wagonryan Posted May 21, 2012 Share Posted May 21, 2012 I'm looking at diamond racing pro series in the 15"X7" and I'm not sure which backspacing to get. I wanna run 215/75/15 general grabbers and they will definitely not fit with my current backspacing. I have about a centimeter from my 205/55/16's to the strut so I need the backspacing to stick the tire out about an inch or so to clear the strut. anyone use these on imps? Quote Link to comment Share on other sites More sharing options...
89ChevondaSI Posted May 21, 2012 Share Posted May 21, 2012 well I was rubbing on my stock wheels with bigger tires on the struts. now I have 215/75's and a better offset. if ur going with the 15x7 go with a 4" or 5" backspacing. that way you won't destroy WB's and other stuff but still have a nice look. Quote Link to comment Share on other sites More sharing options...
wagonryan Posted May 21, 2012 Author Share Posted May 21, 2012 Thanks a lot man, maybe I should just ask you these things on FB haha gonna go with a 4" backspacing then cause they don't have an option for 5". do you know what the backspacing for stock subaru alloys is? I could measure but i'm not at home atm Quote Link to comment Share on other sites More sharing options...
89ChevondaSI Posted May 21, 2012 Share Posted May 21, 2012 lets see.... 5.5in usually a +45 offset for stock.. so thats 5.5inx25.4 to convert to mm. which is 139.7 so 140 for esey math then half of that is 70 for the measurement then plus 45 = 115 then 115/25.4 to get back to inches = 4.53" of stock back spacing. so the diamond racing ones would give you an extra 1/2" Quote Link to comment Share on other sites More sharing options...
wagonryan Posted May 21, 2012 Author Share Posted May 21, 2012 Ok cool. thanks for breaking it down. so an extra 1/2" is 12.7mm extra clearance, which should fit perfect because the increase in tire width is only 10mm from stock. Quote Link to comment Share on other sites More sharing options...
89ChevondaSI Posted May 22, 2012 Share Posted May 22, 2012 Perfect. Quote Link to comment Share on other sites More sharing options...
scoobyclimbs Posted May 30, 2012 Share Posted May 30, 2012 I know wrx alloy 16" wheels are 55mm offset Stock outback alloy 16"wheels 45mm I have Konig incident 15" with a 40mm offset Quote Link to comment Share on other sites More sharing options...
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