relentless Posted July 30, 2008 Share Posted July 30, 2008 Its just one thing after another of late! - After finally getting my windscreen replaced when a nice huge crack appeared after hitting a stone on the M6 (rac windscreens did a great job btw), i then got a puncture! Its in the tyre wall so its a complete new tyre which im not happy about! It a JDM with 17" wheels, with orginal Bridgstone Potenza RE040's which i know are supposed to be poor, especially in the wet. The tyre with puncture is the rear nearside - 235/50/17. Will i be able to fit a different sized tyre to the rim and will it effect the speedo readings? Im toying with getting some used 18" alloys and tyres (stock ones) as you can pick them up dirt cheap with good tread tyres. WIll this effect the speedo rating too? What kind of costs are involved in getting the speedo recalibrated if need to? cheers Mark Quote Link to comment Share on other sites More sharing options...
Sarnie Posted July 30, 2008 Share Posted July 30, 2008 No need to recalibrate the speedo if you buy 18's with stock size tyres e.g 225/45 + 245/45 PS get rid of those vile 17's...................... 50 aspect ratio Quote Link to comment Share on other sites More sharing options...
GIXXERUK Posted July 31, 2008 Share Posted July 31, 2008 go up on the wheel size and down on the tyre profile, this will retain the same rolling radius, speedo will be ok Quote Link to comment Share on other sites More sharing options...
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