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Chains and Sprockets

(135 products)
Gearboxes Chains and Sprockets Gear Drives Transmission Accessories
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Product type
Chain Chain kit
Brand
AFAM Doppler Moose Racing Renthal Stage6 Standard Parts
Chain links
74 78 80 84 86 88 90 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 136 138 140 142 144 146 148 150
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AFAM
Chain Kit AFAM XS-Ring 15x45 Aprilia SX125 2008 - 2010
Article no.: AFAMKS-A-188

Chain Kit AFAM XS-Ring 15x45 Aprilia SX125 2008 - 2010

98,00 €
Currently not in stock
AFAM
Chain Kit AFAM extra reinforced 14x45 KTM RC 125 after 2014
Article no.: AFAMKS-A-160

Chain Kit AFAM extra reinforced 14x45 KTM RC 125 after 2014

115,00 €
Currently not in stock
AFAM
Chain Kit AFAM extra reinf. 14x45 KTM Duke 125 before 2013
Article no.: AFAMKS-A-153

Chain Kit AFAM extra reinf. 14x45 KTM Duke 125 before 2013

108,00 €
Currently not in stock
AFAM
Chain Kit AFAM extra reinf. 14x45 KTM Duke 125 after 2014
Article no.: AFAMKS-A-154

Chain Kit AFAM extra reinf. 14x45 KTM Duke 125 after 2014

114,00 €
Currently not in stock
AFAM
Chain Kit AFAM 17x40 Aprilia RS125 2006 - 2010
Article no.: AFAMKS-A-182

Chain Kit AFAM 17x40 Aprilia RS125 2006 - 2010

92,50 €
Currently not in stock
AFAM
Chain Kit AFAM 16x39 Kymco CK 125
Article no.: AFAMKS-A-8

Chain Kit AFAM 16x39 Kymco CK 125

38,50 €
Currently not in stock
AFAM
Chain Kit AFAM 15x45 KTM Duke / RC 390 after 2014
Article no.: AFAMKS-A-155

Chain Kit AFAM 15x45 KTM Duke / RC 390 after 2014

103,00 €
Currently not in stock
AFAM
Chain Kit AFAM 15x44 Hyosung GT 650 / Comet / Naked
Article no.: AFAMKS-A-63

Chain Kit AFAM 15x44 Hyosung GT 650 / Comet / Naked

108,00 €
Currently not in stock
AFAM
Chain Kit AFAM 15x39 Kymco Pulsar 125
Article no.: AFAMKS-A-6

Chain Kit AFAM 15x39 Kymco Pulsar 125

38,50 €
Currently not in stock
AFAM
Chain Kit AFAM 15x38 Kymco Sector 125
Article no.: AFAMKS-A-4

Chain Kit AFAM 15x38 Kymco Sector 125

36,50 €
Currently not in stock
AFAM
Chain Kit AFAM 14x52 Hyosung GT 125 / Naked
Article no.: AFAMKS-A-57

Chain Kit AFAM 14x52 Hyosung GT 125 / Naked

93,00 €
Currently not in stock
AFAM
Chain Kit AFAM 14x45 KTM RC 125 after 2014
Article no.: AFAMKS-A-159

Chain Kit AFAM 14x45 KTM RC 125 after 2014

102,00 €
Currently not in stock
AFAM
Chain Kit AFAM 14x45 KTM Duke 125 before 2013
Article no.: AFAMKS-A-151

Chain Kit AFAM 14x45 KTM Duke 125 before 2013

96,50 €
Currently not in stock
AFAM
Chain AFAM XS-Ring reinforced black 525 XMR3 108 links
Article no.: AFAM525XMR3-108

Chain AFAM XS-Ring reinforced black 525 XMR3 108 links

80,50 €
Currently not in stock
AFAM
Chain AFAM XS-Ring hyper reinforced gold 525 XHR3 112 links
Article no.: AFAM525XHR3-112

Chain AFAM XS-Ring hyper reinforced gold 525 XHR3 112 links

138,00 €
Currently not in stock
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123

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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