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Needing advice on tire sizes

790 Views 9 Replies 4 Participants Last post by  Turtles_ride
Hello! I just purchased a 2012 Tribeca (my 5th Subaru and 2nd EZ36 powered one!) and love it so far!

I've just put some Blizzaks on the stock wheels in the stock size (255/55/R18), and picked up some 18x8.5 ET35 wheels for a great price to use as a summer setup.

I've been considering going for something like 255/40/R18 on the new wheels, but want to know if there are any issues I'll run into? Other than the speedometer being off, and it looks like it would be about a 3 inch drop.
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you forgot to write most important thing - WHY WOULD YOU WANT TO DO THAT? :))
if you drive on paved roads only - most probably - no issues. (except rougher potholes, road repairs etc etc).
if you drive on gravel or off the roads - 3" lowering is quite illogical thing to do, imo.
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1) there ARE people out there modding Tribecas - despite all that **** "this car is not supposed to do this or that", "you should get different car for that" :D
2) for performance:
2.1) did you weight your new wheels?
2.2) did you check weight of your current tires and new ones?
2.3) less radius will give you that.

if you are into performance AND want to shave some more weight - brake rotors and calipers.... ;)
BUT! please, make good measurements BEFORE and AFTER :)))
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according to my "research" - facelift rim is 28.6lbs. (weight of factory wheels )
so - under 23 is great!

exhaust.....are you going for titanium? with mufflers like FlowMaster to reduce weight? :D
larger diameter rims "put" the weight further "out" - meaning the gain is less than that overall rim weight.
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