mattdavies Posted March 28, 2012 Share Posted March 28, 2012 I am about to uprgrade my wheels on my supra, the previous owner has put 18x7.5 on front and back. the new wheels i have are 18x10 and 18x8.5. Just wondered what is the standard tyre size from factory and what size tyres would you recommend for my new wheels ? Quote Link to comment Share on other sites More sharing options...
ripped_fear Posted March 28, 2012 Share Posted March 28, 2012 Rim width---Min tyre width----Ideal tyre width-------Max tyre width 7.0 inches-----195 mm--------205 or 215 mm-----------225 mm 7.5 inches-----205 mm--------215 or 225 mm-----------235 mm 8.0 inches-----215 mm--------225 or 235 mm-----------245 mm 8.5 inches-----225 mm--------235 or 245 mm-----------255 mm 9,0 inches-----235 mm--------245 or 255 mm-----------265 mm 9.5 inches-----245 mm--------255 or 265 mm-----------275 mm 10.0 inches----255 mm--------265 or 275 mm-----------285 mm 10.5 inches----265 mm--------275 or 285 mm-----------295 mm 11.0 inches----275 mm--------285 or 295 mm-----------305 mm 11.5 inches----285 mm--------295 or 305 mm-----------315 mm 12.0 inches----295 mm--------305 or 315 mm-----------325 mm 12.5 inches----305 mm--------315 or 325 mm-----------335 mm hope this helps. Quote Link to comment Share on other sites More sharing options...
mattdavies Posted March 28, 2012 Author Share Posted March 28, 2012 Yeh that is useful, thank you. Does anyone know what standard j-spec wheels run tyre size wise. Just so I have reference for rolling circumference etc. Quote Link to comment Share on other sites More sharing options...
ripped_fear Posted March 28, 2012 Share Posted March 28, 2012 Yeh that is useful, thank you. Does anyone know what standard j-spec wheels run tyre size wise. Just so I have reference for rolling circumference etc. iirc the stock 17 where, 225 and the rears 245 or 255. Quote Link to comment Share on other sites More sharing options...
Josh Posted March 28, 2012 Share Posted March 28, 2012 My stock 17" wheels had 235/45/17 front and 255/40/17 rear iirc. Might not be factory sizes but they seem to fit fine. Quote Link to comment Share on other sites More sharing options...
mattdavies Posted March 28, 2012 Author Share Posted March 28, 2012 That's useful to know. Thank you Quote Link to comment Share on other sites More sharing options...
qwarrior Posted March 29, 2012 Share Posted March 29, 2012 My stock 17" wheels had 235/45/17 front and 255/40/17 rear iirc. Might not be factory sizes but they seem to fit fine. Similar, my stock J-Spec is as above but with 255/45/17 rear. Quote Link to comment Share on other sites More sharing options...
Dnk Posted March 29, 2012 Share Posted March 29, 2012 (edited) These are the stock sizes for the 16" and 17" wheels Front 225 50 16 Rear 245 45 16 Front 235 45 17 Rear 255 40 17 You should use the tyre calculators to get the correct profile to keep the rolling radius close to o/e, http://www.etyres.co.uk/tyre-size-calculator.htm Also heres a good offset calculator http://www.1010tires.com/wheeloffsetcalculator.asp Edited March 29, 2012 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
garethr Posted March 29, 2012 Share Posted March 29, 2012 Stock Sizes were 225/50-16 F&R or F 225/50-16 and R 245/50-16 or 245/45-16 or F 235/45/17 front R 255/40/17 http://powerdog.com/tiresize.cgi http://www.carbibles.com/tyre_bible.html EDIT: Too slow Quote Link to comment Share on other sites More sharing options...
Dnk Posted March 29, 2012 Share Posted March 29, 2012 Quote Link to comment Share on other sites More sharing options...
mattdavies Posted March 29, 2012 Author Share Posted March 29, 2012 (edited) All very useful. i have been using a sit called willtheyfit.com , only issue with this is that it sometimes redirects you to dodgy sites which is annoying as it is a useful tool. edit: i have just looked at the two site you uploaded links for, and will they fit combines both of the sites and also gives you a readout of speedo error at 60 + 30mph Edited March 29, 2012 by mattdavies (see edit history) Quote Link to comment Share on other sites More sharing options...
Colin-mkiv Posted March 29, 2012 Share Posted March 29, 2012 I'm running 235/40/17 tyres on 8.5" fronts and 255/45/17 tyres on 9.5" rears. Nice sharp turn in and not jarring etc over bumps and humps. Hope this is of use to you... Quote Link to comment Share on other sites More sharing options...
mattdavies Posted March 29, 2012 Author Share Posted March 29, 2012 yeh, i have bought the tyres for the rear now, i still havent purchased the fronts. ( i am having to buy two sets to make a staggered set ) Quote Link to comment Share on other sites More sharing options...
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