tom_gr7 Posted October 16, 2014 Share Posted October 16, 2014 Hi guys, I've got 215/45/17's my mates got a set of 215/50/17's for sale. So can i switch from 45's to 50's? I find i feel alot of the bumps on the roads, so was wondering if going up to 50's would east that a little? Would this cause any problems with my speedo? thanks in advance edit, oh i looked on this site. - http://www.etyres.co.uk/tyre-size-calculator Scroll down, it checks the difference between the two sizes. In this case, it says "Difference in diameter: 3.52% Actual diameter change: 22mm" and "We recommend a MAXIMUM of +/- 2.5% difference" maybe its not such a good idea. mmmhhmmm Quote Link to comment Share on other sites More sharing options...
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