Anyone here use lug adapters? If so, what's your experience on them? It's so hard to find wheels from Japan with 4x100 so I'm thinking of either doing a 5 lug swap or just be cheap and do a lug adapter but I just want to know if it's safe or not.

 

I'm running 1.25" 5x114.3 to 5x120 converter and no problems so far

 

Going from a 4-lug to 5-lug setup (or some other change in overall bolt quantity) will require a really thick adapter, due to not having space for the new pattern in the spacer.

Is it safe? It can be, with a good quality adapter. Is it a smarter idea just to swap to a 5x114.3 hub setup? Yes.