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STPA MiniRod

By Jeff Shirley |
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STPA R/C Mini Rod class pulling tractor.  The tractor uses Servocity 1/4" shafts, .770 hubs, 1/2"x 1/4" bearings, 16t 5mm pinion and aluminum spur gear.  It took first at R/C pulling Midwest Nationals by over 2'. I run a Castle 6900kv 1406 motor on 3s for power and a mg996 servo handles steering.  The truck weighs 6# and typically pulls 25-30#.  All chassis, front axle and suitcase weights were machined by me.