This high-quality clip-style connecting link for RKM 420 standard non O-ring chains could keep you from getting stranded. It's always smart to have a spare master link in your garage or repair kit. Specifications: Pin length in mm: 14.8mm. Maximum wear life index: 100. Maximum tensile in pounds/feet: 4200 pounds/feet. Master link type: Clip. Weight in pounds per 100 links: 1.6 pounds. Max cc: 80cc street/80cc off-road. 24.0 links per foot. 12.7mm pin to pin center.