Yeah Baird, I'll have to flip it. I have it on with the concave out like the picture, and clearance is definitely an issue.actually, some bikes need the "dish" of the sprocket opposite of what any instructions might say. you'll know after everything is installed and you look at the alignment of your chain whether or not you gotta flip it.
Sorry, I missed your post somehow, (DOH!)That's a sweet exhaust pipe. Did you fashion it yourself?