This pull start cage is Laser cut out of 12 gauge to convert your kickstart chinese motor to a pullstart. It will work on Lifan ,Zongshen, or Jialing engines between 50cc to 140cc kick start only. The inner diameter has been increased to fit on the modern cdi flywheels it can either be tack welded or drilled and tapped. The spacer is cut out of 3/16" mild steel also. These 2 items are needed when you want to convert your Chinese Kick Start motor over to Pull Start using your stock Ignition Cover and Pull start from your ATC70.