For 1952-1981 Sportster Ironheads and Early Model K Side Valves - Stock Frames Only!
- New neck cup set to convert 1952-1981 sportsters to fit a wide variety of big twin and aftermarket front ends with 1" stems.
- This Kit will ONLY work on stock frames running a aftermarket or stock Big Twin Front End.
- This will NOT allow you to run your stock 7/8"triple trees on an aftermarket front end such as a Paughco or Kraft Tech Frame.
- Also compensates for neck height increase, This Kit adds To the Overall Length of your Neck, in return making it a Overall Length of 7" inches.
- No welding or machining work required.
- Cups must be Pressed in.
- This kit converts old ball bearing XL cups for 7/8 stem front end to 1" stem front ends with Timken bearings.
- Comes in raw steel with bearings and races.
