RK Chains 530Prodr Pro Drag Chain RK Chains' 530 Pro Drag Chain is today's strongest drag racing chain, featuring a tensile strength of 11,880lb. Features: Built to withstand the extreme loads of a drag racing launch Non-sealed Reinforced components with heat-resistant treatment Highest tensile strength on the market Specifications: Weight: 5.12 lbs / 100 links Tensile Strength: 11,875 lbs Max Horsepower: 320 Master Link Type: Rivet & Clip