World's motorcycle sprockets manufacturer

ATV/Quadcross

Perfectly tuned gear

Atypical models for ATV and QUADCROSS!
Properties

- constantly strong and resistant to impact, bending and twisting
- long life thanks to our tooth profile
- perfectly tuned transmission thanks to the various number of teeth
- produced entirely of aluminum
- the gold series used by top quadcross riders
- unique shapes developed by us
- they will give a new exceptional look to your quad
- constantly shifting the pinnacle of the development of modern sprockets
- very helpful for better off-road driving
- maximum working

Choose your style

Heavy-duty in difficult terrain

Amazingly extended lifespan!
Properties

- one of a kind
- special for quadcross and rally
- it is very useful when driving in extra difficult conditions such as mud and sand
- exceptional very durable with approx. 2x longer service life
- long life thanks to our tooth profile
- constantly strong and resistant to impact, bending and twisting
- produced entirely of aluminum
- constantly shifting the pinnacle of the development of modern sprockets
- they will give a new exceptional look to your quad
- very helpful for better off-road driving
- maximum functionality to achieve the best results
- colour only olive

Unique production

Properties of racing sprockets

Colour

- each rear sprocket is coated with a colored anodized layer
- colors are available: silver, red, blue, gold, black, graphite, titanium, cherry, orange, olive
- we use a non-standard modern process where the surface of the sprocket hardens even more
- the surface is very resistant to weather and chemical influences and maintains a constant color

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Material

- the production material is extra strong, high quality 100% aluminum 7075 T6
- the rear sprocket is thus much lighter, very strong, resistant to bending and twisting
- the main features are the highest hardness and thus wear resistance
- the rider himself will appreciate the features when riding in extreme conditions

Weight

- all models are designed for maximum performance
- light weight plays a big part in this
- our engineers use a special computer program to develop the rear sprocket
- the result is minimum weight, highest resistance, strength against impacts, bending and twisting

Mud groove

- developed and created to improve the clean transmission when driving in difficult terrain
- the rear sprockets for offroad are equipped with a mud drain
- the important function of the mud groove is to push the mud out of the interdental gap and extend the service life
- we make a mud groove on both sides of the sprocket to ensure symmetrical chain guidance in the center of the sprocket
- we don't have the profile only as a decoration. It's thoroughly thought out for the easiest possible removal of mud from the gap

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Precision

- even the slightest inaccuracy can spoil a rider's performance
- therefore, we constantly check accuracy and precision during production
- the long-developed gearing has our specific and very efficient shape, which we constantly check
- we achieve the maximum possible quality and service life of the sprocket thanks to our tooth shape

Races

- JDC sprockets have a very high level even in quad, directly in quadcross
- the JDC brand is used by Josef Cisar, who won the title of champion of the Czech Republic 3 times
- he always had a perfectly tuned transmission to get the best performance to the rear wheels
- JDC sprockets were also used by rider Jeremy Warnia with the GAS GAS team in the European class