All chains are made with Japanese steel and meet all Japanese specs.
420 RK-M STANDARD
Suitable for 80cc max street and offroad use
Average tensile strength of 4,200 lbs.
428 RK-M STANDARD
Suitable for 125cc max street or 80cc max. offroad use
Average tensile strength of 4,500 lbs.
520 RK-M STANDARD
Suitable for 250cc max street and offroad use
Average tensile strength of 6,800 lbs.
525 RK-M STANDARD
Suitable for 400cc max. street use
Average tensile strength 6,800 lbs.
530 RK-M STANDARD
Suitable for 400cc max street use
Average tensile strength of 6800 lbs.
RK RECOMMENDED CHAIN APPLICATIONS
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 one chains probable life to another under identical circumstances. A higher number indicates longer chain life.