Powder coating is a very good process for certain things. But having powder coated motorcycle frames, there are issues. It is very hard, but also brittle. If there is flex in the underlying material, it can crack the powder coat.

Wanting to dismantle a wrecked wheel, wrecked by the errant BMW, so I could send the centre away for rebuilding with new spokes and rim, I tried undoing the spokes. To my surprise they all unscrewed easily and this wheel had been powder coated years ago.

In the past I have got very good results with a careful rub down with sandpaper and two coats of Valspar, cheap too.