After work today I decided to test out the Hyper 7 I finished up for my son. I put my spare electronics in there. 13L C50 Hacker, 125B Qaurk, DE BEC, 4S A123 and the cheapo ebay tires. Used a 20T pinion and it still had enough ummphh to pull my son(41lbs) on my Sector 9 longboard. Here's a snippet of the few runs we did. Neighbors were cracking up to say the least.
http://www.youtube.com/watch?v=I5BXVafQDgw
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