PARTS UNLIMITED 520 O-Ring Series Bulk Drive Chain 25 Feet PU520POX25FT

Features quad pin riveting, solid bushings and rollers, and tough O-ring seals, Shot-peened and pre-stretched, Recommended for motorcycles originally equipped with O-ring chains, Provides 1-1/2 times longer wear life than an O-ring chain and 12 times longer wear life than a standard chain, 520 chain includes clip connecting link, 525/530 chain includes rivet connecting link, Made in Japan