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Transmission

(1832 products)
Motocross 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 Fairing Front sprocket Oil seal kit Chain rear sprocket Repair kit Screw kit Screws other Tank accessories Transmission accessories
Brand
AFAM Conti D.I.D Doppler Hot Rods Moose Racing Moto Master MotoForce Polisport Pro Circuit Prox Renthal RFX Scar Stage6 Standard Parts STR8 UFO Voca Racing
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Moose Racing
Rear Sprocket aluminium 520 Moose Racing KTM / Husqvarna 48 teeth black
Article no.: MR12111454

Rear Sprocket aluminium 520 Moose Racing KTM / Husqvarna 48 teeth black

37,00 €
In stock
Sale
Moose Racing
Rear Sprocket aluminium 520 Moose Racing KTM / Husqvarna 45 teeth black
Article no.: MR12111451

Rear Sprocket aluminium 520 Moose Racing KTM / Husqvarna 45 teeth black

39,50 €
In stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing Beta / Husqvarna 42 teeth black
Article no.: MR12111434

Rear Sprocket aluminium 520 Moose Racing Beta / Husqvarna 42 teeth black

39,50 €
In stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing Beta / Honda 49 teeth black
Article no.: MR12111416

Rear Sprocket aluminium 520 Moose Racing Beta / Honda 49 teeth black

20,00 €
In stock
RRP
39,50 €
-49% Discount
Moose Racing
Rear Sprocket aluminium 428 Moose Racing RM / YZ 85 50 teeth blue
Article no.: MR12111614

Rear Sprocket aluminium 428 Moose Racing RM / YZ 85 50 teeth blue

37,00 €
In stock
Sale
Moose Racing
Rear Sprocket aluminium 520 Moose Racing KTM / Husqvarna 50 teeth orange
Article no.: MR12111662

Rear Sprocket aluminium 520 Moose Racing KTM / Husqvarna 50 teeth orange

39,50 €
In stock
Moose Racing
Rear Sprocket aluminium 420 Moose Racing TC / SX 65 46 teeth orange
Article no.: MR12111655

Rear Sprocket aluminium 420 Moose Racing TC / SX 65 46 teeth orange

39,50 €
In stock
Standard Parts
Rear Sprocket 60 teeth - 420 d. 100mm red Beta RR
Article no.: SP-40592/RE

Rear Sprocket 60 teeth - 420 d. 100mm red Beta RR

26,00 €
In stock
Standard Parts
Rear Sprocket 51 teeth - 420 d. 100mm red Beta RR
Article no.: SP-37396/RE

Rear Sprocket 51 teeth - 420 d. 100mm red Beta RR

25,50 €
In stock
Standard Parts
Rear Sprocket 50 teeth - 420 d. 100mm red Beta RR
Article no.: SP-40580/RE

Rear Sprocket 50 teeth - 420 d. 100mm red Beta RR

22,50 €
In stock
Doppler
Rear Sprocket 53 teeth - 428 Doppler aluminium CNC black Beta RR
Article no.: CGN500931

Rear Sprocket 53 teeth - 428 Doppler aluminium CNC black Beta RR

54,50 €
In stock
AFAM
Chain reinforced 134 links 428 gold
Article no.: AFAM485375

Chain reinforced 134 links 428 gold

28,50 €
In stock
Doppler
Rear Sprocket 53 teeth / 428 chain Doppler CNC aluminium red Beta RR
Article no.: CGN496464
1

Rear Sprocket 53 teeth / 428 chain Doppler CNC aluminium red Beta RR

54,50 €
In stock
Standard Parts
Roller for Chain Tensioner size=32mm inner diameter 8mm
Article no.: CGN440593
3

Roller for Chain Tensioner size=32mm inner diameter 8mm

9,40 €
In stock
Doppler
Rear Sprocket 53 teeth - 428 Doppler aluminium CNC purple Beta RR 50
Article no.: CGN533904

Rear Sprocket 53 teeth - 428 Doppler aluminium CNC purple Beta RR 50

56,00 €
In stock
Standard Parts
Chain Guard reinforced Beta RR 50 / 125 aluminium black
Article no.: STR-730.12/BK

Chain Guard reinforced Beta RR 50 / 125 aluminium black

46,00 €
In stock
AFAM
Rear Sprocket steel Beta RR 50 Afam 60 teeth - 420
Article no.: AFAM167786

Rear Sprocket steel Beta RR 50 Afam 60 teeth - 420

28,00 €
In stock
Str8
Chain Guard Beta RR 50 / 125
Article no.: STR-730.02

Chain Guard Beta RR 50 / 125

29,50 €
In stock
New
Voca Racing
Rear Sprocket Beta RR 50 teeth - 420 Voca Alu red
Article no.: VCR-SD450.BETA.50/RE

Rear Sprocket Beta RR 50 teeth - 420 Voca Alu red

48,00 €
In stock
Voca Racing
Rear Sprocket Beta RR 50 teeth - 420 Voca Alu black
Article no.: VCR-SD450.BETA.50/BK

Rear Sprocket Beta RR 50 teeth - 420 Voca Alu black

48,00 €
In stock
Voca Racing
Rear Sprocket Beta RR 50 teeth - 420 Voca Alu Neochrome
Article no.: VCR-SD450.BETA.50/TI

Rear Sprocket Beta RR 50 teeth - 420 Voca Alu Neochrome

49,50 €
In stock
Voca Racing
Rear Sprocket Beta RR 50 teeth - 420 Voca Alu blue
Article no.: VCR-SD450.BETA.50/BL

Rear Sprocket Beta RR 50 teeth - 420 Voca Alu blue

46,00 €
In stock
Sale
Voca Racing
Rear Sprocket Beta RR 48 teeth - 420 Voca Alu red
Article no.: VCR-SD450.BETA.48/RE

Rear Sprocket Beta RR 48 teeth - 420 Voca Alu red

43,00 €
In stock
Voca Racing
Rear Sprocket Beta RR 48 teeth - 420 Voca Alu Neochrome
Article no.: VCR-SD450.BETA.48/TI

Rear Sprocket Beta RR 48 teeth - 420 Voca Alu Neochrome

45,00 €
In stock
Voca Racing
Rear Sprocket Beta RR 48 teeth - 420 Voca Alu blue
Article no.: VCR-SD450.BETA.48/BL

Rear Sprocket Beta RR 48 teeth - 420 Voca Alu blue

40,00 €
In stock
Sale
UFO
Swingarm Slider Yamaha YZ 125 / 250 after 2009 blue UFO
Article no.: UF-YA03890#089

Swingarm Slider Yamaha YZ 125 / 250 after 2009 blue UFO

16,50 €
In stock
UFO
Swingarm Slider Yamaha YZ 125 / 250 1993-1996 black UFO
Article no.: UF-YA02862#001

Swingarm Slider Yamaha YZ 125 / 250 1993-1996 black UFO

16,50 €
In stock
UFO
Swingarm Slider Yamaha YZ 125 / 250 1989-1992 UFO neutral
Article no.: UF-YA02822#280

Swingarm Slider Yamaha YZ 125 / 250 1989-1992 UFO neutral

16,50 €
In stock
UFO
Swingarm Slider Yamaha YZ 65 black UFO
Article no.: UF-YA04872#001

Swingarm Slider Yamaha YZ 65 black UFO

16,50 €
In stock
UFO
Chain Slider / Swingarm Slider Set KTM EXC 2012-2023 black UFO
Article no.: UF-KT04036@001

Chain Slider / Swingarm Slider Set KTM EXC 2012-2023 black UFO

25,50 €
In stock
UFO
Swingarm Slider KTM SX / EXC 2007-2010 black UFO
Article no.: UF-KT03099#001

Swingarm Slider KTM SX / EXC 2007-2010 black UFO

16,50 €
In stock
UFO
Swingarm Slider KTM SX 85 after 2015 black UFO
Article no.: UF-KT04058#001

Swingarm Slider KTM SX 85 after 2015 black UFO

16,50 €
In stock
UFO
Fuel Cap Kawasaki KX 125 / 250 1994-2008 black UFO
Article no.: UF-KA03707@001

Fuel Cap Kawasaki KX 125 / 250 1994-2008 black UFO

16,50 €
In stock
UFO
Swingarm Slider Kawasaki KX 125 / 250 1992-1996 black
Article no.: UF-KA02752#001

Swingarm Slider Kawasaki KX 125 / 250 1992-1996 black

16,50 €
In stock
UFO
Swingarm Slider Kawasaki KX 125 / 250 1992-1996 neutral
Article no.: UF-KA02751#280

Swingarm Slider Kawasaki KX 125 / 250 1992-1996 neutral

16,50 €
In stock
UFO
Chain Slider / Swingarm Slider Set KTM / Husqvarna 2014-2022 black UFO
Article no.: UF-HU03360@001

Chain Slider / Swingarm Slider Set KTM / Husqvarna 2014-2022 black UFO

25,50 €
In stock
UFO
Swingarm Slider KTM / Husqvarna 2014-2022 black UFO
Article no.: UF-HU03358@001

Swingarm Slider KTM / Husqvarna 2014-2022 black UFO

16,50 €
In stock
UFO
Swingarm Slider Honda CRF 150 after 2007 UFO black
Article no.: UF-HO04627#001

Swingarm Slider Honda CRF 150 after 2007 UFO black

16,50 €
In stock
UFO
Swingarm Slider Honda CR 125 / 250 1999-2004 UFO black
Article no.: UF-HO03660#001

Swingarm Slider Honda CR 125 / 250 1999-2004 UFO black

16,50 €
In stock
UFO
Chain Slider / Swingarm Slider Set Honda CR 125 / 250 1995-1997 UFO black
Article no.: UF-HO02675#001

Chain Slider / Swingarm Slider Set Honda CR 125 / 250 1995-1997 UFO black

15,00 €
In stock
Sale
UFO
Swingarm Slider Yamaha YZ 125 / 250 1993-2001 UFO black
Article no.: UF-YA03809#001

Swingarm Slider Yamaha YZ 125 / 250 1993-2001 UFO black

15,00 €
In stock
Sale
UFO
Swingarm Slider KTM SX 85 after 2015 UFO black
Article no.: UF-KT04056#001

Swingarm Slider KTM SX 85 after 2015 UFO black

17,00 €
In stock
UFO
Swingarm Slider Honda CR 125 / 250 1990-1994 UFO black
Article no.: UF-HO02632#001

Swingarm Slider Honda CR 125 / 250 1990-1994 UFO black

15,00 €
In stock
Sale
UFO
Chain Slider / Swingarm Slider Set GasGas MC / EC 2021-2023 UFO black
Article no.: UF-GG07135@001

Chain Slider / Swingarm Slider Set GasGas MC / EC 2021-2023 UFO black

25,50 €
In stock
Polisport
Swingarm Slider Polisport Beta RR after 2020 black
Article no.: POL-8476200001

Swingarm Slider Polisport Beta RR after 2020 black

11,50 €
In stock
RRP
19,73 €
-42% Discount
Standard Parts
Screw M8x35 galvanized 8.8 (x10)
Article no.: SP-10265

Screw M8x35 galvanized 8.8 (x10)

1,90 €
In stock
AFAM
Chain Master Link clip for motocross chain AFAM A420MX2G
Article no.: AFAMARA420MX2-G

Chain Master Link clip for motocross chain AFAM A420MX2G

3,80 €
In stock
AFAM
Chain motocross AFAM A420MX2G - clip
Article no.: AFAMA420MX2-G

Chain motocross AFAM A420MX2G - clip

from 39,50 €
In stock
50,00 €
-21% Discount
AFAM
Chain Master Link clip for motocross chain AFAM ARS A428MX-G gold
Article no.: AFAMARSA428MX-G

Chain Master Link clip for motocross chain AFAM ARS A428MX-G gold

5,40 €
In stock
AFAM
Chain motocross AFAM A520MR2G - clip
Article no.: AFAMA520MR2-G

Chain motocross AFAM A520MR2G - clip

from 44,50 €
In stock
46,00 €
-3% Discount
AFAM
Chain motocross AFAM A520XRR3G X-Ring - clip
Article no.: AFAMA520XRR3-G

Chain motocross AFAM A520XRR3G X-Ring - clip

from 97,00 €
In stock
101,00 €
-4% Discount
RFX
Chain Tensioners / Axle Blocks RFX Pro yellow Suzuki RM-Z 250 / 450
Article no.: R-FXAB3010099YL

Chain Tensioners / Axle Blocks RFX Pro yellow Suzuki RM-Z 250 / 450

31,50 €
In stock
RFX
Chain Tensioners / Axle Blocks RFX Pro red Beta RR
Article no.: R-FXAB8010099RD

Chain Tensioners / Axle Blocks RFX Pro red Beta RR

31,50 €
In stock
RFX
Chain Roller RFX Race black 38mm universal
Article no.: R-FXCR1003855BK

Chain Roller RFX Race black 38mm universal

11,00 €
In stock
Sale
RFX
Chain Roller RFX Race black 32mm universal
Article no.: R-FXCR1003255BK

Chain Roller RFX Race black 32mm universal

9,70 €
In stock
RFX
Chain Tensioners / Axle Blocks RFX Pro orange KTM SX65
Article no.: R-FXAB5040099OR

Chain Tensioners / Axle Blocks RFX Pro orange KTM SX65

32,00 €
In stock
RFX
Chain Tensioners / Axle Blocks RFX Pro orange KTM
Article no.: R-FXAB5030099OR

Chain Tensioners / Axle Blocks RFX Pro orange KTM

33,00 €
In stock
Pro Circuit
Chain Tensioners / Axle Blocks Pro Circuit red CR / CRF 2000-2008
Article no.: PC-HAB00

Chain Tensioners / Axle Blocks Pro Circuit red CR / CRF 2000-2008

77,00 €
In stock
Conti
Rear Sprocket bimetal red 53 teeth - 428 Conti CHR Beta RR
Article no.: CGN513620

Rear Sprocket bimetal red 53 teeth - 428 Conti CHR Beta RR

71,00 €
In stock
Doppler
Rear Sprocket steel 53 teeth - 428 Doppler Origin Beta RR
Article no.: CGN509882

Rear Sprocket steel 53 teeth - 428 Doppler Origin Beta RR

31,00 €
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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