Pics of Hayashis? I don't recall ever seeing a double step lip/barrel for 14 to 16, but It could exist. VR Wheels or WheelFlip would be good resources to talk to.
Actually, do your 14" Hayashis have stepped lips? B/c then the face would effectively be a 13", which would need an even crazier lip/barrel combo to reach 16".
If 16" is the end goal, you might be better off selling them and getting some bigger wheels tbh.
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