ShawnPreece Posted November 14, 2016 Share Posted November 14, 2016 (edited) With my build I am doing this winter I will be running 2 sets of wheels next summer when its back on the road and need help with the rim sizing of one of my tyre sets.... First set will be road tyres 315/30/18 and will sit nicely on my Rota GTR-D's that are 18x12j however im needing help with my second set... Iv got myself a set of M&H Racemasters in 325/50/15... obviously I want a 15 inch diameter but wondering the J to go for as I know the tyres on these road legal drag radials balloon out slightly so am I better off going for an 11j rim for the width? I will be ordering from CCW but just wondering the best size to go for so any help from anyone who has experience in this would be greatly appreciated thanks Edited November 14, 2016 by ShawnPreece (see edit history) Link to comment Share on other sites More sharing options...
David P Posted November 14, 2016 Share Posted November 14, 2016 What brakes fit under 15" rims? Link to comment Share on other sites More sharing options...
ShawnPreece Posted November 14, 2016 Author Share Posted November 14, 2016 What brakes fit under 15" rims? only 15 inch on the rear, got 18 inch on the front. I got UK brakes atm which from placing the empty tyre in the arch looks like the rim should clear fine Link to comment Share on other sites More sharing options...
mellonman Posted November 14, 2016 Share Posted November 14, 2016 Dont know of many 15s that clear uk brakes , I think theres thread on supra forums Link to comment Share on other sites More sharing options...
James Posted November 14, 2016 Share Posted November 14, 2016 Yeah I imagine you'll need J-spec rear brakes to get 15" wheels on there. Link to comment Share on other sites More sharing options...
ShawnPreece Posted November 14, 2016 Author Share Posted November 14, 2016 Ahh ok cheers guys, il put Jspec on the rear if I need to then but just looking to order the wheels for now does anyone know the recommended size for rim to tyre on drag radials? Is it the same as normal or is it better going a size smaller because of the sidewall? Link to comment Share on other sites More sharing options...
James Posted November 14, 2016 Share Posted November 14, 2016 Have a read here Shawn: http://www.supraforums.com/forum/showthread.php?217594-Average-guy-s-review-of-325-50-15-s&highlight=325/50/15 Seems some are using a 15x10, 15x10.5 or 15x11 with a 325/50/15 radial. Link to comment Share on other sites More sharing options...
James Posted November 14, 2016 Share Posted November 14, 2016 http://www.titanmotorsports.com/900160mph.html 15x10 here as well. Link to comment Share on other sites More sharing options...
ShawnPreece Posted November 14, 2016 Author Share Posted November 14, 2016 Have a read here Shawn: http://www.supraforums.com/forum/showthread.php?217594-Average-guy-s-review-of-325-50-15-s&highlight=325/50/15 Seems some are using a 15x10, 15x10.5 or 15x11 with a 325/50/15 radial. http://www.titanmotorsports.com/900160mph.html 15x10 here as well. Thanks mate that's perfect Link to comment Share on other sites More sharing options...
Carbon_Bullet Posted November 14, 2016 Share Posted November 14, 2016 Here's another random question to do with big wheels and tyres, is there any out there which for over the big 4pot k sport brakes? Link to comment Share on other sites More sharing options...
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