How about using a lawn mower blade balancing device?
http://www.sears.com/shc/s/p_10153_1...ancer&sLevel=0
It may or may not work - depends a lot on wether you can get the wheel centered on the stepped cone or not.
Losi 8T 1.0, Savage Flux - XL style, LST XXL, Muggy, 3.3 E-Revo Conversion and sitting outside 425hp, 831 Tq Dodge Ram Turbo Diesel. It SMOKES