Used by professional SX and MX race teams the MXZ chain features high-quality pins, bushings and rollers for maximum durability. Narrow, lightweight chain with 4-point riveted pins. Longer wear life than RK Standard Chain. Hard-chromized treatment on pins minimize stretch. Lightest Motocross chain on the market. 8,000 lbs. max tensile strength weighing in at a mere 3.02 lbs. per 100 links. Rated for MX models 125-500cc, 2- and 4-Stroke. 520H x 114, Natural