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Scooter
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Chains and Sprockets

(19 products)
Gearboxes Chains and Sprockets Gear Drives Transmission Accessories
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302
products
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19
302
products
found
Product type
Chain Chain kit Front sprocket Chain rear sprocket
Brand
AFAM Conti Derbi Doppler IGM Moose Racing Moto Master MotoForce MotoForce Racing Renthal Stage6 Standard Parts Voca Racing
Inside diameter
58 mm 62 mm 100 mm 102 mm 105 mm 108 mm 136 mm
Bolt pattern
4-hole 5-hole 6-hole 3x2 holes
Chain links
112 140
Colour
Black Purple Red
Price
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Conti IGM Standard Parts
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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 2,60 €
In stock
IGM
Rear Sprocket 46 teeth / 420 IGM Derbi Senda / Aprilia SX50 from 2011
Article no.: IGM85193

Rear Sprocket 46 teeth / 420 IGM Derbi Senda / Aprilia SX50 from 2011

13,00 €
In stock
Sale
Standard Parts
Rear Sprocket steel 62 teeth 420 CPI SM
Article no.: MF89.00374

Rear Sprocket steel 62 teeth 420 CPI SM

27,00 €
In stock
Standard Parts
Chain 420 / 135 links Doppler reinforced purple
Article no.: CGN517760

Chain 420 / 135 links Doppler reinforced purple

25,00 €
In stock
32,50 €
-23% Discount
Sale
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 €
Currently not in stock
Standard Parts
Rear Sprocket 60 teeth / 420 red Beta RR from 2005
Article no.: SP-40592/RE

Rear Sprocket 60 teeth / 420 red Beta RR from 2005

28,00 €
Currently not in stock
Standard Parts
Rear Sprocket 51 teeth / 420 red Beta RR from 2005
Article no.: SP-37396/RE

Rear Sprocket 51 teeth / 420 red Beta RR from 2005

27,00 €
Currently not in stock
Standard Parts
Rear Sprocket 55 teeth / 420 steel Generic Trigger / Ride / KSR
Article no.: MF89.00393

Rear Sprocket 55 teeth / 420 steel Generic Trigger / Ride / KSR

29,00 €
Currently not in stock
30,00 €
-3% Discount
Standard Parts
Chain Kit 13x53 - 420 Derbi DRD Pro / Racing
Article no.: MF89.00222

Chain Kit 13x53 - 420 Derbi DRD Pro / Racing

40,50 €
Currently not in stock
Standard Parts
Rear Sprocket 71 teeth / 420 steel Senda / MRT / DT50
Article no.: MF89.00329

Rear Sprocket 71 teeth / 420 steel Senda / MRT / DT50

28,00 €
Currently not in stock
30,00 €
-7% Discount
Standard Parts
Rear Sprocket 62 teeth / 420 steel Senda / MRT / DT50
Article no.: MF89.00328

Rear Sprocket 62 teeth / 420 steel Senda / MRT / DT50

30,00 €
Currently not in stock
Standard Parts
Rear Sprocket 52 teeth / 420 steel Peugeot / Rieju
Article no.: MF89.00310

Rear Sprocket 52 teeth / 420 steel Peugeot / Rieju

21,00 €
Currently not in stock
IGM
Rear Sprocket 44 teeth / 420 IGM steel Rieju MRT / Derbi Senda
Article no.: IGM85140

Rear Sprocket 44 teeth / 420 IGM steel Rieju MRT / Derbi Senda

17,00 €
Currently not in stock
IGM
Rear Sprocket 65 teeth / 420 IGM steel Rieju MRT / Derbi Senda
Article no.: IGM13101205

Rear Sprocket 65 teeth / 420 IGM steel Rieju MRT / Derbi Senda

18,00 €
Currently not in stock
Standard Parts
Front Sprocket 12 teeth 420 Derbi Euro2 before 1999
Article no.: L-SA5521

Front Sprocket 12 teeth 420 Derbi Euro2 before 1999

8,00 €
Currently not in stock
IGM
Rear Sprocket 48 teeth / 420 IGM steel Derbi Senda DRD / X-Treme
Article no.: IGM88290

Rear Sprocket 48 teeth / 420 IGM steel Derbi Senda DRD / X-Treme

15,50 €
Currently not in stock
Standard Parts
Rear Sprocket Premium 60T / 420 black Fantic XM50 /XE50 after 2018
Article no.: IP49518

Rear Sprocket Premium 60T / 420 black Fantic XM50 /XE50 after 2018

42,50 €
Currently not in stock
Standard Parts
Rear Sprocket 53T / 420 Doppler Origina Masai Rider 50
Article no.: CGN517184

Rear Sprocket 53T / 420 Doppler Origina Masai Rider 50

57,00 €
Currently not in stock
Conti
Rear Sprocket 53T / 420 Conti bi-metal red Senda / SX50 after 2011
Article no.: CGN513622

Rear Sprocket 53T / 420 Conti bi-metal red Senda / SX50 after 2011

68,00 €
Currently not in stock

Chain kit: chain, front sprocket, rear sprocket

Chain kit - components and function

Most motorcycles and mopeds use a front sprocket, rear sprocket (also called a chainring), and chain to transfer engine power to the rear wheel. These three parts together are referred to as a chain kit, and it is usually recommended to replace all components at the same time.

On a motorcycle or motocross bike, the front sprocket sits on the gearbox output shaft. On a moped, it is connected to the rear pulley (which in turn is driven by the V-belt).
This front sprocket drives the chain, which acts as the link between the engine and the rear wheel by turning the rear sprocket.
The rear sprocket is mounted to the rear wheel hub and ultimately turns the wheel so the bike moves forward.

There are different chain types that vary in size and length as well as intended use. There are basic chains or reinforced versions. Others are equipped with sealing rings (O-ring, X-ring, or U-ring), which makes them quieter and longer-lasting. For off-road use, there are special versions with specific surface finishes to withstand the demands of riding on rough terrain.

Front sprockets and rear sprockets are available in steel or aluminum (lighter, but less durable). For off-road use, self-cleaning versions are also available, with special cutouts between the teeth that help carry dirt away.

Choosing the right gearing

Each element of the chain kit should be selected carefully. Depending on engine output and intended use, different criteria can become important (see the previous chapter on off-road use).

Chain pitch is a key criterion: the more powerful the engine and the higher the torque, the larger the pitch.

An example: A classic moped uses a chain with a 415 pitch. An 85cc motocross bike, on the other hand, uses a 428 pitch, which is better suited to its output. A 1000cc sport bike uses a 530 pitch.

Choosing the right gearing has a direct impact on top speed and how responsive the bike feels. But caution: a weak engine cannot be run with gear ratio that is too tall. Except with very extensive engine tuning, it is best not to deviate too far from the manufacturer recommendations. It is also worth keeping in mind that with a larger change, a longer or shorter chain may be required (chain adjusters have their limits).

An example: The engine has been tuned with a higher-displacement cylinder. There is now significantly more torque and the goal is a bit more top-end speed. This can be done by fitting a larger front sprocket or a smaller rear sprocket. If a more direct response when exiting corners is preferred, a larger rear sprocket or a smaller front sprocket is used.

WARNING! One tooth more or less on the front sprocket has a much bigger effect than on the rear sprocket. It is generally said that one tooth on the front sprocket is roughly equivalent to three teeth on the rear sprocket.

Maintenance tips

Chain maintenance is very easy, but it needs to be done very regularly. Brushes and special products are available to clean the chain carefully and then grease it. The more thorough the work, the longer the chain kit lasts.

It should be noted that a new chain stretches a bit more during initial use than it does afterward. Chain tension should therefore be checked after the first ride and then regularly, to avoid the chain coming off or damage to the swingarm or other components (such as the shift lever on some models).

For off-road riders (motocross, enduro), chain care should be done after every ride, using a special off-road chain grease.

It should also be noted that some parts are in direct contact with the chain and their condition also needs to be monitored: the chain guide must a) be present and b) be in good condition so the chain does not come off. The swingarm slider protects the swingarm from friction caused by the chain.

Chain, front sprocket, and rear sprocket in our shop

In our online shop, complete chain kits are available for motorcycles, motocross bikes, and mopeds with chain drive, as well as all individual parts, to offer a very large selection.

Products in OEM quality are available, as well as reinforced versions from well-known brands such as AFAM, Iris, Moto Master, Prox, MotoForce, Stage6 or Voca Racing, Doppler, etc.

We try to always stock items for the most popular models on the market at the best prices and with short delivery times. Owners of Derbi Senda, Rieju MRT, Beta RR, Sherco SM/SE, Yamaha YZ / DT, KTM EXC / SX, Honda CRF ... etc. will find what they need.

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