mine were offset by a wheel manufacturer, so i have their manufacturing expertise to fall back on. they are the same offset as wolf rims, which are fitted to defenders as standard (130's).
tyre fitters are not the law. they will tell you what you want to hear to sell tyres or make their job easier. with the vehicle compliance laws changing since VSB14 and VSI50 were raised, insurance companies will be looking to use these laws as loopholes to reject insurance claims.

