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A 17x9 +35 is more aggressive than 17x9.5 +38 in terms of fitting the wheels. Yes the 9.5 is wider but the offset determines where the center of the tire sits so on the 9.5s it's 3mm more inward than the 9 +35. The very outside of the rim is going to be out farther on the 9.5 but you'd have to be super slammed for it to become a problem.
Originally Posted by //steve\\,Jul 8 2010, 07:20 AM
A 17x9 +35 is more aggressive than 17x9.5 +38 in terms of fitting the wheels. Yes the 9.5 is wider but the offset determines where the center of the tire sits so on the 9.5s it's 3mm more inward than the 9 +35. The very outside of the rim is going to be out farther on the 9.5 but you'd have to be super slammed for it to become a problem.
A little confused by your post. If my calculations are correct, the 9.5 +38 is 3mm more aggressive on the front spacing, and 9mm more aggressive on the back spacing (which doesn't matter anyway, there is still plenty of space)
Either way, it's going to be very very similar fit if you stick to 255's mostly because on the 9.5 it'll stretch a tad more (just a hair), where it'll be pretty square on the 9.
I see what you're saying by where the center of the tire sits, but in this case it's so close I doubt either way would be much difference.
Originally Posted by Dreaming_S2k,Jul 8 2010, 07:45 AM
A little confused by your post. If my calculations are correct, the 9.5 +38 is 3mm more aggressive on the front spacing, and 9mm more aggressive on the back spacing (which doesn't matter anyway, there is still plenty of space)
Either way, it's going to be very very similar fit if you stick to 255's mostly because on the 9.5 it'll stretch a tad more (just a hair), where it'll be pretty square on the 9.
I see what you're saying by where the center of the tire sits, but in this case it's so close I doubt either way would be much difference.
You've got the right idea or I don't understand offset the way I thought I did. The way you need to look at it is if you take a 17x9 and a 17x10 both the exact same offset the center of where the wheel sits is exactly the same now you just have an extra .5" of rim on the inside and outside. Usually we run into problems when do something that moves the tire farther out such as running a +35 vs +38. On my setup now I can tell you for sure that if I ran a 17x9 +35 out back I'd rub even though I have no rubbing with the 9.5 +38. It's tight enough for me as is that I don't even think I've got 3mm to spare.
You are right though that the extra .5" of the rim will just barely stretch the tire some which always does help make them fit.
07-08-2010, 12:48 AM
