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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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UFO
Chain Slider / Swingarm Slider Set Honda CRF 250 / 450 2013-2017 black
Article no.: UF-HO04665@001

Chain Slider / Swingarm Slider Set Honda CRF 250 / 450 2013-2017 black

25,50 €
Currently not in stock
UFO
Chain Slider / Swingarm Slider Set Honda CRF 250 / 450 2009-2013 red
Article no.: UF-HO04645@070

Chain Slider / Swingarm Slider Set Honda CRF 250 / 450 2009-2013 red

25,50 €
Currently not in stock
UFO
Chain Slider / Swingarm Slider Set Honda CRF 250 / 450 2009-2013 black
Article no.: UF-HO04645@001

Chain Slider / Swingarm Slider Set Honda CRF 250 / 450 2009-2013 black

25,50 €
Currently not in stock
UFO
Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2007 red
Article no.: UF-HO04633@070

Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2007 red

25,50 €
Currently not in stock
UFO
Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2007 black
Article no.: UF-HO04633@001

Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2007 black

25,50 €
Currently not in stock
UFO
Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2005-2006 red
Article no.: UF-HO04632@070

Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2005-2006 red

25,50 €
Currently not in stock
UFO
Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2005-2006 black
Article no.: UF-HO04632@001

Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2005-2006 black

25,50 €
Currently not in stock
UFO
Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2000-2004 red
Article no.: UF-HO04631@070

Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2000-2004 red

25,50 €
Currently not in stock
UFO
Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2000-2004 black
Article no.: UF-HO04631@001

Chain Slider / Swingarm Slider Set Honda CR 125 / 250 2000-2004 black

25,50 €
Currently not in stock
UFO
Swingarm Slider Honda CR 125 / 250 1999-2004 UFO red
Article no.: UF-HO03660#070

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

16,50 €
Currently not in stock
UFO
Swingarm Slider Honda CR 125 / 250 2007 UFO red
Article no.: UF-HO04623#070

Swingarm Slider Honda CR 125 / 250 2007 UFO red

16,50 €
Currently not in stock
UFO
Swingarm Slider Honda CR 125 / 250 2005-2006 UFO red
Article no.: UF-HO03691#070

Swingarm Slider Honda CR 125 / 250 2005-2006 UFO red

16,50 €
Currently not in stock
UFO
Swingarm Slider Honda CR 125 / 250 2005-2006 UFO black
Article no.: UF-HO03691#001

Swingarm Slider Honda CR 125 / 250 2005-2006 UFO black

16,50 €
Currently not in stock
UFO
Swingarm Slider Kawasaki KXF 250 / 450 2009-2016 UFO black
Article no.: UF-KA04709#001

Swingarm Slider Kawasaki KXF 250 / 450 2009-2016 UFO black

17,00 €
Currently not in stock
UFO
Chain Slider / Swingarm Slider Set Honda CR 125 / 250 1997-1999 UFO black
Article no.: UF-HO03607#001

Chain Slider / Swingarm Slider Set Honda CR 125 / 250 1997-1999 UFO black

17,00 €
Currently not in stock
UFO
Swingarm Slider Honda CRF 250 / 450 after 2007 UFO black
Article no.: UF-HO04623#001

Swingarm Slider Honda CRF 250 / 450 after 2007 UFO black

16,50 €
Currently not in stock
UFO
Swingarm Slider Kawasaki KX 125 / 250 1997-2002 UFO black
Article no.: UF-KA03708#001

Swingarm Slider Kawasaki KX 125 / 250 1997-2002 UFO black

16,50 €
Currently not in stock
UFO
Swingarm Slider Kawasaki KX 125 / 250 1994-2008 UFO black
Article no.: UF-KA03703#001

Swingarm Slider Kawasaki KX 125 / 250 1994-2008 UFO black

17,00 €
Currently not in stock
UFO
Swingarm Slider KTM SX / EXC 1997-2007 UFO black
Article no.: UF-KT03069#001

Swingarm Slider KTM SX / EXC 1997-2007 UFO black

17,00 €
Currently not in stock
UFO
Swingarm Slider Yamaha YZF 250 / 450 2009-2023 UFO black
Article no.: UF-YA04806#001

Swingarm Slider Yamaha YZF 250 / 450 2009-2023 UFO black

17,00 €
Currently not in stock
UFO
Swingarm Slider Honda CR 125 / 250 1990-1998 UFO black
Article no.: UF-HO02662#001

Swingarm Slider Honda CR 125 / 250 1990-1998 UFO black

16,50 €
Currently not in stock
UFO
Swingarm Slider Yamaha YZ 125 / 250 after 2009 UFO black
Article no.: UF-YA03890#001

Swingarm Slider Yamaha YZ 125 / 250 after 2009 UFO black

16,50 €
Currently not in stock
UFO
Swingarm Slider Yamaha YZ 125 / 250 after 2005 UFO black
Article no.: UF-YA03876#001

Swingarm Slider Yamaha YZ 125 / 250 after 2005 UFO black

17,00 €
Currently not in stock
UFO
Swingarm Slider Honda CR / CRF 2000-2009 UFO black
Article no.: UF-HO03671#001

Swingarm Slider Honda CR / CRF 2000-2009 UFO black

17,00 €
Currently not in stock
UFO
Swingarm Slider Kawasaki KX 250 / 450 after 2019 UFO black
Article no.: UF-KA04755#001

Swingarm Slider Kawasaki KX 250 / 450 after 2019 UFO black

17,00 €
Currently not in stock
UFO
Swingarm Slider KTM SX / SX-F 2019-2022 black
Article no.: UF-KT04028#001

Swingarm Slider KTM SX / SX-F 2019-2022 black

16,50 €
Currently not in stock
UFO
Swingarm Slider GasGas MC / EC 2021-2023 UFO black
Article no.: UF-GG07134@001

Swingarm Slider GasGas MC / EC 2021-2023 UFO black

17,00 €
Currently not in stock
UFO
Swingarm Slider GasGas MC 85 UFO black
Article no.: UF-GG07122@001

Swingarm Slider GasGas MC 85 UFO black

17,00 €
Currently not in stock
UFO
Swingarm Slider GasGas MC 65 UFO black
Article no.: UF-GG07111@001

Swingarm Slider GasGas MC 65 UFO black

17,00 €
Currently not in stock
UFO
Chain Slider GasGas MC / EC 2021-2023 UFO black
Article no.: UF-GG07133@001

Chain Slider GasGas MC / EC 2021-2023 UFO black

16,50 €
Currently not in stock
UFO
Chain Slider GasGas MC 85 UFO black
Article no.: UF-GG07121@001

Chain Slider GasGas MC 85 UFO black

16,50 €
Currently not in stock
UFO
Chain Slider GasGas MC 65 UFO black
Article no.: UF-GG07110@001

Chain Slider GasGas MC 65 UFO black

16,50 €
Currently not in stock
UFO
Chain Roller CRF 250 / 450 after 2021 UFO red
Article no.: UF-HO05612#070

Chain Roller CRF 250 / 450 after 2021 UFO red

13,00 €
Currently not in stock
UFO
Chain Roller CRF 250 / 450 after 2021 UFO black
Article no.: UF-HO05612#001

Chain Roller CRF 250 / 450 after 2021 UFO black

13,00 €
Currently not in stock
UFO
Swingarm Slider CRF 250 / 450 after 2007 UFO red
Article no.: UF-HO05611@070

Swingarm Slider CRF 250 / 450 after 2007 UFO red

25,50 €
Currently not in stock
UFO
Swingarm Slider CRF 250 / 450 after 2007 UFO black
Article no.: UF-HO05611@001

Swingarm Slider CRF 250 / 450 after 2007 UFO black

25,50 €
Currently not in stock
UFO
Chain Roller YZ / YZF after 2010 UFO blue
Article no.: UF-YA04815@089

Chain Roller YZ / YZF after 2010 UFO blue

12,00 €
Currently not in stock
UFO
Chain Roller YZ / YZF after 2010 UFO black
Article no.: UF-YA04815@001

Chain Roller YZ / YZF after 2010 UFO black

12,00 €
Currently not in stock
UFO
Chain Slider / Swingarm Slider Set YZF after 2023 blue UFO
Article no.: UF-YA05800@089

Chain Slider / Swingarm Slider Set YZF after 2023 blue UFO

25,50 €
Currently not in stock
UFO
Chain Slider / Swingarm Slider Set YZF after 2023 black UFO
Article no.: UF-YA05800@001

Chain Slider / Swingarm Slider Set YZF after 2023 black UFO

25,50 €
Currently not in stock
UFO
Swingarm Slider YZF after 2023 blue UFO
Article no.: UF-YA04899#089

Swingarm Slider YZF after 2023 blue UFO

17,50 €
Currently not in stock
UFO
Swingarm Slider YZF after 2023 black UFO
Article no.: UF-YA04899#001

Swingarm Slider YZF after 2023 black UFO

17,50 €
Currently not in stock
UFO
Chain Slider YZF after 2023 blue UFO
Article no.: UF-YA04898#089

Chain Slider YZF after 2023 blue UFO

16,50 €
Currently not in stock
UFO
Chain Slider YZF after 2023 black UFO
Article no.: UF-YA04898#001

Chain Slider YZF after 2023 black UFO

16,50 €
Currently not in stock
Polini
Secondary Gears Polini 18/24 Suzuki CP 50
Article no.: P202.1319

Secondary Gears Polini 18/24 Suzuki CP 50

61,00 €
Currently not in stock
RRP
69,00 €
-12% Discount
UFO
Swingarm Slider UFO CRF 250 2022 red
Article no.: UF-HO05610#070

Swingarm Slider UFO CRF 250 2022 red

21,00 €
Currently not in stock
RRP
21,42 €
-2% Discount
UFO
Swingarm Slider UFO CRF 250 2022 black
Article no.: UF-HO05610#001

Swingarm Slider UFO CRF 250 2022 black

21,00 €
Currently not in stock
RRP
21,42 €
-2% Discount
Standard Parts
Transmission Gear Set Morini AC 2002
Article no.: SP-10100101

Transmission Gear Set Morini AC 2002

60,00 €
Currently not in stock
Rieju
Rear Sprocket Rieju 60 Z SMX / RRX / Spike-X Power Up
Article no.: OE-RIE0/000.500.5030

Rear Sprocket Rieju 60 Z SMX / RRX / Spike-X Power Up

45,00 €
Currently not in stock
Standard Parts
Rear Sprocket IGM Rieju SMX "06 62mm 5 hole 60Z Power Up
Article no.: SP-1375-8310

Rear Sprocket IGM Rieju SMX "06 62mm 5 hole 60Z Power Up

13,50 €
Currently not in stock
Standard Parts
Rear Sprocket IGM Rieju RS2 Matrix 55mm 3 hole 46 teeth
Article no.: SP-85842

Rear Sprocket IGM Rieju RS2 Matrix 55mm 3 hole 46 teeth

12,00 €
Currently not in stock
Yamaha
Gear Shaft Yamaha Neo's 4T
Article no.: OE-YAM5C3E74100000

Gear Shaft Yamaha Neo's 4T

195,00 €
Currently not in stock
AFAM
Chain Master Link rivet for motocross chain AFAM A420MX2G
Article no.: AFAMMRA420MX2-G

Chain Master Link rivet for motocross chain AFAM A420MX2G

3,80 €
Currently not in stock
AFAM
Chain Master Link rivet for motocross chain AFAM A428MXG
Article no.: AFAMMRA428MX-G

Chain Master Link rivet for motocross chain AFAM A428MXG

5,40 €
Currently not in stock
AFAM
Chain motocross AFAM A428MXG - clip
Article no.: AFAMA428MX-G

Chain motocross AFAM A428MXG - clip

from 56,00 €
Currently not in stock
58,00 €
-3% Discount
AFAM
Chain Master Link rivet for motocross chain AFAM A520XRR3G Xs-Ring
Article no.: AF450524

Chain Master Link rivet for motocross chain AFAM A520XRR3G Xs-Ring

6,90 €
Currently not in stock
AFAM
Chain Master Link clip for motocross chain AFAM A520MR2G
Article no.: AFAMARA520MR2-G

Chain Master Link clip for motocross chain AFAM A520MR2G

3,50 €
Currently not in stock
AFAM
Chain Master Link rivet for motocross chain AFAM A520MR2G
Article no.: AFAMMRA520MR2-G

Chain Master Link rivet for motocross chain AFAM A520MR2G

2,90 €
Currently not in stock
UFO
Swingarm Slider UFO KTM SX / SX-F 2023 orange
Article no.: UF-KT05018127

Swingarm Slider UFO KTM SX / SX-F 2023 orange

19,00 €
Currently not in stock
RRP
19,29 €
-2% Discount
UFO
Swingarm Slider UFO KTM SX / SX-F 2023 black
Article no.: UF-KT05018001

Swingarm Slider UFO KTM SX / SX-F 2023 black

19,00 €
Currently not in stock
RRP
19,29 €
-2% Discount
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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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