DID is a Japanese manufacturer of high-performance transmission parts and is internationally known for its quality chains and chain sets. They are very active in the racing world and deliver original parts for many engines.
- "VX" chains consist of X-rings and are intended for road use
- They have been developed to improve the transmission of power to the rear wheel, which is possible with a stiffer chain
- Thanks to the lower friction, these chains offer an excellent performance-to-life ratio