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Old 04-17-2015, 04:45 PM
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1QwkSport2.5r
 
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Join Date: Oct 2006
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If it's syrofoam, 31x18 is fine. It won't be very fast even if it is made from foam. My kamikaze is 32x18 and weighs 7lbs and I run a 1.20 4-stroke glow on it. Also a .90 SuperTigre and a .60 4-stroke.