All RK sealed motorcycle chains are warranted to the original purchaser to be free of mechanical defects in material and workmanship for 20,000 miles of street use or two years from date of purchase, whichever comes first. There is a one-year manufacturers warranty for off-road use. The warranty shall not apply to products subjected to improper fitment, installation or usage; racing, accident, negligence, alteration, abuse or misuse. Further, the chain is not an endless chain and must be installed correctly with the appropriate RK connecting link. There is no warranty of any kind for any RK chain used in any racing competition.
Always replace your chain with the same size/grade/type of chain that came stock on the bike from the factory. If a motorcycle came from the factory with an endless chain, we recommend that RK replacement chains be installed with an RK Rivet type connecting link and press-fit tool. A wear life index is a way to compare on chains probable life to another under identical circumstances. A higher number indicates longer chain life.