The multipurpose S&S degree wheel can be used to do ignition timing, crankcase breather timing, cam degreeing, or you name it. The wheel is designed to fit the sprocket shaft of any big twin or Harley Davidson Sportster model simply by using the correct adapter provided. Each kit also comes with a pointer which is held in place with the center crankcase bolt. This aid is a must for every well equipped engine building shop. Includes: Adapter for Sportster Adapter for big twin Pointer Degree wheel and main adapter assembly

S&S Part #: 53-0020