine so that it can pivot on an axis. This allows it to swing forward and backward to compensate for the belt length. An engine spring is used to ensure the engine returns to its starting position when letting off the throttle. Like the weights, this spring must be adapted to the engine's power output.

Piaggio, on the other hand, was a pioneer with a torque drive system similar to that of a scooter. The engine does not swing here. There is a second pulley unit at the rear, which also features a fixed and a movable pulley. During acceleration, the drive belt moves inward; when letting off the throttle, the spring pushes the pulley back together.

OEM Variators

Peugeot Variator

On Peugeot models, the movable pulley is pushed by levers with tilting weights. Two opposing levers are fixed on axes and press against the pulley. The weights are screwed onto these levers to adjust the opening speed.

MBK Variator

MBK relies on balls to push the movable pulley. These move in tracks from the inside to the outside (centrifugal force).

Piaggio Variator

Piaggio developed a system with variator weights (rollers) very similar to those used in later scooters. The principle is the same as the MBK balls, but the rollers provide a larger contact surface, making the system more efficient.

Note: These three original systems have a limited adjustment range, and tuning via weights or balls is often difficult.

Sport and Racing Variators for Vintage Mopeds

Tuners quickly realized that for high-performance engines, the entire system must be optimized. As a result, variators based on scooter designs entered the moped world.

Optimized Ramps and Variator Weights

Almost all well-known brands in 50cc tuning now rely on variators with large CVT weights (scooter type). The ramp angles of the pulleys have been optimized and high-quality materials are used. The goal is maximum belt grip combined with high durability. The use of variator weights makes tuning easier due to the huge selection of different weights available.

Moped Variators in Our Shop

In our online shop, you will find all types of variators. Sport and racing models from brands like Malossi, Polini, or Doppler, as well as original replacement parts for authentic restorations. Of course, we also carry matching drive belts (standard or reinforced), rear pulleys, and all types of engine springs.

Naturally, we have all parts in stock for the most common models such as the Peugeot 103, MBK 51, and Piaggio Ciao.

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