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Transmission

(1853 products)
Motocross Gearboxes Chains and Sprockets Gear Drives Transmission Accessories
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Chain Chain accessories Chain guard Chain guide Chain kit Chain master link Chain roller Chain slider Chain tensioner Front sprocket Oil seal kit Chain rear sprocket Repair kit Screw kit Screws other Tank accessories Transmission accessories
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AFAM Conti D.I.D Doppler Hot Rods Moose Racing Moto Master MotoForce Polisport Pro Circuit Prox Renthal RFX Scar Stage6 Standard Parts UFO Voca Racing
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AFAM
Front Sprocket self-cleaning Afam 15 teeth YZ / YZF after 1999
Article no.: 1076561003

Front Sprocket self-cleaning Afam 15 teeth YZ / YZF after 1999

19,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 420 / 14 teeth KX 65 / 85
Article no.: 1076683003

Front Sprocket Afam 420 / 14 teeth KX 65 / 85

6,20 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth Husqvarna TC / TE 250 - 450
Article no.: 1077133002

Front Sprocket Afam 13 teeth Husqvarna TC / TE 250 - 450

17,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth KXF 250
Article no.: 1076262001

Front Sprocket Afam 13 teeth KXF 250

16,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth Kawasaki / Yamaha
Article no.: 1076710004

Front Sprocket Afam 13 teeth Kawasaki / Yamaha

14,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 11 teeth KTM / Husqvarna / Beta
Article no.: 1077138001

Front Sprocket Afam 11 teeth KTM / Husqvarna / Beta

17,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 420 / 12 teeth SX / TC 65
Article no.: 1077163001

Front Sprocket Afam 420 / 12 teeth SX / TC 65

9,10 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 12 teeth RM 125
Article no.: 1075810001

Front Sprocket Afam 12 teeth RM 125

15,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth DR-Z 400
Article no.: 1075855002

Front Sprocket Afam 13 teeth DR-Z 400

17,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 14 teeth KXF 250 2004-2005
Article no.: 1076240002

Front Sprocket Afam 14 teeth KXF 250 2004-2005

16,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth Beta RR LC
Article no.: 1075314001

Front Sprocket Afam 13 teeth Beta RR LC

6,30 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 17 teeth 690 SMC
Article no.: 1077141005

Front Sprocket Afam 17 teeth 690 SMC

20,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 12 teeth Kawasaki / Yamaha
Article no.: 1076710003

Front Sprocket Afam 12 teeth Kawasaki / Yamaha

14,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 12 teeth Husqvarna CR / WR 125 after 1998
Article no.: 1077129001

Front Sprocket Afam 12 teeth Husqvarna CR / WR 125 after 1998

16,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth KX 125 1992-1993
Article no.: 1076688003

Front Sprocket Afam 13 teeth KX 125 1992-1993

16,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 420 / 14 teeth CR 80 / 85
Article no.: 1074490002

Front Sprocket Afam 420 / 14 teeth CR 80 / 85

7,60 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 14 teeth YZ 125 after 2005
Article no.: 1075401003

Front Sprocket Afam 14 teeth YZ 125 after 2005

14,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth YZ 125 1990-2004
Article no.: 1075303004

Front Sprocket Afam 13 teeth YZ 125 1990-2004

14,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth 690 SMC
Article no.: 1077141001

Front Sprocket Afam 13 teeth 690 SMC

16,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 16 teeth Husqvarna TC / TE 250 - 450
Article no.: 1077133005

Front Sprocket Afam 16 teeth Husqvarna TC / TE 250 - 450

20,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 14 teeth Husqvarna CR / WR 250
Article no.: 1076207001

Front Sprocket Afam 14 teeth Husqvarna CR / WR 250

18,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 14 teeth Kawasaki / Yamaha
Article no.: 1076710005

Front Sprocket Afam 14 teeth Kawasaki / Yamaha

14,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth RM-Z / RMX 450
Article no.: 1075953001

Front Sprocket Afam 13 teeth RM-Z / RMX 450

16,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth KXF 450
Article no.: 1076586001

Front Sprocket Afam 13 teeth KXF 450

14,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 420 / 15 teeth KX 65 / 85
Article no.: 1076683004

Front Sprocket Afam 420 / 15 teeth KX 65 / 85

7,10 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth Sherco SE 125 / SE-F 250-300
Article no.: 1076832001

Front Sprocket Afam 13 teeth Sherco SE 125 / SE-F 250-300

28,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 14 teeth Honda CR 250 / CRF 450
Article no.: 1074754003

Front Sprocket Afam 14 teeth Honda CR 250 / CRF 450

16,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth Yamaha YZ / YZF
Article no.: 1076567002

Front Sprocket Afam 13 teeth Yamaha YZ / YZF

13,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 15 teeth RM-Z / RMX 450
Article no.: 1075953003

Front Sprocket Afam 15 teeth RM-Z / RMX 450

17,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 428 / 10 teeth RM 80 / 85
Article no.: 1076608001

Front Sprocket Afam 428 / 10 teeth RM 80 / 85

7,10 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth GasGas EC / Rieju MR 250 / 300
Article no.: 1077179002

Front Sprocket Afam 13 teeth GasGas EC / Rieju MR 250 / 300

18,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 12 teeth CR 125
Article no.: 1074590001

Front Sprocket Afam 12 teeth CR 125

14,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 14 teeth Honda CR 125 / CRF 250
Article no.: 1074622002

Front Sprocket Afam 14 teeth Honda CR 125 / CRF 250

14,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth KX 125 1994-2008
Article no.: 1076174003

Front Sprocket Afam 13 teeth KX 125 1994-2008

14,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 14 teeth RM 125 / RM-Z 250
Article no.: 1075810003

Front Sprocket Afam 14 teeth RM 125 / RM-Z 250

15,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 12 teeth DR-Z 400
Article no.: 1075855001

Front Sprocket Afam 12 teeth DR-Z 400

16,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 14 teeth 690 SMC
Article no.: 1077141002

Front Sprocket Afam 14 teeth 690 SMC

17,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 428 / 12 teeth RM 80 / 85
Article no.: 1076608003

Front Sprocket Afam 428 / 12 teeth RM 80 / 85

7,40 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 11 teeth Kawasaki / Yamaha
Article no.: 1076710002

Front Sprocket Afam 11 teeth Kawasaki / Yamaha

15,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 420 / 15 teeth CR 80 / 85
Article no.: 1074490003

Front Sprocket Afam 420 / 15 teeth CR 80 / 85

8,10 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 428 / 15 teeth YZ 85
Article no.: 1075279003

Front Sprocket Afam 428 / 15 teeth YZ 85

7,30 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 11 teeth GasGas / Yamaha
Article no.: 1075303002

Front Sprocket Afam 11 teeth GasGas / Yamaha

13,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 14 teeth KTM / Husqvarna / Beta
Article no.: 1077138004

Front Sprocket Afam 14 teeth KTM / Husqvarna / Beta

15,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 428 / 15 teeth CR 80 / 85
Article no.: 1074512002

Front Sprocket Afam 428 / 15 teeth CR 80 / 85

9,20 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 428 / 14 teeth RM 80 / 85
Article no.: 1076608005

Front Sprocket Afam 428 / 14 teeth RM 80 / 85

8,10 €
Ready for dispatch shortly
AFAM
Front Sprocket 428 Afam 14 teeth KX 80 / 85
Article no.: 1076131002

Front Sprocket 428 Afam 14 teeth KX 80 / 85

8,10 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 11 teeth KX 125
Article no.: 1076174001

Front Sprocket Afam 11 teeth KX 125

13,50 €
Ready for dispatch shortly
AFAM
Front Sprocket 415 Afam 11 teeth KTM / Husqvarna 50
Article no.: 1077167002

Front Sprocket 415 Afam 11 teeth KTM / Husqvarna 50

12,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 12 teeth YZ 125 1990-2004
Article no.: 1075303003

Front Sprocket Afam 12 teeth YZ 125 1990-2004

14,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 16 teeth Kawasaki / Yamaha
Article no.: 1076710007

Front Sprocket Afam 16 teeth Kawasaki / Yamaha

15,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 12 teeth SMS 125
Article no.: 1077127001

Front Sprocket Afam 12 teeth SMS 125

16,00 €
Ready for dispatch shortly
AFAM
Front Sprocket 420 Afam 16 teeth KX 65 / 85
Article no.: 1076683005

Front Sprocket 420 Afam 16 teeth KX 65 / 85

8,10 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 15 teeth Husqvarna CR / WR 250 1991-1998
Article no.: 1076207002

Front Sprocket Afam 15 teeth Husqvarna CR / WR 250 1991-1998

19,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 10 teeth Yamaha / GasGas
Article no.: 1075303001

Front Sprocket Afam 10 teeth Yamaha / GasGas

13,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth KXF / RM-Z 250
Article no.: 1076240001

Front Sprocket Afam 13 teeth KXF / RM-Z 250

16,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 14 teeth Husqvarna TC / TE 250 - 450
Article no.: 1077133003

Front Sprocket Afam 14 teeth Husqvarna TC / TE 250 - 450

18,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth Honda CR 250 / CRF 450
Article no.: 1074754002

Front Sprocket Afam 13 teeth Honda CR 250 / CRF 450

15,50 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 15 teeth Kawasaki
Article no.: 1076710006

Front Sprocket Afam 15 teeth Kawasaki

15,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 14 teeth RM-Z 450
Article no.: 1075953002

Front Sprocket Afam 14 teeth RM-Z 450

17,00 €
Ready for dispatch shortly
AFAM
Front Sprocket Afam 13 teeth TC 250
Article no.: 1077132002

Front Sprocket Afam 13 teeth TC 250

14,00 €
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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