RK Racing Chain M520HD-140 (520 Series) 140-Links Standard Non O-Ring Chain with Connecting Link RKM series chains are made in Malaysia with Japanese steel, meeting all Japanese specs with two-point riveted pins and curled bushings Pre-stressed and pre-stretched for better performance with fewer adjustments, they outperform most of the competitions heavy-duty chains Maximum tensile in pounds/feet: 7700 pounds/feet; weight in pounds per 100 links: 3.65 pounds; max cc: 400cc street/NA-off-road Master link type: Clip; 19.2 links per foot; 15.875mm pin to pin center