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Chain rear sprocket
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AFAM Moose Racing Moto Master Renthal Standard Parts
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Moose Racing
Rear Sprocket steel 520 Moose Racing KTM / Husqvarna 51T black
Article no.: MR12101751

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

22,00 €
In stock
RRP
32,00 €
-31% Discount
Sale
Moose Racing
Rear Sprocket alu / steel 520 Moose Racing Beta / Honda 51T red
Article no.: MR12101471

Rear Sprocket alu / steel 520 Moose Racing Beta / Honda 51T red

56,00 €
In stock
RRP
70,00 €
-20% Discount
Sale
Moto Master
Rear Sprocket Moto Master 520 Fusion 51T black KTM / Husqvarna
Article no.: MMAST-12112241

Rear Sprocket Moto Master 520 Fusion 51T black KTM / Husqvarna

51,00 €
In stock
RRP
80,00 €
-36% Discount
Sale
Moto Master
Rear Sprocket Moto Master 420 aluminium 51 teeth black KX 85
Article no.: MMAST-12112188

Rear Sprocket Moto Master 420 aluminium 51 teeth black KX 85

20,00 €
In stock
RRP
54,00 €
-63% Discount
Moto Master
Rear Sprocket Moto Master 520 steel 51T KX /KXF
Article no.: MMAST-12102251

Rear Sprocket Moto Master 520 steel 51T KX /KXF

31,00 €
In stock
RRP
49,00 €
-37% Discount
Sale
Moto Master
Rear Sprocket Moto Master 520 steel 51T RM / RM-Z
Article no.: MMAST-12102229

Rear Sprocket Moto Master 520 steel 51T RM / RM-Z

34,00 €
In stock
RRP
49,00 €
-31% Discount
Sale
Renthal
Rear Sprocket Renthal 420 Z.51 Ultra Light self-cleaning green KX 80 / 85
Article no.: REN-12111680

Rear Sprocket Renthal 420 Z.51 Ultra Light self-cleaning green KX 80 / 85

62,00 €
In stock
Renthal
Rear Sprocket Renthal 520 Z.51 Ultra Light self-cleaning CR / CRF
Article no.: REN-12111143

Rear Sprocket Renthal 520 Z.51 Ultra Light self-cleaning CR / CRF

21,00 €
In stock
RRP
54,50 €
-61% Discount
Renthal
Rear Sprocket Renthal 520 51T Ultra Light self-cleaning black YZ / YZF
Article no.: REN-12110028

Rear Sprocket Renthal 520 51T Ultra Light self-cleaning black YZ / YZF

55,00 €
In stock
58,50 €
-6% Discount
Sale
Moto Master
Rear Sprocket Moto Master 520 alu 51T blue YZ / YZF
Article no.: MMAST-12112312

Rear Sprocket Moto Master 520 alu 51T blue YZ / YZF

54,00 €
Currently not in stock
Renthal
Rear Sprocket Renthal 520 51T Ultra Light self-cleaning blue YZ / YZF
Article no.: REN-12110167

Rear Sprocket Renthal 520 51T Ultra Light self-cleaning blue YZ / YZF

58,50 €
Currently not in stock
Renthal
Rear Sprocket Renthal 520 51T Ultra Light self-cleaning red CR / CRF
Article no.: REN-12110162

Rear Sprocket Renthal 520 51T Ultra Light self-cleaning red CR / CRF

58,50 €
Currently not in stock
Moose Racing
Rear Sprocket alu / steel 520 Moose Racing KTM / Husqvarna 51T blue
Article no.: MR12101830

Rear Sprocket alu / steel 520 Moose Racing KTM / Husqvarna 51T blue

61,00 €
Currently not in stock
Moose Racing
Rear Sprocket steel 520 Moose Racing RM / RM-Z 51T black
Article no.: MR12101787

Rear Sprocket steel 520 Moose Racing RM / RM-Z 51T black

31,00 €
Currently not in stock
Moose Racing
Rear Sprocket steel 520 Moose Racing KX / KXF 51T black
Article no.: MR12101780

Rear Sprocket steel 520 Moose Racing KX / KXF 51T black

27,50 €
Currently not in stock
Moose Racing
Rear Sprocket steel 520 Moose Racing Beta / Honda 51T black
Article no.: MR12101758

Rear Sprocket steel 520 Moose Racing Beta / Honda 51T black

27,50 €
Currently not in stock
Moose Racing
Rear Sprocket steel 520 Moose Racing Beta / Husqvarna 51T black
Article no.: MR12101737

Rear Sprocket steel 520 Moose Racing Beta / Husqvarna 51T black

27,50 €
Currently not in stock
Moose Racing
Rear Sprocket alu / steel 520 Moose Racing KTM / Husqvarna 51T orange
Article no.: MR12101525

Rear Sprocket alu / steel 520 Moose Racing KTM / Husqvarna 51T orange

61,00 €
Currently not in stock
Moose Racing
Rear Sprocket alu / steel 520 Moose Racing RM / RM-Z 51T black
Article no.: MR12101506

Rear Sprocket alu / steel 520 Moose Racing RM / RM-Z 51T black

61,00 €
Currently not in stock
Moose Racing
Rear Sprocket alu / steel 520 Moose Racing KX / KXF 51T black
Article no.: MR12101496

Rear Sprocket alu / steel 520 Moose Racing KX / KXF 51T black

61,00 €
Currently not in stock
Moose Racing
Rear Sprocket alu / steel 520 Moose Racing Yamaha 51T blue
Article no.: MR12101486

Rear Sprocket alu / steel 520 Moose Racing Yamaha 51T blue

61,00 €
Currently not in stock
Moose Racing
Rear Sprocket alu / steel 520 Moose Racing Yamaha 51T
Article no.: MR12101485

Rear Sprocket alu / steel 520 Moose Racing Yamaha 51T

61,00 €
Currently not in stock
Moose Racing
Rear Sprocket alu / steel 520 Moose Racing Yamaha 51T black
Article no.: MR12101484

Rear Sprocket alu / steel 520 Moose Racing Yamaha 51T black

61,00 €
Currently not in stock
Moose Racing
Rear Sprocket alu / steel 520 Moose Racing Beta / Honda 51T black
Article no.: MR12101469

Rear Sprocket alu / steel 520 Moose Racing Beta / Honda 51T black

61,00 €
Currently not in stock
Moose Racing
Rear Sprocket alu 520 Moose Racing KTM / Husqvarna 51T blue
Article no.: MR12111916

Rear Sprocket alu 520 Moose Racing KTM / Husqvarna 51T blue

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing 51 teeth blue
Article no.: MR12111908

Rear Sprocket aluminium 520 Moose Racing 51 teeth blue

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket alu 520 Moose Racing Beta RR 51T red
Article no.: MR12111868

Rear Sprocket alu 520 Moose Racing Beta RR 51T red

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing 51 teeth red
Article no.: MR12111653

Rear Sprocket aluminium 520 Moose Racing 51 teeth red

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket alu 520 Moose Racing Yamaha 51T blue
Article no.: MR12111621

Rear Sprocket alu 520 Moose Racing Yamaha 51T blue

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing Suzuki 51 teeth
Article no.: MR12111580

Rear Sprocket aluminium 520 Moose Racing Suzuki 51 teeth

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket alu 520 Moose Racing KTM / Husqvarna 51T
Article no.: MR12111555

Rear Sprocket alu 520 Moose Racing KTM / Husqvarna 51T

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket aluminium 520 Moose Racing 51 teeth
Article no.: MR12111541

Rear Sprocket aluminium 520 Moose Racing 51 teeth

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket alu 520 Moose Racing KX / KXF 51T black
Article no.: MR12111468

Rear Sprocket alu 520 Moose Racing KX / KXF 51T black

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket alu 520 Moose Racing KTM / Husqvarna 51T black
Article no.: MR12111457

Rear Sprocket alu 520 Moose Racing KTM / Husqvarna 51T black

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket alu 520 Moose Racing Beta / Husqvarna 51T black
Article no.: MR12111443

Rear Sprocket alu 520 Moose Racing Beta / Husqvarna 51T black

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket alu 520 Moose Racing Beta / Honda 51T black
Article no.: MR12111418

Rear Sprocket alu 520 Moose Racing Beta / Honda 51T black

39,50 €
Currently not in stock
Moose Racing
Rear Sprocket alu 520 Moose Racing KTM / Husqvarna 51T orange
Article no.: MR12111663

Rear Sprocket alu 520 Moose Racing KTM / Husqvarna 51T orange

39,50 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 alu 51T blue TM Racing MX / EN
Article no.: MMAST-12112458

Rear Sprocket Moto Master 520 alu 51T blue TM Racing MX / EN

48,50 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 420 alu 51T black TC / SX 65
Article no.: MMAST-12112377

Rear Sprocket Moto Master 420 alu 51T black TC / SX 65

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 Fusion 51T blue Sherco / Beta
Article no.: MMAST-12112362

Rear Sprocket Moto Master 520 Fusion 51T blue Sherco / Beta

73,50 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 Fusion 51T red Sherco / Beta
Article no.: MMAST-12112357

Rear Sprocket Moto Master 520 Fusion 51T red Sherco / Beta

73,50 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 Fusion 51T black Sherco / Beta
Article no.: MMAST-12112352

Rear Sprocket Moto Master 520 Fusion 51T black Sherco / Beta

73,50 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 alu 51T blue Sherco / Beta
Article no.: MMAST-12112347

Rear Sprocket Moto Master 520 alu 51T blue Sherco / Beta

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 alu 51T black Sherco / Beta
Article no.: MMAST-12112331

Rear Sprocket Moto Master 520 alu 51T black Sherco / Beta

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 Fusion 51T blue YZ / YZF
Article no.: MMAST-12112323

Rear Sprocket Moto Master 520 Fusion 51T blue YZ / YZF

73,50 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 Fusion 51T black YZ / YZF
Article no.: MMAST-12112318

Rear Sprocket Moto Master 520 Fusion 51T black YZ / YZF

73,50 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 alu 51T black YZ / YZF
Article no.: MMAST-12112299

Rear Sprocket Moto Master 520 alu 51T black YZ / YZF

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 428 alu 51T orange TC / SX 85
Article no.: MMAST-12112273

Rear Sprocket Moto Master 428 alu 51T orange TC / SX 85

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 428 alu 51T blue TC / SX 85
Article no.: MMAST-12112266

Rear Sprocket Moto Master 428 alu 51T blue TC / SX 85

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 428 alu 51T black TC / SX 85
Article no.: MMAST-12112259

Rear Sprocket Moto Master 428 alu 51T black TC / SX 85

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 Fusion 51T orange KTM / Husqvarna
Article no.: MMAST-12112251

Rear Sprocket Moto Master 520 Fusion 51T orange KTM / Husqvarna

73,50 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 Fusion 51T blue KTM / Husqvarna
Article no.: MMAST-12112246

Rear Sprocket Moto Master 520 Fusion 51T blue KTM / Husqvarna

73,50 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 alu 51T orange KTM / Husqvarna
Article no.: MMAST-12112234

Rear Sprocket Moto Master 520 alu 51T orange KTM / Husqvarna

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 alu 51T blue KTM / Husqvarna
Article no.: MMAST-12112219

Rear Sprocket Moto Master 520 alu 51T blue KTM / Husqvarna

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 alu 51T black KTM / Husqvarna
Article no.: MMAST-12112204

Rear Sprocket Moto Master 520 alu 51T black KTM / Husqvarna

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 Fusion 51T black KXF 250 / 450
Article no.: MMAST-12112183

Rear Sprocket Moto Master 520 Fusion 51T black KXF 250 / 450

73,50 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 alu 51T black KXF 250 / 450
Article no.: MMAST-12112177

Rear Sprocket Moto Master 520 alu 51T black KXF 250 / 450

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 428 alu 51T blue RM 85 / YZ 85
Article no.: MMAST-12112152

Rear Sprocket Moto Master 428 alu 51T blue RM 85 / YZ 85

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 428 alu 51T black RM 85 / YZ 85
Article no.: MMAST-12112130

Rear Sprocket Moto Master 428 alu 51T black RM 85 / YZ 85

54,00 €
Currently not in stock
Moto Master
Rear Sprocket Moto Master 520 Fusion 51T red CR / CRF
Article no.: MMAST-12112111

Rear Sprocket Moto Master 520 Fusion 51T red CR / CRF

73,50 €
Currently not in stock
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12

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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