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Transmission

(3001 products)
Gearboxes Chains and Sprockets Gear Drives Transmission Accessories
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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
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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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Standard Parts
Front Sprocket 18 teeth 1/2x5.4 Simson
Article no.: MOF-40813

Front Sprocket 18 teeth 1/2x5.4 Simson

5,30 €
Currently not in stock
Standard Parts
Front Sprocket 12 teeth 1/2x5.4 Simson
Article no.: MOF-40807

Front Sprocket 12 teeth 1/2x5.4 Simson

5,30 €
Currently not in stock
Standard Parts
Rear Sprocket 34 teeth Simson
Article no.: MOF-40806

Rear Sprocket 34 teeth Simson

34,50 €
Currently not in stock
Standard Parts
Rear Sprocket 40 teeth (Chain 415) 6-hole Puch Ms / Mv / Vs
Article no.: MOF-40196

Rear Sprocket 40 teeth (Chain 415) 6-hole Puch Ms / Mv / Vs

16,00 €
Currently not in stock
Standard Parts
Rear Sprocket 31 teeth Puch Ms 50 / Mv 50 / Vs 50
Article no.: MOF-39847

Rear Sprocket 31 teeth Puch Ms 50 / Mv 50 / Vs 50

15,00 €
Currently not in stock
Standard Parts
Gear Shift Lever chrome Simson
Article no.: MOF-39577

Gear Shift Lever chrome Simson

11,00 €
Currently not in stock
Standard Parts
Gear Selector Shaft 5-speed Zündapp
Article no.: MOF-28807

Gear Selector Shaft 5-speed Zündapp

103,00 €
Currently not in stock
AFAM
Chain Kit Afam MX5 (ultra-light self-cleaning rear sprocket) KTM SX 250
Article no.: 48013233

Chain Kit Afam MX5 (ultra-light self-cleaning rear sprocket) KTM SX 250

146,00 €
Currently not in stock
AFAM
Chain Kit Afam MX5 14/50 KTM SX 250
Article no.: 48013231

Chain Kit Afam MX5 14/50 KTM SX 250

148,00 €
Currently not in stock
AFAM
Chain Kit Afam 415 type F (ultra-light self-cleaning rear sprocket) KTM SX 50
Article no.: 48012999

Chain Kit Afam 415 type F (ultra-light self-cleaning rear sprocket) KTM SX 50

59,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 TM 12/49 ultra-light rear sprocket
Article no.: 48011991

Chain Kit Afam 520 MR2 TM 12/49 ultra-light rear sprocket

126,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 KTM 13/48
Article no.: 48011978

Chain Kit Afam 520 MR2 KTM 13/48

122,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 KTM 14/50
Article no.: 48011961

Chain Kit Afam 520 MR2 KTM 14/50

127,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 SX 250 13/50 self-cleaning rear sprocket
Article no.: 48011947

Chain Kit Afam 520 MR2 SX 250 13/50 self-cleaning rear sprocket

130,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 YZ 125 13/50 original 1993
Article no.: 48011606

Chain Kit Afam 520 MR2 YZ 125 13/50 original 1993

107,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 YZ 125 13/50 original 1995
Article no.: 48011599

Chain Kit Afam 520 MR2 YZ 125 13/50 original 1995

106,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 RM 125 12/49 original 1994-1996
Article no.: 48011467

Chain Kit Afam 520 MR2 RM 125 12/49 original 1994-1996

105,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 RM 250 13/49 original 1993
Article no.: 48011466

Chain Kit Afam 520 MR2 RM 250 13/49 original 1993

109,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 RM 250 13/50
Article no.: 48011455

Chain Kit Afam 520 MR2 RM 250 13/50

104,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 RM 125 12/49 original 1992-1993
Article no.: 48011445

Chain Kit Afam 520 MR2 RM 125 12/49 original 1992-1993

107,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 RM 125 13/51 ultra-light rear sprocket
Article no.: 48011442

Chain Kit Afam 520 MR2 RM 125 13/51 ultra-light rear sprocket

108,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 RM 250 13/49
Article no.: 48011436

Chain Kit Afam 520 MR2 RM 250 13/49

107,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 RM 250 13/49 original 1994-1996
Article no.: 48011434

Chain Kit Afam 520 MR2 RM 250 13/49 original 1994-1996

108,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 RM 125 12/50
Article no.: 48011431

Chain Kit Afam 520 MR2 RM 125 12/50

107,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 SX 250 14/50
Article no.: 48011301

Chain Kit Afam 520 MR2 SX 250 14/50

104,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 XRR3 EXC 250 13/48 self-cleaning rear sprocket
Article no.: 48011297

Chain Kit Afam 520 XRR3 EXC 250 13/48 self-cleaning rear sprocket

129,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 SX 125 13/50 original 1994-1997
Article no.: 48011235

Chain Kit Afam 520 MR2 SX 125 13/50 original 1994-1997

105,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 SX 125 13/50 original 1998
Article no.: 48011211

Chain Kit Afam 520 MR2 SX 125 13/50 original 1998

104,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 KX 250 14/48 ultra-light rear sprocket
Article no.: 48011198

Chain Kit Afam 520 MR2 KX 250 14/48 ultra-light rear sprocket

105,00 €
Currently not in stock
AFAM
Chain Kit Afam 428 MX 85 KX 13/54 ultra-light rear sprocket
Article no.: 48011187

Chain Kit Afam 428 MX 85 KX 13/54 ultra-light rear sprocket

119,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 KX 125 12/49 ultra-light rear sprocket
Article no.: 48011185

Chain Kit Afam 520 MR2 KX 125 12/49 ultra-light rear sprocket

107,00 €
Currently not in stock
AFAM
Chain Kit Afam 420 MX2 KX 85 14/51 Rear Sprocket self-cleaning
Article no.: 48011174

Chain Kit Afam 420 MX2 KX 85 14/51 Rear Sprocket self-cleaning

92,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 KX 250 14/49 original 1992-1993
Article no.: 48011140

Chain Kit Afam 520 MR2 KX 250 14/49 original 1992-1993

106,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 Husqvarna CR 250 14/50 ultra-light rear sprocket
Article no.: 48011091

Chain Kit Afam 520 MR2 Husqvarna CR 250 14/50 ultra-light rear sprocket

130,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 Husqvarna CR 250 14/48 ultra-light rear sprocket
Article no.: 48011090

Chain Kit Afam 520 MR2 Husqvarna CR 250 14/48 ultra-light rear sprocket

130,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 Husqvarna CR 250 15/50 ultra-light rear sprocket
Article no.: 48011086

Chain Kit Afam 520 MR2 Husqvarna CR 250 15/50 ultra-light rear sprocket

132,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 Husqvarna CR 125 12/50 ultra-light rear sprocket
Article no.: 48011049

Chain Kit Afam 520 MR2 Husqvarna CR 125 12/50 ultra-light rear sprocket

106,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 Husqvarna CR 125 13/48 self-cleaning rear sprocket
Article no.: 48011033

Chain Kit Afam 520 MR2 Husqvarna CR 125 13/48 self-cleaning rear sprocket

131,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 Husqvarna CR 125 12/50
Article no.: 48011032

Chain Kit Afam 520 MR2 Husqvarna CR 125 12/50

104,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 CR 250 13/49 original 1994-1996
Article no.: 48010911

Chain Kit Afam 520 MR2 CR 250 13/49 original 1994-1996

107,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 CR 250 14/53
Article no.: 48010909

Chain Kit Afam 520 MR2 CR 250 14/53

101,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 CR 250 13/49 original 1990-1993
Article no.: 48010895

Chain Kit Afam 520 MR2 CR 250 13/49 original 1990-1993

106,00 €
Currently not in stock
AFAM
Chain Kit Afam 415F KTM 50 SX 10/40
Article no.: 48010551

Chain Kit Afam 415F KTM 50 SX 10/40

79,00 €
Currently not in stock
AFAM
Chain Kit Afam 420 MX SX Pro Senior LC 50 11/44 self-cleaning rear sprocket
Article no.: 48010547

Chain Kit Afam 420 MX SX Pro Senior LC 50 11/44 self-cleaning rear sprocket

79,00 €
Currently not in stock
AFAM
Chain Kit Afam 428 MX CR 85 15/49
Article no.: 48010409

Chain Kit Afam 428 MX CR 85 15/49

104,00 €
Currently not in stock
AFAM
Chain Kit Afam 420 MX CR 85 15/56
Article no.: 48010406

Chain Kit Afam 420 MX CR 85 15/56

90,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 CR 250 13/50
Article no.: 48010399

Chain Kit Afam 520 MR2 CR 250 13/50

126,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 CR 250 13/48
Article no.: 48010398

Chain Kit Afam 520 MR2 CR 250 13/48

124,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 CR 125 13/51 original 1998-1999
Article no.: 48010396

Chain Kit Afam 520 MR2 CR 125 13/51 original 1998-1999

129,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 CR 125 12/49
Article no.: 48010395

Chain Kit Afam 520 MR2 CR 125 12/49

124,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 CR 125 13/52 original 2005-2007
Article no.: 48010393

Chain Kit Afam 520 MR2 CR 125 13/52 original 2005-2007

132,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 CR 125 13/52 original 2003
Article no.: 48010389

Chain Kit Afam 520 MR2 CR 125 13/52 original 2003

132,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 CR 125 13/51 original 2002
Article no.: 48010387

Chain Kit Afam 520 MR2 CR 125 13/51 original 2002

129,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 KX 125 13/50 original 1996-1997
Article no.: 48010326

Chain Kit Afam 520 MR2 KX 125 13/50 original 1996-1997

105,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 KX 250 14/49 original 1994-1996
Article no.: 48010294

Chain Kit Afam 520 MR2 KX 250 14/49 original 1994-1996

125,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 KX 125 13/50 original 2004-2008
Article no.: 48010272

Chain Kit Afam 520 MR2 KX 125 13/50 original 2004-2008

124,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 KX 125 12/49
Article no.: 48010259

Chain Kit Afam 520 MR2 KX 125 12/49

104,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 KX 250 14 / 49
Article no.: 48010258

Chain Kit Afam 520 MR2 KX 250 14 / 49

129,00 €
Currently not in stock
AFAM
Chain Kit Afam 420 MX 65 TC / SX 14 / 48
Article no.: 48010249

Chain Kit Afam 420 MX 65 TC / SX 14 / 48

89,00 €
Currently not in stock
AFAM
Chain Kit Afam 520 MR2 KX 125 12 / 49
Article no.: 48010235

Chain Kit Afam 520 MR2 KX 125 12 / 49

122,00 €
Currently not in stock
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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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