I saw this a while back, but now posting it. For those wanting a speed runner or onroad truggy, there is hope. Ipanema makes belted tires in different shore ratings.
http://ipanemasports.com/MonsterSlicks.aspx
6 KiloWatt A123 Racer
GTP-Pletty Big Maxximum+RX8. GTP-C50-6L Hacker+RX8. CRT.5-Pro4+ZTW esc.
24s2p EVG SX 49.6mph Ebike.
18s4p Raptor 60mph Ebike. 11.5KW