I am a web designer and computer technician. I started making Gigaclocks on gigaclocks.com, which is a clock made out of a computer hard drive. I love buying and selling stuff on ebay.
Put on Senton 3s V3. Perfect on street, sand and dirt.
Tires work great. you will need the 17mm hex nuts to properly secure wheel. 12mm is not big enough.
I used these tires on the Senton 3s v3 and they grip! I suggest using a smaller pinion (cogging) and a 25kg+ servo to turn these monsters.