My understanding is that a total lift of more than 50mm requires an engineers certificate. So with your 40mm OME lift you can't take the tyres more than 10mm extra radius. You could probably go to a 265/60R18 tyre, which will fit without scrubbing or needing guard cutting.
FYI the standard tyre is 29" diameter, the 265/60R18 is 30.5", so 18.75mm increase in radius. It would pass my mechanic on pink slip, but who's to say another mechanic won't check the tyre size against the placard?
Food for thought...


Reply With Quote
Bookmarks