Forgot to mention that I had these fitted when at a Rowah trackday a few weeks ago. Included two for the footrests.
Was a bit of a bugger drilling and tapping the spindles (no power, borrowed cordless drills) but using power tools and mine own taps would have been better.
Much better quality than the skateboard wheels I had on my XR650 (disintegrated on contact with a gravel track).
Available from PecGaz via http://www.visordown.com in the supermoto section
Sorry, no pics, as over my attachment limit here.