tbourner Posted February 14, 2005 Share Posted February 14, 2005 Rear tyres on 17s are: 255/40 ZR17. So for 16" wheels I'd need: 255/50 ZR16 right? I make that a 0.1mm difference in diameter? Quote Link to comment Share on other sites More sharing options...
merckx Posted February 14, 2005 Share Posted February 14, 2005 25mm diff according to this calculator http://216.239.59.104/search?q=cache:YED7aSXIj0sJ:www.tyresave.co.uk/tyresize.html+tyre+size+calculator&hl=en For 16" wheels you'll need 255/45 ZR16 ............ zero difference Quote Link to comment Share on other sites More sharing options...
tbourner Posted February 14, 2005 Author Share Posted February 14, 2005 Aah yes, I was taking the profile as the total not just on one side!! Had to double after multiplying by 0.4. Cool, 255/45 ZR16 then. Quote Link to comment Share on other sites More sharing options...
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