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Scooter
50cc Bike
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Chains and Sprockets

(26 products)
Gearboxes Chains and Sprockets Gear Drives Transmission Accessories
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26
624
products
found
26
624
products
found
Product type
Chain kit Front sprocket
Brand
AFAM Doppler Moto Master MotoForce MotoForce Racing Renthal Standard Parts STR8
Chain links
116 120 136 142
Colour
Black Blue Chrome Red Silver Néochrome
Price
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MotoForce
Front Sprocket Motoforce Minarelli AM6 428
Article no.: MF890005_MF_BPIGNON_AM6_428
35

Front Sprocket Motoforce Minarelli AM6 428

from 6,00 €
In stock
6,10 €
-2% Discount
MotoForce
Front Sprocket Motoforce Minarelli AM6 420
Article no.: MF8900000_MF_BPIGNON_AM6_420
68

Front Sprocket Motoforce Minarelli AM6 420

from 5,50 €
In stock
MotoForce
Chain Kit Motoforce 13x53 - 428 Derbi Senda X-treme
Article no.: MF89.00203
11

Chain Kit Motoforce 13x53 - 428 Derbi Senda X-treme

57,00 €
In stock
RRP
73,50 €
-22% Discount
Sale
MotoForce
Front Sprocket Motoforce Derbi Euro 3
Article no.: MF890000_MF_PIGNONBOITE_DERBI2006
74

Front Sprocket Motoforce Derbi Euro 3

from 5,00 €
In stock
MotoForce Racing
Front Sprocket 15 teeth 420 MotoForce Racing AM6 Neochrome
Article no.: MF89.00026

Front Sprocket 15 teeth 420 MotoForce Racing AM6 Neochrome

10,00 €
In stock
RRP
10,50 €
-5% Discount
Standard Parts
Front Sprocket 428 Derbi / Gilera / Aprilia
Article no.: MF89.0001_PIGNON_DERBI_428

Front Sprocket 428 Derbi / Gilera / Aprilia

from 7,20 €
In stock
Moto Master
Front Sprocket Moto Master 520 15T KTM / Husqvarna / Beta / GasGas
Article no.: MMAST-12121485

Front Sprocket Moto Master 520 15T KTM / Husqvarna / Beta / GasGas

15,00 €
In stock
RRP
18,00 €
-17% Discount
Sale
Moto Master
Front Sprocket Moto Master 520 15T YZ 125 / 250
Article no.: MMAST-12121481

Front Sprocket Moto Master 520 15T YZ 125 / 250

12,00 €
In stock
RRP
18,00 €
-33% Discount
Doppler
Front Sprocket Doppler - 420 Black coating Minarelli AM6
Article no.: CGN420NOIRAM6

Front Sprocket Doppler - 420 Black coating Minarelli AM6

from 11,50 €
In stock
Renthal
Front Sprocket Renthal 520 T15 self-cleaning Kawasaki YZ 250 / YZF 450
Article no.: REN-R28952015

Front Sprocket Renthal 520 T15 self-cleaning Kawasaki YZ 250 / YZF 450

17,50 €
In stock
RRP
24,00 €
-27% Discount
Renthal
Front Sprocket Renthal 520 Z.15 self-cleaning RM 250 / DR-Z 400
Article no.: REN-12121661

Front Sprocket Renthal 520 Z.15 self-cleaning RM 250 / DR-Z 400

14,50 €
In stock
RRP
25,00 €
-42% Discount
AFAM
Front Sprocket AFAM 15 teeth 525 Hyosung GT 650 / Cagiva / Kawasaki / Suzuki
Article no.: AFAM28401-15

Front Sprocket AFAM 15 teeth 525 Hyosung GT 650 / Cagiva / Kawasaki / Suzuki

3,50 €
In stock
RRP
9,40 €
-63% Discount
AFAM
Front Sprocket AFAM 15 teeth 520 Aprilia AF1 / Pegaso
Article no.: AFAM61201-15

Front Sprocket AFAM 15 teeth 520 Aprilia AF1 / Pegaso

5,40 €
In stock
RRP
9,70 €
-44% Discount
AFAM
Front Sprocket AFAM 15 teeth 428 Yamaha / Beta / HM / Rieju 125
Article no.: AFAM21208-15

Front Sprocket AFAM 15 teeth 428 Yamaha / Beta / HM / Rieju 125

6,80 €
In stock
AFAM
Chain Kit AFAM 15x39 SYM XS 125 K
Article no.: AFAMKS-A-7

Chain Kit AFAM 15x39 SYM XS 125 K

25,50 €
In stock
RRP
40,00 €
-36% Discount
AFAM
Front Sprocket AFAM 420 Minarelli AM6
Article no.: AFAM94119/SIZE
1

Front Sprocket AFAM 420 Minarelli AM6

from 7,00 €
In stock
AFAM
Front Sprocket AFAM 420 Derbi
Article no.: AFAM49102/SIZE
1

Front Sprocket AFAM 420 Derbi

from 6,30 €
In stock
MotoForce Racing
Front Sprocket 15 teeth 420 MotoForce Racing Derbi Neochrome
Article no.: MF89.00023

Front Sprocket 15 teeth 420 MotoForce Racing Derbi Neochrome

9,00 €
In stock soon
RRP
10,50 €
-14% Discount
Doppler
Front Sprocket Doppler - 420 Neochrome Minarelli AM6
Article no.: CGN420NEOAM6

Front Sprocket Doppler - 420 Neochrome Minarelli AM6

from 11,00 €
In stock soon
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
Str8
Front Sprocket 420 red Derbi
Article no.: STR-71REDDERBI

Front Sprocket 420 red Derbi

10,50 €
Currently not in stock
Str8
Front Sprocket 420 blue Minarelli AM6
Article no.: STR-71BLUEAM6

Front Sprocket 420 blue Minarelli AM6

from 8,80 €
Currently not in stock
Doppler
Front Sprocket Doppler - 420 Neochrome Derbi
Article no.: CGN420NEODERBI

Front Sprocket Doppler - 420 Neochrome Derbi

from 11,50 €
Currently not in stock
12,00 €
-4% Discount
Doppler
Front Sprocket Doppler - 420 Black coating Derbi
Article no.: CGN420NOIRDERBI

Front Sprocket Doppler - 420 Black coating Derbi

from 12,00 €
Currently not in stock
AFAM
Front Sprocket AFAM 15 teeth 428 Kymco Pulsar / Sector / Maxxer / Derbi / Honda / Daelim
Article no.: AFAM20200-15

Front Sprocket AFAM 15 teeth 428 Kymco Pulsar / Sector / Maxxer / Derbi / Honda / Daelim

7,30 €
Currently not in stock
AFAM
Chain Kit AFAM 15x53 - 420 Derbi Senda X-treme
Article no.: AFAMKS-A-173

Chain Kit AFAM 15x53 - 420 Derbi Senda X-treme

48,00 €
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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