Vortex 520 x 120 Links RX3 Track Racing Series Xring Sealed Black Drive ChainTechnical Specifications: Brand: Vortex Made In: Japan Chain Pitch: 520 Chain Length (Links): 120 Master Link(s) Included with chain: Rivet Chain Color: Black Chain Type: Sealed Chain Model: RX3 Track Racing Seal Type (if applicable): Xring Seal Model (if applicable): X Max Engine cc (Street): 1000 Max Engine cc (Offroad): NA Tensile Strength (lbs): 8500 Wear Index (if available): NA Chain Weight (if available): NA Drilled links reduce rotating mass