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Transmission

(586 products)
50cc Bike Gearboxes Chains and Sprockets Gear Drives Transmission Accessories
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Product type
Chain Chain accessories Chain guard Chain guide Chain kit Chain master link Chain roller Chain slider Chain tensioner Clutch accessories Clutch kit Crankshaft accessories Fairing Front sprocket Gearbox Gearbox accessories Gearbox bearing kit Chain rear sprocket Screws other Transmission accessories Transmission gear
Brand
AFAM Avoc Beta Conti Derbi Doppler IGM Jasil KRM Moose Racing MotoForce MotoForce Racing Piaggio Polisport Rieju Stage6 Standard Parts STR8 Top Performances Voca Racing Yamaha
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AFAM
Rear Sprocket Afam steel 46 teeth - 428 Beta RR
Article no.: 1074640001

Rear Sprocket Afam steel 46 teeth - 428 Beta RR

25,00 €
In stock
AFAM
Front Sprocket AFAM 15 teeth 428 Yamaha / Beta / HM / Rieju 125
Article no.: AFAM21208-15

Front Sprocket AFAM 15 teeth 428 Yamaha / Beta / HM / Rieju 125

6,10 €
In stock
AFAM
Front Sprocket AFAM 13 teeth 428 Yamaha / Beta / HM / Rieju 125cc
Article no.: AFAM21208-13

Front Sprocket AFAM 13 teeth 428 Yamaha / Beta / HM / Rieju 125cc

5,20 €
In stock
AFAM
Front Sprocket AFAM 13 teeth 415 Aprilia RS 50 93 - 98
Article no.: AFAM94108-13

Front Sprocket AFAM 13 teeth 415 Aprilia RS 50 93 - 98

7,50 €
In stock
AFAM
Chain Kit AFAM 15x53 - 420 Derbi Senda X-treme
Article no.: AFAMKS-A-173

Chain Kit AFAM 15x53 - 420 Derbi Senda X-treme

44,00 €
In stock
AFAM
Chain Kit AFAM 14x62 HM-Moto CRE 125 Baja after 2011
Article no.: AFAMKS-A-43

Chain Kit AFAM 14x62 HM-Moto CRE 125 Baja after 2011

86,00 €
In stock
AFAM
Chain Kit AFAM 14x53 Aprilia RS / Derbi GPR
Article no.: AFAMKS-A-169

Chain Kit AFAM 14x53 Aprilia RS / Derbi GPR

44,00 €
In stock
AFAM
Chain Kit AFAM 13x48 Yamaha DT 1993 - 1997
Article no.: AFAMKS-A-64

Chain Kit AFAM 13x48 Yamaha DT 1993 - 1997

39,50 €
In stock
AFAM
Chain Kit AFAM 12x60 - 428 Sherco before 2016
Article no.: AFAMKS-A-102

Chain Kit AFAM 12x60 - 428 Sherco before 2016

55,50 €
In stock
AFAM
Chain Kit AFAM 12x48 Yamaha DT before 1992
Article no.: AFAMKS-A-62

Chain Kit AFAM 12x48 Yamaha DT before 1992

40,00 €
In stock
AFAM
Chain Kit AFAM 12x47 Aprilia RS 50 1999 - 2005
Article no.: AFAMKS-A-137

Chain Kit AFAM 12x47 Aprilia RS 50 1999 - 2005

44,00 €
In stock
AFAM
Chain Kit AFAM 11x62 Yamaha DT / Peugeot XP6
Article no.: AFAMKS-A-125

Chain Kit AFAM 11x62 Yamaha DT / Peugeot XP6

49,50 €
In stock
AFAM
Chain Kit AFAM 11x60 Peugeot XP6
Article no.: AFAMKS-A-134

Chain Kit AFAM 11x60 Peugeot XP6

53,50 €
In stock
AFAM
Chain Kit AFAM 11x60 HM Derapage
Article no.: AFAMKS-A-145

Chain Kit AFAM 11x60 HM Derapage

29,00 €
In stock
RRP
58,00 €
-50% Discount
AFAM
Chain Kit AFAM 11x53 Gilera RCR 50
Article no.: AFAMKS-A-74

Chain Kit AFAM 11x53 Gilera RCR 50

42,00 €
In stock
AFAM
Chain Kit AFAM 11x53 Generic / Keeway
Article no.: AFAMKS-A-111

Chain Kit AFAM 11x53 Generic / Keeway

43,00 €
In stock
AFAM
Chain Kit AFAM 11x52 Rieju Spike
Article no.: AFAMKS-A-129

Chain Kit AFAM 11x52 Rieju Spike

45,50 €
In stock
AFAM
Chain Kit AFAM 11x52 Motorhispania RX before 2007
Article no.: AFAMKS-A-130

Chain Kit AFAM 11x52 Motorhispania RX before 2007

21,00 €
In stock
RRP
42,00 €
-50% Discount
AFAM
Chain Kit AFAM 11x48 Rieju RR
Article no.: AFAMKS-A-126

Chain Kit AFAM 11x48 Rieju RR

42,50 €
In stock
AFAM
Rear Sprocket steel 62 teeth - 428 Afam Rieju MRT
Article no.: AFAM47200-62

Rear Sprocket steel 62 teeth - 428 Afam Rieju MRT

33,00 €
In stock
AFAM
Rear Sprocket steel 62 teeth - 420 AFAM CPI SX / Rieju SMX
Article no.: AFAM116100-62

Rear Sprocket steel 62 teeth - 420 AFAM CPI SX / Rieju SMX

32,00 €
In stock
AFAM
Rear Sprocket steel 60 teeth - 428 Afam Sherco Enduro 50
Article no.: AFAM59104-60

Rear Sprocket steel 60 teeth - 428 Afam Sherco Enduro 50

32,00 €
In stock
AFAM
Rear Sprocket steel 60 teeth - 428 Afam Aprilia SX 50
Article no.: AFAM92220-60

Rear Sprocket steel 60 teeth - 428 Afam Aprilia SX 50

30,50 €
In stock
AFAM
Rear Sprocket steel 60 teeth - 420 Afam Rieju MRT
Article no.: AFAM47103-60

Rear Sprocket steel 60 teeth - 420 Afam Rieju MRT

25,50 €
In stock
AFAM
Rear Sprocket steel 59 teeth - 420 Afam Derbi DRD Pro
Article no.: AFAM41100-59

Rear Sprocket steel 59 teeth - 420 Afam Derbi DRD Pro

19,00 €
In stock
AFAM
Rear Sprocket steel 59 teeth - 420 Afam Aprilia SX 50
Article no.: AFAM92114-59

Rear Sprocket steel 59 teeth - 420 Afam Aprilia SX 50

28,50 €
In stock
AFAM
Rear Sprocket steel 58 teeth - 420 AFAM Beta RR (02 - 05) / Caballero
Article no.: AFAM92115-58

Rear Sprocket steel 58 teeth - 420 AFAM Beta RR (02 - 05) / Caballero

30,00 €
In stock
AFAM
Rear Sprocket steel 56 teeth - 428 Afam Rieju MRT
Article no.: AFAM47200-56

Rear Sprocket steel 56 teeth - 428 Afam Rieju MRT

30,00 €
In stock
AFAM
Rear Sprocket steel 53 teeth - 420 Afam Derbi Senda
Article no.: AFAM92114-53

Rear Sprocket steel 53 teeth - 420 Afam Derbi Senda

20,50 €
In stock
AFAM
Rear Sprocket steel 52 teeth - 420 Afam Peugeot / Rieju
Article no.: AFAM92122-52

Rear Sprocket steel 52 teeth - 420 Afam Peugeot / Rieju

25,50 €
In stock
AFAM
Rear Sprocket steel 52 teeth - 420 Afam Rieju MRT
Article no.: AFAM47103-52

Rear Sprocket steel 52 teeth - 420 Afam Rieju MRT

20,00 €
In stock
AFAM
Rear Sprocket steel 51 teeth - 420 AFAM Beta RR
Article no.: AFAM38101-51

Rear Sprocket steel 51 teeth - 420 AFAM Beta RR

20,50 €
In stock
AFAM
Rear Sprocket steel 50 teeth - 428 Afam Rieju MRT
Article no.: AFAM47200-50

Rear Sprocket steel 50 teeth - 428 Afam Rieju MRT

23,50 €
In stock
AFAM
Rear Sprocket steel 50 teeth - 420 Afam Rieju MRT
Article no.: AFAM47103-50

Rear Sprocket steel 50 teeth - 420 Afam Rieju MRT

19,00 €
In stock
AFAM
Rear Sprocket steel 50 teeth - 420 AFAM Beta RR
Article no.: AFAM38101-50

Rear Sprocket steel 50 teeth - 420 AFAM Beta RR

20,00 €
In stock
AFAM
Rear Sprocket steel 49 teeth - 428 Afam Yamaha TZR
Article no.: AFAM12202-49

Rear Sprocket steel 49 teeth - 428 Afam Yamaha TZR

24,50 €
In stock
AFAM
Rear Sprocket steel 48 teeth - 428 Afam Rieju MRT
Article no.: AFAM47200-48

Rear Sprocket steel 48 teeth - 428 Afam Rieju MRT

21,00 €
In stock
AFAM
Rear Sprocket steel 48 teeth - 420 AFAM Malaguti NKD
Article no.: AFAM146100-48

Rear Sprocket steel 48 teeth - 420 AFAM Malaguti NKD

21,00 €
In stock
AFAM
Rear Sprocket steel 48 teeth - 420 Afam Rieju MRT
Article no.: AFAM47103-48

Rear Sprocket steel 48 teeth - 420 Afam Rieju MRT

17,50 €
In stock
AFAM
Rear Sprocket steel 47 teeth - 420 AFAM Yamaha TZR av.2000
Article no.: AFAM12112-47

Rear Sprocket steel 47 teeth - 420 AFAM Yamaha TZR av.2000

11,00 €
In stock
RRP
21,00 €
-48% Discount
AFAM
Rear Sprocket steel 47 teeth - 420 Afam Yamaha TZR after 2003
Article no.: AFAM12115-47

Rear Sprocket steel 47 teeth - 420 Afam Yamaha TZR after 2003

18,00 €
In stock
AFAM
Rear Sprocket steel 47 teeth - 420 Afam Yamaha TZR 2000-2002
Article no.: AFAM12113-47

Rear Sprocket steel 47 teeth - 420 Afam Yamaha TZR 2000-2002

11,00 €
In stock
RRP
21,00 €
-48% Discount
AFAM
Rear Sprocket steel 47 teeth - 420 AFAM Rieju RS2
Article no.: AFAM80104-47

Rear Sprocket steel 47 teeth - 420 AFAM Rieju RS2

21,00 €
In stock
AFAM
Rear Sprocket steel 47 teeth - 420 Afam Rieju MRT
Article no.: AFAM47103-47

Rear Sprocket steel 47 teeth - 420 Afam Rieju MRT

17,00 €
In stock
AFAM
Rear Sprocket steel 47 teeth - 420 AFAM Aprilia RS
Article no.: AFAM35104-47

Rear Sprocket steel 47 teeth - 420 AFAM Aprilia RS

23,50 €
In stock
AFAM
Rear Sprocket steel 46 teeth - 420 Afam Peugeot XP6
Article no.: AFAM56103-46

Rear Sprocket steel 46 teeth - 420 Afam Peugeot XP6

21,00 €
In stock
AFAM
Chain AFAM XS-Ring reinforced gold 428 XMR-G 146 links
Article no.: AFAM428XMR-G-146

Chain AFAM XS-Ring reinforced gold 428 XMR-G 146 links

74,00 €
In stock
AFAM
Chain Clip Master Link AFAM black A420
Article no.: AFAMRA420M

Chain Clip Master Link AFAM black A420

1,80 €
In stock
AFAM
Chain Rivet Master Link AFAM XS-Ring reinforced gold A428 XMR-G
Article no.: AFAM428XMR-G

Chain Rivet Master Link AFAM XS-Ring reinforced gold A428 XMR-G

2,20 €
In stock
RRP
4,40 €
-50% Discount
AFAM
Chain Rivet Master Link AFAM black A420
Article no.: AFAM420M

Chain Rivet Master Link AFAM black A420

0,90 €
In stock
RRP
1,70 €
-47% Discount
AFAM
Front Sprocket AFAM 420 Minarelli AM6
Article no.: AFAM94119/SIZE
1

Front Sprocket AFAM 420 Minarelli AM6

from 7,00 €
In stock
AFAM
Front Sprocket AFAM 420 Derbi
Article no.: AFAM49102/SIZE

Front Sprocket AFAM 420 Derbi

from 6,10 €
In stock
AFAM
Chain AFAM reinforced gold 428 R1-G
Article no.: AFAM428R1-G/SIZE

Chain AFAM reinforced gold 428 R1-G

from 13,50 €
In stock
AFAM
Chain AFAM reinforced gold 420 R1-G
Article no.: AFAM420R1-G/SIZE

Chain AFAM reinforced gold 420 R1-G

from 14,00 €
In stock
AFAM
Chain AFAM reinforced black 415
Article no.: AFAM415F/SIZE

Chain AFAM reinforced black 415

from 21,00 €
In stock
AFAM
Chain AFAM black 420
Article no.: AFAM420M/SIZE

Chain AFAM black 420

from 17,50 €
In stock
18,00 €
-3% Discount
Moose Racing
RXP Pro-MX420 Chain Moose Racing
Article no.: MRM57600_MASTER

RXP Pro-MX420 Chain Moose Racing

from 27,50 €
In stock
Derbi
Lever gear selector shaft Derbi Euro2
Article no.: OE-DE1A010685

Lever gear selector shaft Derbi Euro2

15,50 €
In stock
Derbi
Screw rear sprocket M8x1.00 - 30mm Derbi
Article no.: OE-DE00022083021

Screw rear sprocket M8x1.00 - 30mm Derbi

2,00 €
In stock
Doppler
Chain Kit aluminium Neochrome 13x53 - 420 Rieju MRT / Yamaha DT
Article no.: CGN509945

Chain Kit aluminium Neochrome 13x53 - 420 Rieju MRT / Yamaha DT

109,00 €
In stock
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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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