I had researched slip-on mufflers on J&P Cycles web site. They listed the Monster Ovals as a choice when I searched for my 2013 Tri-Glide. I ran across a used set on Ebay for a heck of a deal (considering these list for over $700) and bought them. After a big ordeal getting them, the owner went into the hospital and took 32 days to receive them. Anyway, I finally get around to install them yesterday and they would hit the fiberglass above them if put on the mounting brackets. I thought about spacing them down so they don't hit, but this left me with only 3 1/2 inches of ground clearance. Considering they stuck out a bit farther I felt I would be dragging them on the road all the time. Checked out the Vance and Hines website and guess what, they say the Monster Ovals don't fit trikes!! I love the way they sound. Anyone with a two-wheeler want to buy them?