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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 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
Brand
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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Moose Racing
Rear Sprocket steel 428 Moose Racing YZ / RM 85 52 teeth black
Article no.: MR12101797

Rear Sprocket steel 428 Moose Racing YZ / RM 85 52 teeth black

27,50 €
In stock
Moose Racing
Rear Sprocket steel 428 Moose Racing TC / SX 85 48 teeth black
Article no.: MR12101770

Rear Sprocket steel 428 Moose Racing TC / SX 85 48 teeth black

27,50 €
In stock
Moose Racing
Rear Sprocket steel 520 Moose Racing Beta / Honda 47 teeth black
Article no.: MR12101754

Rear Sprocket steel 520 Moose Racing Beta / Honda 47 teeth black

27,50 €
In stock
Moose Racing
Rear Sprocket steel 520 Moose Racing KTM / Husqvarna 52 teeth black
Article no.: MR12101752

Rear Sprocket steel 520 Moose Racing KTM / Husqvarna 52 teeth black

27,50 €
In stock
Moose Racing
Rear Sprocket steel 520 Moose Racing KTM / Husqvarna 51 teeth black
Article no.: MR12101751

Rear Sprocket steel 520 Moose Racing KTM / Husqvarna 51 teeth black

27,50 €
In stock
Moose Racing
Rear Sprocket steel 520 Moose Racing KTM / Husqvarna 50 teeth black
Article no.: MR12101750

Rear Sprocket steel 520 Moose Racing KTM / Husqvarna 50 teeth black

27,50 €
In stock
Moose Racing
Rear Sprocket aluminium / steel 520 Moose Racing Beta RR 50 teeth red
Article no.: MR12101542

Rear Sprocket aluminium / steel 520 Moose Racing Beta RR 50 teeth red

61,00 €
In stock
Moose Racing
Rear Sprocket aluminium / steel 520 Moose Racing KTM / Husqvarna 50 teeth orange
Article no.: MR12101522

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

61,00 €
In stock
Moose Racing
Rear Sprocket aluminium / steel 520 Moose Racing KTM / Husqvarna 48 teeth orange
Article no.: MR12101516

Rear Sprocket aluminium / steel 520 Moose Racing KTM / Husqvarna 48 teeth orange

61,00 €
In stock
Moose Racing
Rear Sprocket aluminium / steel 520 Moose Racing Yamaha 50 teeth black
Article no.: MR12101481

Rear Sprocket aluminium / steel 520 Moose Racing Yamaha 50 teeth black

61,00 €
In stock
Moose Racing
Rear Sprocket aluminium / steel 520 Moose Racing Yamaha 48 teeth blue
Article no.: MR12101477

Rear Sprocket aluminium / steel 520 Moose Racing Yamaha 48 teeth blue

61,00 €
In stock
Moose Racing
Rear Sprocket aluminium / steel 520 Moose Racing Beta / Honda 51 teeth red
Article no.: MR12101471

Rear Sprocket aluminium / steel 520 Moose Racing Beta / Honda 51 teeth red

61,00 €
In stock
Moose Racing
Rear Sprocket aluminium / steel 520 Moose Racing Beta / Honda 50 teeth black
Article no.: MR12101466

Rear Sprocket aluminium / steel 520 Moose Racing Beta / Honda 50 teeth black

61,00 €
In stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing Beta RR 52 teeth red
Article no.: MR12111869

Rear Sprocket aluminium 520 Moose Racing Beta RR 52 teeth red

39,50 €
In stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing Beta RR 50 teeth red
Article no.: MR12111867

Rear Sprocket aluminium 520 Moose Racing Beta RR 50 teeth red

39,50 €
In stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing Beta RR 42 teeth black
Article no.: MR12111847

Rear Sprocket aluminium 520 Moose Racing Beta RR 42 teeth black

39,50 €
In stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing 43 teeth red
Article no.: MR12111645

Rear Sprocket aluminium 520 Moose Racing 43 teeth red

39,50 €
In stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing Yamaha 49 teeth after 1999
Article no.: MR12111587

Rear Sprocket aluminium 520 Moose Racing Yamaha 49 teeth after 1999

39,50 €
In stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing KTM / Husqvarna 46 teeth
Article no.: MR12111550

Rear Sprocket aluminium 520 Moose Racing KTM / Husqvarna 46 teeth

39,50 €
In stock
Moose Racing
Rear Sprocket aluminium 428 Moose Racing TC / SX 85 49 teeth
Article no.: MR12111548

Rear Sprocket aluminium 428 Moose Racing TC / SX 85 49 teeth

20,00 €
In stock
RRP
39,50 €
-49% Discount
Moose Racing
Rear Sprocket aluminium 520 Moose Racing Beta / Honda 49 teeth
Article no.: MR12111514

Rear Sprocket aluminium 520 Moose Racing Beta / Honda 49 teeth

20,00 €
In stock
RRP
39,50 €
-49% Discount
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

39,50 €
In stock
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

39,50 €
In stock
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
KMC
Chain reinforced KMC 103 links / 415 yellow
Article no.: CGN505606

Chain reinforced KMC 103 links / 415 yellow

14,00 €
In stock
KMC
Chain reinforced KMC 103 links / 415 red
Article no.: CGN505604

Chain reinforced KMC 103 links / 415 red

14,00 €
In stock
Doppler
Chain Guide Doppler Rieju MRT red
Article no.: CGN505689

Chain Guide Doppler Rieju MRT red

34,00 €
In stock
Doppler
Chain Guide Doppler Derbi / Aprilia / Gilera red
Article no.: CGN505686

Chain Guide Doppler Derbi / Aprilia / Gilera red

32,50 €
In stock
35,00 €
-7% Discount
Doppler
Chain Guide Doppler Derbi / Aprilia / Gilera gold
Article no.: CGN505687

Chain Guide Doppler Derbi / Aprilia / Gilera gold

34,00 €
In stock
Doppler
Chain reinforced 140 d.420 links Doppler gold
Article no.: CGN503602

Chain reinforced 140 d.420 links Doppler gold

28,50 €
In stock
Doppler
Front Sprocket Cover / Chain Guard Doppler alu neochrome Minarelli AM6
Article no.: CGN505990

Front Sprocket Cover / Chain Guard Doppler alu neochrome Minarelli AM6

29,00 €
In stock
Top Performances
Gearwheel 3rd-4th gear primary shaft Top Performances Minarelli T19-22 AM6 V1
Article no.: TAM00041

Gearwheel 3rd-4th gear primary shaft Top Performances Minarelli T19-22 AM6 V1

39,50 €
In stock
Top Performances
Gearwheel 2nd gear secondary shaft Top Performances T33 AM6 V1
Article no.: TAM00036

Gearwheel 2nd gear secondary shaft Top Performances T33 AM6 V1

22,50 €
In stock
Top Performances
Gearwheel 4th gear secondary shaft Top Performances T27 AM6 V1
Article no.: TAM00034

Gearwheel 4th gear secondary shaft Top Performances T27 AM6 V1

39,50 €
In stock
Top Performances
Primary Gear Shaft Top Performances Minarelli AM6 Z12 V2
Article no.: TAM00032

Primary Gear Shaft Top Performances Minarelli AM6 Z12 V2

63,00 €
In stock
Top Performances
Gearwheel 2nd gear secondary shaft T30 Euro 3 (D50B0)
Article no.: TAM00011

Gearwheel 2nd gear secondary shaft T30 Euro 3 (D50B0)

31,50 €
In stock
Top Performances
Gearwheel 1st gear secondary shaft Top Performances T36 AM6 V2
Article no.: TAM00010

Gearwheel 1st gear secondary shaft Top Performances T36 AM6 V2

31,50 €
In stock
Top Performances
Gearwheel 5th gear primary shaft Top Performances T24 AM6 V2
Article no.: TAM00008

Gearwheel 5th gear primary shaft Top Performances T24 AM6 V2

16,50 €
In stock
RRP
33,00 €
-50% Discount
Top Performances
Gearwheel 3rd-4th gear primary shaft Top Performances Minarelli T19-22 AM6 V2
Article no.: TAM00007

Gearwheel 3rd-4th gear primary shaft Top Performances Minarelli T19-22 AM6 V2

59,00 €
In stock
Top Performances
Gearwheel 2nd gear primary shaft Top Performances T16 AM6 V2
Article no.: TAM00006

Gearwheel 2nd gear primary shaft Top Performances T16 AM6 V2

23,00 €
In stock
Top Performances
Gearbox complete Top Performances Minarelli AM6
Article no.: T9935000

Gearbox complete Top Performances Minarelli AM6

562,00 €
In stock
Standard Parts
Shift Drum Generic / Minarelli AM6
Article no.: EKP-32173

Shift Drum Generic / Minarelli AM6

69,00 €
In stock
Jasil
Gearbox complete Top Racing Derbi Euro 3
Article no.: JA6250005
1

Gearbox complete Top Racing Derbi Euro 3

499,00 €
In stock
Derbi
Primary Gears Derbi Euro 3 GPR
Article no.: OE-DE8470395

Primary Gears Derbi Euro 3 GPR

319,00 €
In stock
Standard Parts
Spring f. gear shift lock lever Pit Bike engine Lifan 125cc / 140cc
Article no.: MB24323/152FMH

Spring f. gear shift lock lever Pit Bike engine Lifan 125cc / 140cc

1,20 €
In stock
Standard Parts
Chain Tensioner steel - d.12mm Pit Bike / Dirt Bike
Article no.: MB2349

Chain Tensioner steel - d.12mm Pit Bike / Dirt Bike

5,30 €
In stock
Standard Parts
Chain Tensioner aluminium d.15mm Pit Bike / Dirt Bike
Article no.: MB_TENSIO15/COLOR

Chain Tensioner aluminium d.15mm Pit Bike / Dirt Bike

from 8,00 €
In stock
Standard Parts
Chain Roller Pit Bike / Dirt Bike (just roller)
Article no.: MB7568

Chain Roller Pit Bike / Dirt Bike (just roller)

7,00 €
In stock
Standard Parts
Cam Chain Tensioner d.10mm white
Article no.: MB2350

Cam Chain Tensioner d.10mm white

5,80 €
In stock
Standard Parts
Chain Roller pin 8mm Apollo black
Article no.: MB7510

Chain Roller pin 8mm Apollo black

3,80 €
In stock
Standard Parts
Front Sprocket Retainer d.20mm Pit Bike
Article no.: MB3342

Front Sprocket Retainer d.20mm Pit Bike

2,60 €
In stock
Standard Parts
Front Sprocket 428 - d.20mm Pit Bike / Dirt Bike
Article no.: MB_SPRO42820PIT/SIZE

Front Sprocket 428 - d.20mm Pit Bike / Dirt Bike

from 4,70 €
In stock
Standard Parts
Front Sprocket 428 - d.17mm Pit Bike / Dirt Bike
Article no.: MB_SPRO42817PIT/SIZE

Front Sprocket 428 - d.17mm Pit Bike / Dirt Bike

from 5,20 €
In stock
Standard Parts
Front Sprocket 420 - d.20mm Pit Bike / Dirt Bike
Article no.: MB_SPRO42020PIT/SIZE

Front Sprocket 420 - d.20mm Pit Bike / Dirt Bike

from 5,20 €
In stock
Standard Parts
Front Sprocket 420 - d.17mm Pit Bike / Dirt Bike
Article no.: MB_SPRO42017PIT/SIZE

Front Sprocket 420 - d.17mm Pit Bike / Dirt Bike

from 5,20 €
In stock
Standard Parts
Slide Piece swingarm nylon Pit Bike / Dirt Bike
Article no.: MB2478

Slide Piece swingarm nylon Pit Bike / Dirt Bike

4,20 €
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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