RK Chains 520 x 72 Links HD Standard Series Non Oring Natural Drive ChainTechnical Specifications: Brand: RK Chains Made In: Malaysia Chain Pitch: 520 Chain Length (Links): 72 Master Link(s) Included with chain: Clip Chain Color: Natural Chain Type: Non Oring Chain Model: HD Standard Seal Type (if applicable): Seal Model (if applicable): Max Engine cc (Street): 400 Max Engine cc (Offroad): 250 Tensile Strength (lbs): 7700 Wear Index (if available): 200 Chain Weight (if available): 3. 51 All chains are made with Japanese