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Fits K Model & Sportster 1952-81
- Raw Steel Neck Cup Conversion KitUse this conversion kit when installing a Big Twin or late Sportster 1" neck fork assembly on your early Sportster
- Allows easy installation of our Hardbody springers as well
- Simply remove your existing cups and install these steel cups into your frame neck and you are ready for Big Twin forks
- Includes Timken bearings and races