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05-10-2009, 10:29 PM | #1 |
Scooby Newbie
Member#: 49270
Join Date: Nov 2003
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245/45/17 on a 09 WRX wagon
Hi,
I have a 09 wrx Planing to buy some falken azenis for the track, Falken recommended a 8.5 width for the 235/40/17 and a 8 width for the 245/45/17 I find a little weird that they recommend a wider wheel for a smaller tire? Will I have any rubbing issue with 245 or should I stick to 235? I have stock supension (for now) Thanks
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05-11-2009, 12:28 AM | #2 |
Scooby Specialist
Member#: 177401
Join Date: Apr 2008
Chapter/Region:
Tri-State
Location: Philly
Vehicle:2015 STi White |
Sidewall plays a large role in determining what rim goes with what tire. 50, 45, and 40 sidewall all have different rim width requirements as you shift from a "regular" tire into a "low profile" tire. 40 sidewall requires a rim nearly as wide as the tire itself where on the other extreme 50 sidewall is better off with a rim considerably narrower than the tire. The tires are designed differently to deal with different sidewall stiffness.
245/45/17 is quite tall and probably not what you want. Your stock tire is 25" tall and I suggest something that tall or less. Many people like 24.5" tires for shortening the gears a bit (the 5-speed is a little tall for road racing). The 09 has pretty good clearance. Mattering on the offset of your rim, you should be able to fit 245/40/17 without much problem. Note that it's slightly shorter than stock which is again a good thing. Try to find a rim with an offset as close to +55 as you can find. 8.0" width will work for 245/40/17 but a little more rim width wouldn't hurt. However, if you have to sacrifice a lot of offset, you might get into rear fender rubbing problems. Tire rack has the MT1 on closeout which is a 5x100 17x8.5" rim with +48 offset. Might want to check that out... |
05-11-2009, 12:52 PM | #3 |
Scooby Newbie
Member#: 49270
Join Date: Nov 2003
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Thing is the Azenis is available in:
225/45R17 recommended 7.5 wide (my stock size) 235/40R17 recommended 8.5 wide 245/45R17 recommended 8 wide 255/40R17 recommended 9 wide (this one height wise is the same as stock) I would like to go with the widest possible without rubbing. I was thinking of the Rota DPT these sizes are available: 17x8 +48 17x9 +35 17x9 +42 |
05-11-2009, 02:33 PM | #4 |
Scooby Specialist
Member#: 177401
Join Date: Apr 2008
Chapter/Region:
Tri-State
Location: Philly
Vehicle:2015 STi White |
225/45 or 235/40 on the 17x8 +48 won't rub. Most of the other combinations are in the grey area.
I don't know what the Rota DPT looks like or why you are sold on Azenis tires but there are plenty of tires in the world available in 245/40/17 and plenty of 8 or 8.5" rims in the +48 to +55 range. I suggest if you really want that extra 10mm of tire, you re-think your rim and tire selection based on that size. Note that you might even have trouble with 245 if your suspension has a lot of give (lowered). 255/40/17 isn't impossible to fit. You just need 8.5" of width (or more) and as much offset as you can muster. You'll still have to roll the rears as well. I squeezed 255/40/17 on my 04 STi with a +48 17x8.5" rim. I need to roll my rears though, they cut into my tire's sidewall when I hit bumps. |
05-11-2009, 10:03 PM | #5 |
Scooby Specialist
Member#: 189525
Join Date: Sep 2008
Chapter/Region:
NWIC
Location: Portland Oregon
Vehicle:2007 WRX Wagon Invisible Plain |
Dude. You can put a 17x9 +42 on an '07 wagon, the '09 hatches have a bit more room to play with.
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05-12-2009, 08:40 AM | #6 |
Scooby Specialist
Member#: 66815
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SCIC
Location: 818=brow down!
Vehicle:2005 WRX Wag -SOLD:( CGM STX #125 |
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05-12-2009, 10:46 AM | #7 |
Scooby Newbie
Member#: 200813
Join Date: Jan 2009
Chapter/Region:
Tri-State
Location: dirty jersey
Vehicle:05 STI (Sold) WRB (whp 290) (ftlb 358) |
235 /40/ 18 on pink springs and struts 05 STI will they rub ??
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05-12-2009, 10:48 AM | #8 |
Scooby Specialist
Member#: 177401
Join Date: Apr 2008
Chapter/Region:
Tri-State
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Vehicle:2015 STi White |
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05-12-2009, 10:49 AM | #9 |
Scooby Newbie
Member#: 200813
Join Date: Jan 2009
Chapter/Region:
Tri-State
Location: dirty jersey
Vehicle:05 STI (Sold) WRB (whp 290) (ftlb 358) |
prodrive pff7's goodyear eagle F1
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05-12-2009, 10:50 AM | #10 |
Scooby Specialist
Member#: 177401
Join Date: Apr 2008
Chapter/Region:
Tri-State
Location: Philly
Vehicle:2015 STi White |
what's the rim?
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05-12-2009, 10:52 AM | #11 |
Scooby Newbie
Member#: 200813
Join Date: Jan 2009
Chapter/Region:
Tri-State
Location: dirty jersey
Vehicle:05 STI (Sold) WRB (whp 290) (ftlb 358) |
Prodrive pff7
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05-12-2009, 11:12 AM | #12 |
Scooby Specialist
Member#: 177401
Join Date: Apr 2008
Chapter/Region:
Tri-State
Location: Philly
Vehicle:2015 STi White |
what is the width and offset of the Prodrive pff7?
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05-12-2009, 11:20 AM | #13 |
Scooby Newbie
Member#: 200813
Join Date: Jan 2009
Chapter/Region:
Tri-State
Location: dirty jersey
Vehicle:05 STI (Sold) WRB (whp 290) (ftlb 358) |
thats what i dont know
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05-12-2009, 11:32 AM | #14 |
Scooby Newbie
Member#: 200813
Join Date: Jan 2009
Chapter/Region:
Tri-State
Location: dirty jersey
Vehicle:05 STI (Sold) WRB (whp 290) (ftlb 358) |
8.0 width +51mm offset 235/40/18 ??
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05-12-2009, 11:34 AM | #15 |
Scooby Specialist
Member#: 177401
Join Date: Apr 2008
Chapter/Region:
Tri-State
Location: Philly
Vehicle:2015 STi White |
On those springs I'd stick to 225/40 because the added height of 235/40 could cause problems. You could go 235/35 no problem but I doubt you want to sacrifice that much gear ratio for 10mm of tire width. 245/35 might be another option.
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05-12-2009, 11:40 AM | #16 |
Scooby Newbie
Member#: 200813
Join Date: Jan 2009
Chapter/Region:
Tri-State
Location: dirty jersey
Vehicle:05 STI (Sold) WRB (whp 290) (ftlb 358) |
its too late i got the 234 40 i just hope they fit im worried about the front not fitting
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