Originally Posted by
DesertRat
You can get Ulti X compound tires as donuts, and they generally work very well on carpet. I see that you're in Belgium so I'm not sure where you would buy them but they are available in the USA through KoPropo, so you may have your own affiliate.
Cant seem to find Ulti donuts in Europe. Prolly need to try Japan again
Thx for the tip.