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wheels [resin] arn,t that good for slot racing without some work first. i take off all the obvious flashing, as the modifer said. then lay it flat on a pillar drill, then drill and ream the hole size you want. i,ve got a lathe, so its not a problem. i tap the spindle into the wheel hole, chuck it in the lathe and take the lightest skim possible to true the pair of wheels. front wheels, job done. rear wheels take more stress, so i usuall turn an ally boss to slip and glue over the end of the wheels, to take a hole i can drill and tap m2 by 3mm long for a grubscrew fixing. you could use a tyre truer to skim the dia as long as its repeatable. if its a ridged wheel, you can only do it on a lathe. if youv,e only got a pillar drill, glue some fine grade emery to a face plate-90% block, spin the wheel assy by hand and set the emery at the lowest spot on the wheel, then clamp it to the table. run the chuck at medium speed and bring the wheel down onto the emery slowly as you dont want to melt any thing. if your unlucky and it doesn,t clean up fully, just give a light tap to the block to move it in slightly and repeat process. leave as set and do the second wheel. resin is pretty strong and the wheels wont break, even with big gee gee,s turning it. john
 
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