20A or 25A is a good replacement. Some people don't use one at all. You don't need to use 30A, I use a 11.1v lipo and almost never blow 15A fuses.
If you want to lower the current that runs through the wires, adjusting the motor height or properly shimming the gearbox would be a good idea.
Last edited by Skladfin; April 4th, 2009 at 21:32..
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