This'll really boost his image.
Yes, I totally agree that it absolutely will boost his image!
If you lived in Wisconsin which I did for a decade, home of Harley Davidson, you would understand that Bikers are well respected there. Very patriotic groups.
There are many Christian biker clubs, and many Vets belong to clubs.
As one who was ambushed at the Chicago Trump rally by 200 or so thugs, I certainly would have appreciated seeing 1,200 bikers. I was lucky the police showed up when they did because those anarchist disruptors were frigtenning... but then you may not know much about Chicago either.