EK Chain 520SRO6112 520 x 112 Links SRO6 Series O-Ring Drive Chain

The EK Chain 520SRO6 is a value-priced 520-pitch O-ring motorcycle drive chain delivering proven quality and durability without compromise. This 112-link chain is manufactured in Japan using high-tech heat-treated steel alloys, making it a reliable choice for street, dual-sport, and off-road motorcycles as well as ATVs rated up to 650cc.

EK's O-ring design keeps lubricant sealed inside each link while blocking out dirt, grit, water, and mud — reducing wear and extending service life compared to standard non-sealed chains. Integrated lightening holes reduce overall chain weight while maintaining structural integrity.

Key Features:

• 520 pitch — 112 links, natural finish
• O-ring sealed design locks in lube and keeps out contaminants
• High-tech heat-treated steel alloy construction throughout
• Lightening holes reduce weight without sacrificing strength
• Average tensile strength: 8,000–8,500 lbs.
• Rated for engines up to 650cc — street, touring, or dirt applications
• Clip-type master link included
• Made in Japan

The EK SRO6 is an ideal replacement drive chain for small to mid-displacement motorcycles, dual-sport bikes, and ATVs. Its combination of Japanese manufacturing quality, O-ring sealing technology, and accessible price point makes it a popular upgrade over standard non-sealed chains.

California Residents: WARNING — This product contains chemicals known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.