RK Racing Chain 520-SO-70 (520 Series) Steel 70 Link Traditional Street and Off-Road O-Ring Chain with Connecting Link


  • SO’s O-ring is constructed from Nitrite Butadiene to seal in lubrication and deliver smooth power with minimal seal ring drag or loss of horsepower
  • 520SO chains are suitable for low to mid-range CC motorcycles that came from the factory with sealed chains
  • 520SO can be used for both on street and off-road up to 400ccs
  • Tensile Strength: 6,900 lbs; Max CC Rating: 400cc Street, 400cc Off-road/ATV; Max Horsepower: 60 HP; Weight per 100 Links: 3.39 lbs; Max Chain Width: 21.7mm; Master Link Included: Clip type