I get adapters for a very low price so that ain't a problem £200,- for 4x20mm.
The plan is to run 255/35 so the tire price ain't that bad. And if you compare the RUFF Racing to VOSSEN and so on i get almost all 4 RUFF rims for the price of 1 VOSSEN.
That taken in consideration the cost of a couple adapters is ok
