Robm Member 8 Member For: 11y 5m 3d Posted 05/01/14 12:43 PM Share Posted 05/01/14 12:43 PM I am looking at going from my current 17" wheels with the recommended 235/45's, to 18's, 235/40. Can anyone who has done this let me know if/how far this put the speedo out? and which way (I'm presuming you will be going faster than the speedo shows, not good with all the cameras. The speedo reads 2km faster than I am (GPS) driving at, which is perfect and would to retain similar. Regards. Link to comment https://www.fordxr6turbo.com/forum/topic/87217-wheel-upsize/ Share on other sites More sharing options...
Panda Eyes flame magnet Gold Donating Members 5,674 Member For: 17y 22d Gender: Male Location: adelaide hills- 'race air' central Posted 06/01/14 01:28 AM Share Posted 06/01/14 01:28 AM http://tire-size-conversion.com/tire-size-calculator/ Link to comment https://www.fordxr6turbo.com/forum/topic/87217-wheel-upsize/#findComment-1448521 Share on other sites More sharing options...
sexual harrassment panda I see a red door and I want to paint it black Donating Members 5,919 Member For: 15y 7m 13d Gender: Male Location: Far north queensland Posted 06/01/14 02:06 AM Share Posted 06/01/14 02:06 AM tyre size can be changed in the cars computer Link to comment https://www.fordxr6turbo.com/forum/topic/87217-wheel-upsize/#findComment-1448525 Share on other sites More sharing options...
Robm Member 8 Member For: 11y 5m 3d Posted 07/01/14 02:22 PM Author Share Posted 07/01/14 02:22 PM Thanks guys, that chart will be very useful on all my cars in the future and knowing the comp can be adjusted is good. Too much tech-NO-logy these days. Whatever happened to the 265/14 retreads of my youth??? Widest tyre you could get in the mid-eighties, apart from a 295 or 305, but they cost way more than the $100 retread which was worn out in 3 weeks anyway - lol. Link to comment https://www.fordxr6turbo.com/forum/topic/87217-wheel-upsize/#findComment-1448779 Share on other sites More sharing options...
Robm Member 8 Member For: 11y 5m 3d Posted 09/01/14 10:05 AM Author Share Posted 09/01/14 10:05 AM UPDATE - 5 x 18x8" PDW C-Spec wheels bought. Will put 245/40's on when my 17's expire. Thanx for the advice. (Buy 3, get one free on all 2013 PDW's till 31 Jan. Great deal, bought 5 for less than the normal price of 4.) Link to comment https://www.fordxr6turbo.com/forum/topic/87217-wheel-upsize/#findComment-1449098 Share on other sites More sharing options...
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