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Standard 420 Steel Sprocket (37, 39, 41, 43 teeth)

Réf : COUR-STAND-420 See the description

15.99€ 6.00€

9.99€

Teeth Number (Rear Sprocket)

In stock

Order it before 14:00 of today and receive it between tomorrow and 6/6/26 with DPD Livraison en relais Pickup

Plus que 9 part in stock parts in stock

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420 pitch sprocket with 37, 39, 41, or 43 teeth options for Dirt Bike, Pit Bike

This sprocket is compatible with all types of Dirt Bike and Pit Bike engines!

420 Sprocket for Dirt Bike, Pit bike

Diameter: 76mm

Mounting Center Distance: 90mm

Chain Pitch: 420

Number of Teeth: 37, 39, 41, 43 (optional)

Note: arrival without screws

Gray or black depending on arrival

Reminder:

Chain pitch 420 = approximately 6mm

Chain pitch 428 = approximately 7mm

Advice:

If you lengthen your transmission, you will gain top speed but lose engine torque/responsiveness.

If you shorten your transmission, you will gain torque and lose top speed.

For more information, download the full explanation for free in the "Mini MX Tips" tab.

Anodized sprocket screws compatible

La transmission

How to know the size of chain, sprocket, crown Dirt Bike, Pit Bike?

Download (712.15KB)

Our motorcycles, quads, pocket bikes, etc., are not approved for use on public roads. Their use is strictly limited to...

Regulations & Legal Obligations

Our motorcycles, quads, pocket bikes, etc., are not approved for use on public roads. Their use is strictly limited to closed, private tracks that comply with the provisions of Article R 331-21 of the French Sports Code.

Our vehicles (motorcycles, quads, buggies, etc.) intended for children should not be considered mere toys, but motorized machines belonging to the realm of motorsports, which involve inherent risks.

Minors under the age of 14 are not authorized to purchase, rent, or use non-approved vehicles, such as mini-motorcycles, children's quads, unapproved quads, motocross bikes, pocket bikes, pocket cross bikes, pit bikes, or dirt bikes. Their use is strictly limited to activities organized by approved sports associations, such as the FFM (French Motorcycling Federation) or UFOLEP (French Union of Secular Sports and Cultural Activities). It is important to note that the maximum speed of these vehicles on public roads is 24 km/h, which prohibits their use on public roads. Furthermore, minors under 16 years of age must be constantly supervised by an adult when using these machines.

To ensure your safety, it is essential to wear appropriate protective equipment, including an approved safety helmet, motocross-type safety glasses, gloves, elbow pads, knee pads, and a chest protector. It is also recommended to wear a long-sleeved top, long trousers, and high-top shoes that cover at least the ankle, ensuring that the laces are securely tied and away from the wheels, engine, and drive system.

You must register your machine with the Ministry of the Interior within 15 days of the purchase date. This process can be completed online at the following address: https://www.service-public.fr/particuliers/vosdroits/R20458. After submitting the declaration, you will receive an identification number to be engraved on the chassis and displayed on a visible plate. Please note that this plate can be removed during sporting activities.

We also encourage you to consult the charter outlining the rules to be followed for the use of your vehicle, available here: https://www.legifrance.gouv.fr/loda/id/JORFTEXT000020910287/, or to refer to the user manual, which you can download.