For what it's worth, my Predator made 52 hp at the countershaft when bone stock... but it weighs quite a bit more than the YFZ450 and I would be utterly shocked if the 450R doesn't end up weighing the same as or more than the YFZ.
Heck, for that matter, the DS650 also makes 52 hp from what I've read, but when you put that into a 500+ lb package, what does it matter?
That's awesome. I wish I could see it all happen. I wonder if Honda will be showing anything else besides the 450R. Maybe a bigger engine for the Rincon, a more powerful 650, or a whole new utility quad?
If you look real close you can see the photo is a fake. It's of the Arctic Cat DVX400, and somebody has carefully written "TRX" on the side. Either that or the 450R is a virtual dead ringer for the DVX.