RK Racing Chain 520SO-128 Steel 128-Links O-Ring Chain

The 520SO is one of the best O-ring chains in the industry. 520SO chains feature heat treated hi-carbon alloy steel components with seamless rollers and shouldered bushings for strength and durability, and are fitted with O-ring seals. O-ring seals are made from an advanced nitrile butadiene composite for maximum performance and wear life. Nitrile butadiene O-rings seal in lubrication and deliver smooth power with no O-ring drag or loss of horsepower. Pin length in mm: 19.9mm. Maximum wear life index: 600. Maximum tensile in pounds/feet: 7700 pounds/feet. Master link type: clip. Weight in pounds per 100 links: 4.08 pounds. Maximum cc: 400cc street/400cc off-road. 19.2 links per foot. 15.875mm pin to pin center. Your original purchase of RK sealed-ring chain is warranted to be free of defects in material and workmanship for 20,000 miles of street riding or one year of off-road use. There is absolutely no warranty of any kind for an RK chain used in any racing competition.The 520SO is one of the best O-ring chains in the industry
520SO chains feature heat treated hi-carbon alloy steel components with seamless rollers and shouldered bushings for strength and durability, and are fitted with O-ring seals
O-ring seals are made from an advanced Nitrile butadiene composite for maximum performance and wear life
Nitrile butadiene O-rings seal in lubrication and deliver smooth power with no O-ring drag or loss of horsepower
The 520SO has a tensile strength rating of 7700 foot pounds and is rated for bikes up to 400cc