DID Motocross Chain - Made in Japan Don't settle for anything less. Used by Ryan Villopoto to win 4 AMA SX titles All D.I.D 'ER' chains are designed exclusively for racing. 520ERT3 is used by the top factory SX and MX Teams to win races. 520MX chain has higher tensile strength for maximum performance and is ideal for muddy and sandy conditions. 520VT2 for offroad applications where a sealed chain is preferred, D.I.D's 520VT2 X-Ring chain provides excellent low friction high performance. D.I.D's exclusive SDH pin treatment is featured on the 520ERT2, 520 MX, 520DZ and all NZ Series chains. Fits: Honda CR250R 1979-1980 XR200R 1981-1985 1989-2002 XR250R 1992-1995 XR400R 1996-2005 Husqvarna TE449 2011-2013 Kawasaki KDX200 2007-2008 Suzuki DR350SE 1996 1999 Yamaha WR250R 2008-2013