Use these cups to convert Ironhead frames that originally used forks with 7/8″ Stem to fork that have a 1″ stem.

• Use this conversion kit when installing a Big Twin or late Sportster 1″ neck fork assembly on your early Ironhead Sportster.
• Simply remove your existing cups and install these steel cups into your frame neck, and you’re ready for Big Twin forks.
• Includes cups, bearings and races.

Fits K Model & Sportster 1952/1981