I have the Honda Magnum supports. They are 5" on center. They don't look like #143 at that web site. They angle back toward rear of bike but stay 5" apart all the way down to the bottom crossbar. Wayne

Black 07 America, Bags, Corbin Seats, Shield, Datatool Alarm, Sissy & Carrier, Engine Guards and Cruise Pegs. AI Removed. Progressive 412HDs & Intiminators. Misc upgrades.