hudy makes a very good one, similar is sold by jammin.
I use ultimate racing http://www.redrc.net/2007/10/ultimat...tire-balancer/ but with hudy setup nut.
I will be getting second one and it will be Hudy as it uses thumb nut compared to the one used by jammin.
Radek
V4 D8 - RX8, XERUN 4168SD
F1-09 - Tekin RS Pro, 17.5t Redline, 2S LiPo
Sakura Zero S - LRP, Saturn 20T, 2S LiPo
*EX-10 Eurus*