I was noticing alot of slack in the stock wheels and looked closely and the plastic has wallered out some. i was planning on doing the full size with mod anyway so i took it a step further and came out with a GREAT end result.
I got on my metal lathe and made a cylinder with a .125 outter diamiter and drilled a .052 hole into the center. i made it from brass so it would not effect the magnet and its the lightnest weight thing i had around. i then drilled an 1/8 inch hole into the center of the wheel i was going to place onto the front. (Zip Zap wheels are the best because the hubcap covers the brass cylinder) i then centered and glued the cylinder into the wheel. after drying i had aperfect fitting no slack wheel that will never wear out. the brass isnt visible at all unless u turn the wheels and really look close. the hadling is much better. there is WAY less drag with the cylinder spinning on the pin than the plastic spinning on the pin. when oiled it is outstading.
The only draw back is all the holes HAVE to be EXACT in the center and strait. i used a mill to make sure all holes where strait. But all in all its an easy thing to make.
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