D.I.D 520ERV3G&G100FTZB : D.I.D 520ERV3 X-Ring Chain Reel 520

D.I.D is a Japanese manufacturer of high-performance transmission parts that is renowned worldwide for the quality of its chains and chain kits. Type 'ERV' chains are made up of X-ring links and are directly derived from the chains used in MX competitions. They are designed for enduro and rally-raid use and are reinforced for greater longevity. They optimise the transmission of power to the rear wheel and improve the rider's feel when accelerating. They are treated with SDH, which provides them with anti-rust properties, reduces friction and offers greater resistance to organic materials, such as sand, mud, etc.