Wow! Those are some substantial tires!
I've taken my Volae Tour on some 'Single Track' with no problem. It's shod with a 20 x 1.25 front and a 26 x 1.5 on the rear. Looking at that Speedster image you found I imagine it handles off road quite well and would be very much 'at home' on crushed limestone bikeways.
Last edited by cranky old dude; 03-30-12 at 05:56 PM.