World's motorcycle sprockets manufacturer

Speedway

Uncompromising on starts

Rear sprocket according to the rider!
Properties

- developed for the smallest weight load of the motorcycle
- the low weight will improve the motorcycle much easier handling
- the low weight will also improve the faster spin of the wheel during the start
- constantly strong and resistant to impact, bending and twisting
- long life thanks to our tooth profile
- produced entirely of aluminum

Size from small to large

Another construction of racing sprockets

Perfect performance transmission!
Properties

- unique shapes developed by us
- they will give a new exceptional look to your motorcycle
- constantly shifting the pinnacle of the development of modern sprockets
- very helpful for better off-road driving
- choice of any size of the number of teeth
- maximum working

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 rear sprockets have proven their quality very well in world offroad racing
- they showed their uniqueness in quality in the Spanish factory Gas Gas team
- they have supported several enduro world champions with their JDC features
- Paul Edmonson, Peteri Silvan, Xevi Puigdemont and Sebastien Guillaiume
- in the trial, they were world champions like Jordi Tarres or Adam Raga