SSR
In 1971 SSR released the first 3 piece wheel, the MK1. Aluminum wheels were in high demand and resulted in the creation of JWL (Japan Light Alloy Wheel) Certification in 1973. The Japanese Government incorporates this certification on aluminum wheels to improve quality and safety. JWL certification involves testing impact strength and endurance strength. SSR wheels are always put through JWL testing before they are used on the street or track.
SSR
In 1971 SSR released the first 3 piece wheel, the MK1. Aluminum wheels were in high demand and resulted in the creation of JWL (Japan Light Alloy Wheel) Certification in 1973. The Japanese Government incorporates this certification on aluminum wheels to improve quality and safety. JWL certification involves testing impact strength and endurance strength. SSR wheels are always put through JWL testing before they are used on the street or track.
