We use a spacer to add to the 1.25″ male piece that pops on and off. (included with Mach2 1.25″ purchase)
(top picture – Adapter off for use in a 1.25″ hitch receiver)
Adapter on for use in a 2″ hitch receiver. You then insert the male w/adapter into the 2″ hitch receiver and tighten it down.
NOTE: These are older pictures of a prototype. Product will be slightly different