Well I installed the trailer Hitch yesterday, on the 2010 model you have to use the security Torx bit they sell to remove the bolts. The 09' doesn't have these, then bolting the hitch is easy. If you have an air table like I did it's a 15 minute job. The only thing eaiser then the hitch is installing the wire harness, make sure you use zip ties.
Now I know that Harley doesn't like trailer hitches, and I don't plan on pulling t trailer with my bike.
But I also want to keep my warranty in place, so here is why I installed the hitch. I'm disabled I have a state issued parking card on my bike. I plan on using a hitch mounted platform to haul my walker when I need it, I'll also have a mount for my kane. This is the reason I have a trike, I have bad feet and couldn't hold up the 2 wheel anymore.
So I intend on informing Harley that I'm using a trailer Hitch and why, if they want to void my warranty I'll tell them that I'm filing a complaint with the Americans with Disabilites act.
ADA Home Page - ada.gov - Information and Technical Assistance on the Americans with Disabilities Act
A member of our HOG club used this and Harley gave him a free extended Warranty.
Wish me Luck