- Manufacturer: RK
RK 420SO Standard O-Ring Chain
RK offers the best O-ring chains in the industry. All RK O-ring chains are constructed of hi-carbon alloy steel for strength and durability.
RK utilizes Nitrite Butadiene O-rings to seal in lubrication and deliver smooth power with no O-ring drag or loss of horsepower.
- Features a flat contact patch that holds the lubrication in place, resulting in a smooth transfer of power
- Three times the wear life of a standard non O-ring chain
- Strongest, lightest, quietest, most durable RK chain available
- Eight times the wear of standard chain
- Designed to handle the ever-increasing horsepower ratings of today's bikes
- 420 SO - For street and dirt bikes up to 125cc