Harley Davidson Frame Cup & Bearing Conversion Kit. 52-56 K, KH; 57-77 XL BC44027

Frame cup & bearing conversion kit

This conversion kit fits all Pre-1977 K model and XL Sportsters that are still equipped with the stock early style loose ball bearings. 
This kit is used to replace the OEM style loose ball bearing system and convert it to the newer tapered style 45586-78 XL Sportster frame neck bearings. 
Complete kit with frame cups, bearing races, Timken style tapered bearings and dust shields. Nothing else required but some tools.  

Fits 52-56 K, KH; 57-77 XL Sportster (NU)