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Transmission

(22 products)
Vespa Classic Gearboxes Chains and Sprockets Gear Drives Transmission Accessories
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Product type
Clutch accessories Engine cover Gearbox Gearbox accessories Transmission Transmission accessories Woodruff key
Brand
Buzzetti Malossi Polini RMS Stage6 Standard Parts
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Stage6
Stage6 Inspection Lid Screw for transmission cover Yamaha BW's / Aerox
Article no.: S6-22166ET06

Stage6 Inspection Lid Screw for transmission cover Yamaha BW's / Aerox

2,00 €
In stock
RRP
5,00 €
-60% Discount
Polini
Gear Selector 4-speed Polini (H=51mm) Vespa Primavera 50 - 125cc ET3 before 1979
Article no.: P230.0405

Gear Selector 4-speed Polini (H=51mm) Vespa Primavera 50 - 125cc ET3 before 1979

101,00 €
In stock
RMS
Driveshaft RMS Vespa PX / PXE 125 - 200cc
Article no.: R100240120

Driveshaft RMS Vespa PX / PXE 125 - 200cc

52,50 €
In stock
RRP
105,00 €
-50% Discount
RMS
Gear Selector Box RMS Vespa PX 125 - 200cc Arcobaleno (VNX2T-VLX1T-VXS1T-VNR1T)
Article no.: R100221020

Gear Selector Box RMS Vespa PX 125 - 200cc Arcobaleno (VNX2T-VLX1T-VXS1T-VNR1T)

8,80 €
In stock
RRP
17,50 €
-50% Discount
RMS
Gear Selector 3-speed RMS (h=51mm) RMS Vespa 50 - 90cc
Article no.: R100220120

Gear Selector 3-speed RMS (h=51mm) RMS Vespa 50 - 90cc

26,50 €
In stock
RRP
52,50 €
-50% Discount
Polini
Primary Transmission Polini 24/61 helical Vespa 125 PK / Primavera
Article no.: P202.1220

Primary Transmission Polini 24/61 helical Vespa 125 PK / Primavera

64,00 €
In stock
Buzzetti
Woodruff Key clutch basket Buzzetti 10x3x3mm APE / Vespa
Article no.: WB-30423

Woodruff Key clutch basket Buzzetti 10x3x3mm APE / Vespa

1,70 €
In stock
Polini
Cruciform Polini Vespa PX 125 - 200cc
Article no.: P230.0403

Cruciform Polini Vespa PX 125 - 200cc

27,00 €
Ready for dispatch shortly
Polini
Gear Selector 4-speed Polini (H=50,2mm) Vespa Primavera 50 - 125cc ET3 after 1979
Article no.: P230.0402

Gear Selector 4-speed Polini (H=50,2mm) Vespa Primavera 50 - 125cc ET3 after 1979

101,00 €
Ready for dispatch shortly
Polini
Input Shaft and Gears Polini 10-14-17-20 Vespa Smallframe 50 / 125cc
Article no.: P202.1417

Input Shaft and Gears Polini 10-14-17-20 Vespa Smallframe 50 / 125cc

137,00 €
Ready for dispatch shortly
Standard Parts
Countershaft 4-speed 22-18-14-10 teeth Vespa 50-90 / Primavera / ET3 / PK / PK XL
Article no.: 36476
1

Countershaft 4-speed 22-18-14-10 teeth Vespa 50-90 / Primavera / ET3 / PK / PK XL

76,00 €
Ready for dispatch shortly
RMS
Gear Selector Cover RMS chrome Vespa PX 125 - 150cc / PE 200cc
Article no.: R142580110

Gear Selector Cover RMS chrome Vespa PX 125 - 150cc / PE 200cc

6,60 €
Currently not in stock
Malossi
Input Shaft Malossi Racing, 10-15-18-20 teeth, Vespa Smallframe (ET3 / ETS / PK / PK XL / V50)
Article no.: M6716207

Input Shaft Malossi Racing, 10-15-18-20 teeth, Vespa Smallframe (ET3 / ETS / PK / PK XL / V50)

174,00 €
Currently not in stock
Malossi
Input Shaft Malossi Sport, 10-14-17-20 teeth, Vespa Smallframe (ET3 / ETS / PK / PK XL / V50)
Article no.: M6716696

Input Shaft Malossi Sport, 10-14-17-20 teeth, Vespa Smallframe (ET3 / ETS / PK / PK XL / V50)

167,00 €
Currently not in stock
Malossi
Primary Transmission Malossi 24/63 Vespa Cosa / PXE 200cc
Article no.: M675235

Primary Transmission Malossi 24/63 Vespa Cosa / PXE 200cc

172,00 €
Currently not in stock
Malossi
Primary Transmission Malossi 23/64 Vespa Cosa / PX 125cc
Article no.: M673730

Primary Transmission Malossi 23/64 Vespa Cosa / PX 125cc

172,00 €
Currently not in stock
Polini
Primary Transmission Polini Z=27-69 Vespa 125cc Primavera / PK
Article no.: P202.1222

Primary Transmission Polini Z=27-69 Vespa 125cc Primavera / PK

183,00 €
Currently not in stock
Polini
Primary Transmission Polini Z=24-72 Vespa 125cc Primavera / PK
Article no.: P202.1221

Primary Transmission Polini Z=24-72 Vespa 125cc Primavera / PK

214,00 €
Currently not in stock
RMS
Primary Transmission RMS Z=24-61 Vespa PK 50-125cc ET3
Article no.: R100240140

Primary Transmission RMS Z=24-61 Vespa PK 50-125cc ET3

65,00 €
Currently not in stock
RMS
Transmission / Clutch Repair Kit RMS Vespa Primavera 50 - 125cc
Article no.: R100300080

Transmission / Clutch Repair Kit RMS Vespa Primavera 50 - 125cc

4,80 €
Currently not in stock
RMS
Gear Selector 4-speed RMS (h=51mm) RMS Vespa Primavera / ET3 50 - 125cc
Article no.: R100220110

Gear Selector 4-speed RMS (h=51mm) RMS Vespa Primavera / ET3 50 - 125cc

46,50 €
Currently not in stock
Polini
Primary Transmission Polini 23 / 60 Vespa 125cc Primavera / PK
Article no.: P202.1213

Primary Transmission Polini 23 / 60 Vespa 125cc Primavera / PK

218,00 €
Currently not in stock

The gearbox - tuning via gear ratio

The gearbox or transmission is a mechanical device that transmits a motion from one part to another, with the possibility of changing speed and torque by gearing up or gearing down. In a scooter, there is the primary transmission (input shaft to torque drive + intermediate shaft) and secondary transmission (intermediate shaft + output shaft to wheel). The gear ratio has a great impact on acceleration and top speed. A short gear ratio gives good acceleration, but is a little weak on speed, which can be compensated by a longer gear ratio.

Since the gearbox is a very complex subject, here we have a gearbox tutorial for you that will help you choose your new gear ratio.

The complex world of gear ratios

Do you simply want to replace gearbox components because they are defective or worn? Or do you want to adjust the gear ratio after upgrading to a more powerful cylinder? In both cases, we recommend replacing both primary and secondary gears at the same time.

For very powerful engines, we recommend selecting the gears in a way that the final drive ratio can adequately convert the power delivered by the engine. Using a longer gear ratio may actually worsen acceleration, so you should always match the gearbox to the available RPM. Longer does not always mean better, it is best to get enough information before installing new gears!

In our online store we carry a wide range of individual gears and complete gearboxess for most scooters, mopeds and maxi scooters. Leading brands such as

offer top quality products at fair prices, with which you can improve the performance of your engine.

If you simply want to overhaul your gearbox, we also carry original spare parts for you, for manufacturers like

and many more.

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