Technical Specifications:Brand: EK Chains Made In: Japan Chain Pitch: 530 Chain Length (Links): 130 Master Link(s) Included with chain: Clip Chain Color: Chrome Chain Type: Non Oring Chain Model: DR2 Drag Bike Seal Type (if applicable): Seal Model (if applicable): Max Engine cc (Street): 1400 Max Engine cc (Offroad): NA Tensile Strength (lbs): 10500 Wear Index (if available): 200 Chain Weight (if available): 4.75 When it comes to drag racing, no other chainmanufacturer can match EK's record fordependability, strength and having the fastestchain in the world! From professional top fueldrag racers to local amateurs, everyone agreesEK is the only logical choice. It's a fact, Larry Mcbride broke the 240mph (and 6 second barrier) in 2000 using an EK drag racing chain. This incredible world record was made in a single pass and ever since EK has been known as the "legend of drag racing chains" In the drag racing community, EK is the only reliable choice for serious racers who desire to break records in any class, includingAHDRA champions Phil Schmidt, Dales Raudenbush and Mike Romine 530DR2: For 250HP max; 10,500 tensile strength 530DRZ2: For 300HP max; 11,500 tensile strength630MS: For 500HP max; 11,880 tensile strength