DID chain set consisting of a DID chain, a sprocket and a pinion. DID is an OEM of many Japanese and European brands. Leading racing teams in the Road and off-road sports rely on the technology of DID. DID VX2: The development of the successor to the tried and tested VM is also based on the long - term Experience of DID in the MotoGP and fulfills the highest demands through the use of the patented X-rings. Compared to its predecessor, the VX2 has a much higher tensile strength and running performance. - high durability and low friction due to patented X-ring