D.I.D 520 MX Off-Road Chain - 114 Links - Gold 520MX-114MX series chain developed for motocross with Team Johnson Suzuki Bieffe in Europe; features 11% higher tensile strength, 20% higher fatigue strength, 13% stronger anti tight joint performance, 17% higher roller impact strength, and 20% longer wear resistance ER chain used by top motocross supercross OEM works teams ERT chain designed for motocross Each is high performance, lightweight, low friction chain designed exclusively for racing Provides the