and the inside hole is 2

There are many styles of solo seat pivot brackets and seat spring mounts (weld-on and bolt-on) to choose from

This Replacement Dished Sprocket has 48 teeth and stock 6mm offset

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

These replicas of the square style stock coils come complete with mounting bracket

#3736-2 Air Cleaner Cover Mounting Screw Kit 1983-Up Harley-Davidson Big Twins - Chrome Subcategory_License Plate Hardware and the inside hole isChrome plated stock screw replaces OEM# 29269 83A and 29283 93. 1983 up Harley Davidson Big Twins. 5 16 18 thread. Made in Ohio, USA.