CB125 cylinder kit, 1.With excellent wear risistance 2.Fine appearance,Free of burrs,Clean and smooth 3.Clear bore surface CB motorcycle cylinder:Adaptable Type:single, air cooling CylinderMaterial: Cast iron or Aluminum1.With excellent wear risistance2.Fine appearance,Free of burrs,Clean and smooth 3.Clear bore surface, oil-retaining4.Long work-life CB125 Motorcycle Cylinder Kit