RK 520SO is a Classic ! The best choice if you are looking for an economical chain for motorcycle from 250cc to 400cc. Developed with Polaris ATV with Special Heat Treatment for Off-road Usage."
"8849
530 Japanese non seal Heavy Duty chain.RK heavy duty chains are manufactured from carbon alloy steel, heat-treated and shot-peened for maximum strength and durability.Application:250-400cc"
"8943