RK Chains 525 x 80 Links XSO Series Xring Sealed Natural Drive ChainTechnical Specifications: Brand: RK Chains Made In: Japan Chain Pitch: 525 Chain Length (Links): 80 Master Link(s) Included with chain: Rivet Chain Color: Natural Chain Type: Sealed Chain Model: XSO Seal Type (if applicable): Xring Seal Model (if applicable): RX Max Engine cc (Street): 900 Max Engine cc (Offroad): 750 Tensile Strength (lbs): 8400 Wear Index (if available): 3700 Chain Weight (if available): 4. 13 Provides two more lubricant pools than