DID is the world's largest supplier of high quality made in Japan motorcycle transmission and distribution chains for street, motocross, enduro, atv, trial and track bikes. The product lines DID includes chains series VX (x-ring quality/price) - ZVMX (x-ring top quality) - ER (racing track and off-road) - HD (without o-rings reinforced). DID chains are used to compose the best-selling transmission kits (chain - sprocket - pinion) on the market. Honda, Yamaha, Suzuki, Kawasaki, BMW, Ducati, Harley Davidson, Husqvarna, KTM, MV Agusta, Piaggio and many others use DID chains as original spare parts. DID contributes to the development of two-wheeled motor sports with important collaborations with renowned racing teams from all over the world such as Ducati Team MotoGP, Yamaha MotoGP Team, Honda World Motocross Team and numerous top teams of the USA AMA Supercross championship.