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i need prop for my traxxas spartan any one need help am new to prop i know a lot in rc cars world and some boats but i dont really know about props so need one to make my spartan go i have different set up on my spartan so no worries about heating pm me what prop you have and will it make it go faster ? well there is different once out there i been told to look for 42mm but dont know what that has to be i think my shaft is 4.7mm