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Transmission

(3001 products)
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Axle other Chain Chain accessories Chain guard Chain guide Chain kit Chain master link Chain roller Chain slider Chain tensioner Chassis screws Circlip Clutch accessories Clutch kit Crankshaft accessories CVT sliders Engine case accessories Fairing Front sprocket Gearbox Gearbox accessories Gearbox bearing kit Gearshift lever Ignition lock Kickstarter accessories Oil seal kit Piston pin bearing Pulley Pulley gear Chain rear sprocket Repair kit Screw kit Screws other Tank accessories Transmission Transmission accessories Transmission gear Washer Wheel axle Woodruff key
Brand
AFAM Algi Aprilia Avoc Beta Buzzetti Conti CPI D.I.D Derbi Doppler GY6 Hot Rods IGM Iris Italjet Jasil KMC KRM Kymco Malossi Moose Racing Moto Master MotoForce MotoForce Racing Peugeot Piaggio Polini Polisport Pro Circuit Prox Renthal RFX Rieju RMS Scar Schmitt Stage6 Stage6 R/T Standard Parts STR8 Swiing Top Performances UFO Voca Racing Volt Racing Yamaha YCF YCF Factory
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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 XS-Ring reinforced black A525 XMR3
Article no.: AFAM525XMR3

Chain Rivet Master Link AFAM XS-Ring reinforced black A525 XMR3

5,10 €
In stock
AFAM
Chain Rivet Master Link AFAM reinforced gold A428 R1-G
Article no.: AFAM428R1-G

Chain Rivet Master Link AFAM reinforced gold A428 R1-G

1,90 €
In stock
AFAM
Chain Rivet Master Link AFAM reinforced gold A420 R1-G
Article no.: AFAM420R1-G

Chain Rivet Master Link AFAM reinforced gold A420 R1-G

2,00 €
In stock
AFAM
Chain Rivet Master Link AFAM black A420
Article no.: AFAM420M

Chain Rivet Master Link AFAM black A420

1,70 €
In stock
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
6,70 €
-9% Discount
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
Moose Racing
HPO O-Ring 520 chain Moose Racing
Article no.: MRM57300_MASTER

HPO O-Ring 520 chain Moose Racing

from 79,50 €
In stock
81,00 €
-2% Discount
Moose Racing
FB O-Ring 520 Chain Moose Racing
Article no.: MR122200_MASTER

FB O-Ring 520 Chain Moose Racing

from 121,00 €
In stock
Moose Racing
RXP Pro-MX420 Chain Moose Racing
Article no.: MRM57600_MASTER

RXP Pro-MX420 Chain Moose Racing

from 27,50 €
In stock
Moose Racing
RXP Pro-MX 428 Chain Moose Racing
Article no.: MRM57500_MASTER

RXP Pro-MX 428 Chain Moose Racing

from 31,50 €
In stock
Moose Racing
Moose Racing RXP Pro-MX 520 Chain
Article no.: MRM57400_MASTER

Moose Racing RXP Pro-MX 520 Chain

from 74,00 €
In stock
77,00 €
-4% Discount
Piaggio
Wheel Axle Piaggio 4-stroke 4V
Article no.: OE-PIA8416875

Wheel Axle Piaggio 4-stroke 4V

84,50 €
In stock
Piaggio
Countershaft Piaggio NRG, TPH `01-`05, Aprilia SR50R
Article no.: OE-PIA4802185

Countershaft Piaggio NRG, TPH `01-`05, Aprilia SR50R

225,00 €
In stock
Sale
Piaggio
Input Shaft clutch Piaggio Zip2 after 2006
Article no.: OE-PIA4795934

Input Shaft clutch Piaggio Zip2 after 2006

163,00 €
In stock
Peugeot
Countershaft Peugeot/SYM 4-stroke
Article no.: OE-PEU801624

Countershaft Peugeot/SYM 4-stroke

206,00 €
In stock
Peugeot
Input Shaft clutch 12 teeth Peugeot horizontal
Article no.: OE-PEU771879

Input Shaft clutch 12 teeth Peugeot horizontal

90,00 €
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
YCF
Chain Roller Pit Bike YCF50A
Article no.: YCF-50-2201

Chain Roller Pit Bike YCF50A

11,00 €
In stock
YCF
Front Sprocket mud protect d.17mm Pit Bike / Dirt Bike
Article no.: MB22711-152.FMZ/SIZE

Front Sprocket mud protect d.17mm Pit Bike / Dirt Bike

8,50 €
In stock
YCF
Front Sprocket 10 teeth Pit Bike YCF50A
Article no.: MB420H/10T

Front Sprocket 10 teeth Pit Bike YCF50A

8,50 €
In stock
YCF
Swingarm Slider short for cantilever swingarm Pit Bike / Dirt Bike
Article no.: YCF-110-10-021

Swingarm Slider short for cantilever swingarm Pit Bike / Dirt Bike

5,50 €
In stock
RRP
11,00 €
-50% Discount
YCF
Swingarm Slider left side Pit Bike Zongshen 190cc
Article no.: MB100061491

Swingarm Slider left side Pit Bike Zongshen 190cc

2,20 €
In stock
RRP
4,30 €
-49% Discount
YCF Factory
Rear Sprocket aluminium CNC 420 - 47 teeth - 4 screws YCF Pit Bike
Article no.: MBCA06R.47/COLOR

Rear Sprocket aluminium CNC 420 - 47 teeth - 4 screws YCF Pit Bike

from 20,50 €
In stock
YCF Factory
Rear Sprocket aluminium CNC 420 - 45 teeth - 5 screws YCF Pit Bike
Article no.: MBCA16R.45/COLOR

Rear Sprocket aluminium CNC 420 - 45 teeth - 5 screws YCF Pit Bike

41,50 €
In stock
YCF Factory
Rear Sprocket aluminium CNC 420 - 45 teeth - 4 screws YCF Pit Bike
Article no.: MBCA06R.45/COLOR

Rear Sprocket aluminium CNC 420 - 45 teeth - 4 screws YCF Pit Bike

41,50 €
In stock
YCF Factory
Rear Sprocket aluminium CNC 420 - 43 teeth - 5 screws YCF Pit Bike
Article no.: MBCA16R.43/COLOR

Rear Sprocket aluminium CNC 420 - 43 teeth - 5 screws YCF Pit Bike

41,50 €
In stock
YCF Factory
Rear Sprocket aluminium CNC 420 - 43 teeth - 4 screws YCF Pit Bike
Article no.: MBCA06R.43/COLOR

Rear Sprocket aluminium CNC 420 - 43 teeth - 4 screws YCF Pit Bike

41,50 €
In stock
YCF Factory
Rear Sprocket aluminium CNC 420 - 41 teeth - 5 screws YCF Pit Bike
Article no.: MBCA16R.41/COLOR

Rear Sprocket aluminium CNC 420 - 41 teeth - 5 screws YCF Pit Bike

41,50 €
In stock
YCF Factory
Rear Sprocket aluminium CNC 420 - 41 teeth - 4 screws YCF Pit Bike
Article no.: MBCA06R.41/COLOR

Rear Sprocket aluminium CNC 420 - 41 teeth - 4 screws YCF Pit Bike

41,50 €
In stock
YCF Factory
Rear Sprocket aluminium CNC 420 - 37 teeth - 4 screws YCF Pit Bike
Article no.: MBCA06R.37/COLOR

Rear Sprocket aluminium CNC 420 - 37 teeth - 4 screws YCF Pit Bike

41,50 €
In stock
YCF
Mounting Bracket screws rear sprocket x1 Pit Bike / Dirt Bike
Article no.: YCF-110-11-03

Mounting Bracket screws rear sprocket x1 Pit Bike / Dirt Bike

2,20 €
In stock
YCF
Secondary Gears d.17mm Pit Bike YX 125cc
Article no.: MBE13K040

Secondary Gears d.17mm Pit Bike YX 125cc

40,00 €
In stock
Sale
YCF
Primary Transmission Pit Bike Lifan 88SE / 125SE
Article no.: MB23220-D002-0000

Primary Transmission Pit Bike Lifan 88SE / 125SE

26,50 €
In stock
RRP
53,00 €
-50% Discount
Buzzetti
Chain Tensioner Buzzetti universal cyclomoteurs 12x7x47mm
Article no.: BZA30233

Chain Tensioner Buzzetti universal cyclomoteurs 12x7x47mm

3,80 €
In stock
Standard Parts
Front Sprocket 18 teeth Puch Maxi
Article no.: MOF-28894

Front Sprocket 18 teeth Puch Maxi

4,40 €
In stock
Standard Parts
Front Sprocket 17 teeth Puch Maxi
Article no.: MOF-28893
1

Front Sprocket 17 teeth Puch Maxi

3,60 €
In stock
Standard Parts
Front Sprocket 16 teeth Puch Maxi
Article no.: MOF-28892

Front Sprocket 16 teeth Puch Maxi

4,10 €
In stock
Standard Parts
Front Sprocket 13 teeth Puch Maxi
Article no.: MOF-28890

Front Sprocket 13 teeth Puch Maxi

3,80 €
In stock
Standard Parts
Front Sprocket 12 teeth Puch Maxi
Article no.: MOF-28888

Front Sprocket 12 teeth Puch Maxi

3,50 €
In stock
Standard Parts
Front Sprocket 11 teeth Puch Maxi
Article no.: MOF-28887

Front Sprocket 11 teeth Puch Maxi

3,50 €
In stock
Standard Parts
Front Sprocket 10 teeth Puch Maxi
Article no.: MOF-28886

Front Sprocket 10 teeth Puch Maxi

3,30 €
In stock
Standard Parts
Rear Sprocket 45 teeth Puch Maxi silver
Article no.: MOF-34241

Rear Sprocket 45 teeth Puch Maxi silver

10,50 €
In stock
Doppler
Chain Kit aluminium blue 13x53 - 428 Doppler Sherco 50cc
Article no.: CGN509947

Chain Kit aluminium blue 13x53 - 428 Doppler Sherco 50cc

93,00 €
In stock
Sale
Doppler
Chain Kit aluminium Neochrome 13x53 - 420 Rieju MRT / Yamaha DT
Article no.: CGN509945

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

95,00 €
In stock
Sale
Doppler
Chain Kit aluminium Neochrome 14x53 - 420 Doppler Derbi GPR / Aprilia RS4
Article no.: CGN509943

Chain Kit aluminium Neochrome 14x53 - 420 Doppler Derbi GPR / Aprilia RS4

95,00 €
In stock
Sale
Doppler
Chain Kit aluminium Neochrome 13x53 - 428 Doppler Beta RR
Article no.: CGN509940

Chain Kit aluminium Neochrome 13x53 - 428 Doppler Beta RR

93,00 €
In stock
Sale
Doppler
Chain Kit aluminium Neochrome 13x53 - 420 Doppler Beta RR
Article no.: CGN509939

Chain Kit aluminium Neochrome 13x53 - 420 Doppler Beta RR

95,00 €
In stock
Sale
Doppler
Rear Sprocket 53 teeth - 420 Doppler Alu CNC neochrome Rieju MRT
Article no.: CGN505503

Rear Sprocket 53 teeth - 420 Doppler Alu CNC neochrome Rieju MRT

58,00 €
In stock
Sale
Doppler
Rear Sprocket 53 teeth - 420 Doppler Alu CNC neochrome Derbi DRD Pro
Article no.: CGN505502

Rear Sprocket 53 teeth - 420 Doppler Alu CNC neochrome Derbi DRD Pro

69,50 €
In stock
Doppler
Rear Sprocket 53 teeth - 420 Doppler Alu CNC Neochrome Beta RR
Article no.: CGN505501

Rear Sprocket 53 teeth - 420 Doppler Alu CNC Neochrome Beta RR

58,00 €
In stock
Sale
Doppler
Rear Sprocket 53 teeth - 428 Doppler Alu CNC neochrome Sherco Enduro 50
Article no.: CGN505499

Rear Sprocket 53 teeth - 428 Doppler Alu CNC neochrome Sherco Enduro 50

64,00 €
In stock
Sale
Doppler
Chain Kit aluminium black 13x53 - 428 Doppler Beta RR
Article no.: CGN504014

Chain Kit aluminium black 13x53 - 428 Doppler Beta RR

93,00 €
In stock
Sale
Doppler
Chain Kit aluminium red 13x53 - 428 Doppler Beta RR
Article no.: CGN504013

Chain Kit aluminium red 13x53 - 428 Doppler Beta RR

93,00 €
In stock
Sale
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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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