I've never used anything like this, and don't know about clearance, but if you have to down shift in a panic situation do you really want to try to get your toe under the peg while braking heavily?
Thinking safety,
Fred.
I have the other kind (the not-Interstate kind)... I love having access to the shifter and the
brake when my feet are on the hi-way pegs, but If I get in an emergency situation, I'll
be hoping my feet are on the get-R-done pegs...

I'm guessing the Interstate kind is only reversed when you're using the forward controls?
-Mike