These Motor Mount Plates with Forward Control Adapters fit EVO Gasbox full hardtail frames and stock 1952-1981 Harley-Davidson Ironhead Sportster frames

and the threads are 24 TPI

Must be used with custom upper fork clamp

Replaces OEM# 18570-38

Weld-On Stainless Steel Light Mount - Prism Supply Co. Box Chopper Tail Light Brand_ODI These Motor Mount Plates withDesigned to be used with the Prism Supply Co. Box Chopper Tail Light 1 8" thick weld on mounting bracket Stainless Steel Contains two 1 4 28 tapped holes for mounting the tail light Check out other Tail Lights and Tail Light Mounts and License Plate Brackets from Prism Supply Co.