Brand New Race-Driven Non-O-Ring Chain. You will receive 1 - 520-98L Non-O-Ring Chain to replace the chain on the following: 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Yamaha Warrior 350 YFM350. All chains include a masterlink. These chains are designed for the casual - recreational rider. Race-Driven branded non-o-ring chain has an average tensile strength in excess of 7600 lbs. Race-Driven offers different qualities of chain, we have our basic non-o-ring chain and o-ring chain, make sure when purchasing a chain you do so according to your riding style. Non -O-Ring chain is just that, it doesn't have o-rings between the links so it is lighter, thinner and has less drag. Race-Driven is committed to bringing the highest quality products to all riders at an affordable price. Customer Driven – Quality Driven – Race-Driven.