It will work on all Pro-One triple trees and many other aftermarket trees (installation on other trees may require some drilling)

Most ignition key switches have a 'D' shaped body so they don't rotate when you turn the key

ECM module relocation required

The overall length is 1"

These motorcycle tail lights are sold in pairs

Side Mount Headlight Bracket Set for Harley 39mm Narrow Glide Front Forks Banjo Fitting Size_15/32" / 12mm It will work on allThis Headlight Mount is a direct bolt on for 39mm Harley Davidson narrow glide front ends. Constructed from tumbled stainless steel this bracket will not rust and will last the life of your motorcycle. Perfect when eliminating headlight brow and running a side mount headlight Made in Cleveland, Ohio.