The perfect choice for Lightweight Racing such as off-road trials or smaller capacity road racing (up to 250cc) SDH pin technology means the 520ERS3 boasts strength, but is also D.I.D's lightest 520 pitch chain Unmatched performance with a non-sealed rivet-style (ZJ) master link, specifially designed for the 520ERS3 chain Great for club racing or top-level competition racing bikes up to 250cc Made in Japan Part description explanation: eg, 520ERS3 x 120 520 = chain pitch; ERS3 = chain model; x 120 = number of chain links (bike/sprocket specific – please check fitment charts or contact us) We recommend all motorcycle parts are fitted and tested by qualified professionals. If you are unsure about the part choice for your bike, please contact us before purchase. DID Chain Spec chart
