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Transmission

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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 Engine cover 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
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AFAM Algi Aprilia Avoc Beta Bidalot 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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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
Standard Parts
Pedal Shaft Puch Maxi NM
Article no.: MOF-40226

Pedal Shaft Puch Maxi NM

24,00 €
In stock
Doppler
Chain Kit aluminium blue 13x53 - 428 Doppler Sherco 50cc
Article no.: CGN509947

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

94,00 €
In stock
99,00 €
-5% Discount
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

94,00 €
In stock
109,00 €
-14% Discount
Sale
Doppler
Chain Kit aluminium blue 13x53 - 420 Rieju MRT
Article no.: CGN509944

Chain Kit aluminium blue 13x53 - 420 Rieju MRT

99,00 €
In stock
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

109,00 €
In stock
Doppler
Chain Kit aluminium Neochrome 14x53 - 420 Doppler Derbi Senda X-treme
Article no.: CGN509942

Chain Kit aluminium Neochrome 14x53 - 420 Doppler Derbi Senda X-treme

109,00 €
In stock
Doppler
Chain Kit aluminium Neochrome 13x53 - 428 Doppler Beta RR
Article no.: CGN509940

Chain Kit aluminium Neochrome 13x53 - 428 Doppler Beta RR

109,00 €
In stock
Doppler
Chain Kit aluminium Neochrome 13x53 - 420 Doppler Beta RR
Article no.: CGN509939

Chain Kit aluminium Neochrome 13x53 - 420 Doppler Beta RR

93,00 €
In stock
109,00 €
-15% Discount
Sale
Doppler
Rear Sprocket 53 teeth - 420 Doppler Alu CNC Néochrome Aprilia SX 50
Article no.: CGN505504

Rear Sprocket 53 teeth - 420 Doppler Alu CNC Néochrome Aprilia SX 50

69,50 €
In stock
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

69,50 €
In stock
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

69,50 €
In stock
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

67,00 €
In stock
69,50 €
-4% Discount
Sale
Doppler
Chain Kit aluminium black 13x53 - 428 Doppler Beta RR
Article no.: CGN504014

Chain Kit aluminium black 13x53 - 428 Doppler Beta RR

95,00 €
In stock
99,00 €
-4% Discount
Sale
Doppler
Chain Kit aluminium red 13x53 - 428 Doppler Beta RR
Article no.: CGN504013

Chain Kit aluminium red 13x53 - 428 Doppler Beta RR

95,00 €
In stock
99,00 €
-4% Discount
Sale
Doppler
Chain Kit aluminium black 13x53 - 420 Doppler Beta RR
Article no.: CGN504012

Chain Kit aluminium black 13x53 - 420 Doppler Beta RR

89,50 €
In stock
99,00 €
-10% Discount
Sale
Doppler
Chain Kit aluminium red 13x53 - 420 Doppler Beta RR
Article no.: CGN504011

Chain Kit aluminium red 13x53 - 420 Doppler Beta RR

99,00 €
In stock
Doppler
Chain Kit aluminium red 13x53 - 428 Doppler Sherco 50cc
Article no.: CGN504010

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

95,00 €
In stock
99,00 €
-4% Discount
Sale
Doppler
Chain Kit aluminium black 13x53 - 428 Doppler Sherco 50cc
Article no.: CGN504009

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

99,00 €
In stock
Doppler
Chain Kit aluminium black 13x53 - 420 Doppler Rieju MRT / Yamaha DT
Article no.: CGN503783

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

99,00 €
In stock
Doppler
Chain Kit aluminium black 14x53 - 420 Doppler Derbi GPR / Senda X-treme
Article no.: CGN503782

Chain Kit aluminium black 14x53 - 420 Doppler Derbi GPR / Senda X-treme

99,00 €
In stock
Doppler
Chain Kit aluminium red 14x53 - 420 Doppler Derbi Senda DRD
Article no.: CGN503777

Chain Kit aluminium red 14x53 - 420 Doppler Derbi Senda DRD

99,00 €
In stock
MotoForce
Chain Master Link chain size 415
Article no.: MF89.00400

Chain Master Link chain size 415

2,60 €
Ready for dispatch shortly
Malossi
Primary Gears Malossi Malossi Piaggio Ciao
Article no.: M677021

Primary Gears Malossi Malossi Piaggio Ciao

194,00 €
Ready for dispatch shortly
Malossi
Primary Gears Malossi HTQ 13/35 Honda Camino
Article no.: MOF-M.676416

Primary Gears Malossi HTQ 13/35 Honda Camino

88,00 €
Ready for dispatch shortly
Moose Racing
Screw / Bolt Kit Rear Sprocket
Article no.: MR24011276

Screw / Bolt Kit Rear Sprocket

12,50 €
Ready for dispatch shortly
Moose Racing
Spare Rail for Chain Guide Moose Racing
Article no.: MR12310198

Spare Rail for Chain Guide Moose Racing

18,00 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing YZF 250 after 2014
Article no.: MR09350848

Oil Seal Set countershaft Moose Racing YZF 250 after 2014

27,50 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing TC / SX 125
Article no.: MR09350847

Oil Seal Set countershaft Moose Racing TC / SX 125

26,50 €
Ready for dispatch shortly
Moose Racing
Snap Rings sprocket (x10) Moose Racing SX 65 / 85
Article no.: MR09350494

Snap Rings sprocket (x10) Moose Racing SX 65 / 85

26,50 €
Ready for dispatch shortly
Moose Racing
Snap Rings sprocket (x10) Moose Racing SX / EXC 125 - 300
Article no.: MR09350493

Snap Rings sprocket (x10) Moose Racing SX / EXC 125 - 300

31,00 €
Ready for dispatch shortly
Moose Racing
Snap Rings sprocket (x10) Moose Racing KX 65 / 85
Article no.: MR09350492

Snap Rings sprocket (x10) Moose Racing KX 65 / 85

25,50 €
Ready for dispatch shortly
Moose Racing
Snap Rings sprocket (x10) Moose Racing KXF 250 / RM 250
Article no.: MR09350491

Snap Rings sprocket (x10) Moose Racing KXF 250 / RM 250

16,00 €
Ready for dispatch shortly
Moose Racing
Snap Rings sprocket (x10) Moose Racing RM-Z 450 / KX 500
Article no.: MR09350490

Snap Rings sprocket (x10) Moose Racing RM-Z 450 / KX 500

14,00 €
Ready for dispatch shortly
Moose Racing
Washers starlock sprocket (x10) Moose Racing Yamaha YZF / KXF 450
Article no.: MR09350488

Washers starlock sprocket (x10) Moose Racing Yamaha YZF / KXF 450

30,50 €
Ready for dispatch shortly
Moose Racing
Washers starlock sprocket (x10) Moose Racing Yamaha YZ 85 / 125
Article no.: MR09350487

Washers starlock sprocket (x10) Moose Racing Yamaha YZ 85 / 125

33,00 €
Ready for dispatch shortly
Moose Racing
Washers starlock sprocket (x10) Moose Racing YZ 250
Article no.: MR09350483

Washers starlock sprocket (x10) Moose Racing YZ 250

36,50 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing RM-Z 450
Article no.: MR09350455

Oil Seal Set countershaft Moose Racing RM-Z 450

23,00 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing RM 125
Article no.: MR09350454

Oil Seal Set countershaft Moose Racing RM 125

23,00 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing RM-Z 250 2013-2017
Article no.: MR09350453

Oil Seal Set countershaft Moose Racing RM-Z 250 2013-2017

21,50 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing YZ 125 after 2005
Article no.: MR09350448

Oil Seal Set countershaft Moose Racing YZ 125 after 2005

21,50 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing YZ 250 1990-1998
Article no.: MR09350447

Oil Seal Set countershaft Moose Racing YZ 250 1990-1998

22,00 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing YZ 250 after 1999
Article no.: MR09350446

Oil Seal Set countershaft Moose Racing YZ 250 after 1999

25,00 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing KX 60 / 65
Article no.: MR09350444

Oil Seal Set countershaft Moose Racing KX 60 / 65

21,50 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing KX 250
Article no.: MR09350441

Oil Seal Set countershaft Moose Racing KX 250

28,50 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing RM-Z 250 2004-2006
Article no.: MR09350440

Oil Seal Set countershaft Moose Racing RM-Z 250 2004-2006

22,00 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing KXF 250
Article no.: MR09350439

Oil Seal Set countershaft Moose Racing KXF 250

27,50 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing CR 125
Article no.: MR09350437

Oil Seal Set countershaft Moose Racing CR 125

21,50 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing CR 125 / CRF 250
Article no.: MR09350436

Oil Seal Set countershaft Moose Racing CR 125 / CRF 250

21,50 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing TC / SX 65
Article no.: MR09350433

Oil Seal Set countershaft Moose Racing TC / SX 65

21,50 €
Ready for dispatch shortly
Moose Racing
Oil Seal Set countershaft Moose Racing TC / SX 85
Article no.: MR09350432

Oil Seal Set countershaft Moose Racing TC / SX 85

23,00 €
Ready for dispatch shortly
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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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