At AC Racing, we're all about ensuring your high-performance vehicles are always race-ready. Our DID ERV3 O-ring rivet link is an essential addition if you plan to run your 600cc car with the ERV3 O-ring chain. Remember, the chain only comes with a standard link with clip, making this specific rivet link a must-have. Ordinary DID 520 links won't fit, so we recommend keeping a few extras in your trailer to avoid any last-minute hassles. Equip your car with the right parts from AC Racing and stay ahead of the competition.