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question abotu set of wheels and tires i'm ordering from tirerack


mmanus88

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i am ordering BBS RGR diamond black rims, Size Selected: 18x7.5 Recommended Tire Size: 225/40-18. also i am getting pirellie neros: Sidewall Style: Blackwall 225/40-18 SL WR Speed Rated teh suabru stock wheels had a diff tire size, i assume thats because they were ment to fit with the stock 17 inch rims? ia m not too familiar with sizes and whatnot, so i mathced up teh tire size of the neros with what was reccomended by the BBS rims (tirerack warns u if ur tire and rims don't match) and i selected the option to have them fitted before shipping. i was supposed to order tires that are rated at the size specified by BBS, right? what i ordered in terms of sizes and model(s) is posted above. btw, this is for a legacy gt limited (2005) thanks!
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225/40R18 is the "correct" size, which I have run with my WRX and now the GT. Overall Diameter = Diameter of wheel + (width of tire x aspect ratio/100 x 2) If you do some calculations, you will find that: 18" + (225mm x 40% x 2) is barely larger than 17" + (215mm x 45% x 2) or 16" + (205mm x 55% x 2). The last one was the size used on most Imprezas and Legacies in many years.
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When you guys upgrade to 18' wheels, do you find the ride quality to hurt even more? I find the ride on the stock 17' wheels t o be already pretty harsh. The cabin rattles when it goes over bumps. Do you find your cars to rattle even more when going with bigger wheels? I can't imagine how bad it would be with bigger wheels.
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B4GT - While most 18" tires do have stiffer sidewalls than 17" ones and have harsher rides, it also depends on the specific tire model. There are some super stiff 17", and there are some relatively soft 18". Therefore, one can't make a blanket statement.
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[quote name='mmanus88']yep, the rims were my own choosing (expensive as hell!) but i did go witht eh pirellis as a second choice (toyos weren't available. still good tires, and having them pre-fit was a plus[/QUOTE] Yeah, but BBS are worth the money. I want BBS CH wheels, but not available for our cars. I am on the verge of ordering Prodive GC-010s......a little more expensive than the BBS wheels you ordered. Are we crazy, spending more than 10% of the cost of the car on wheels/tires alone? :lol:
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[quote name='mmanus88']i'm sure they are worth it. it sucks how the most fitting design by individual choice always has to be one of the most expensive :( but i decided not cut any corners, this is my first car and the only one my dad will ever pay for :lol:[/QUOTE] Lucky you! My first newcar was an '87 Ford Escort GT.....cool for the time but kinda funny to think we thought it was cool back in the day.
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[quote name='rkkwan']maosta - No, it will not, when you use 4 tires the same size.[/QUOTE] Of the same brand and the same type. The AWD system can tell the difference in tread pattern design when it comes to the rain and such.. not to mention the compound type.. try not to put two different types of tires on the car (even if they are the same size).. not all tires are made the same size PHYSICALLY. Use 4 tires of the same brand, type, and size and you'll be ok. Keefe
Keefe
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[quote name='B4GT']When you guys upgrade to 18' wheels, do you find the ride quality to hurt even more? I find the ride on the stock 17' wheels t o be already pretty harsh. The cabin rattles when it goes over bumps. Do you find your cars to rattle even more when going with bigger wheels? I can't imagine how bad it would be with bigger wheels.[/QUOTE] Nope.. (and I am talking from a lowered car standpoint here). Actually, I go with larger tires so that I can come closer to matching the specs of the stock sidewall (if not, add more to it). I give people lots of rides in my car (especially autocrossing) and they are amazed of how smooth my car is AFTER the tire/wheel and suspension upgrade. Keefe
Keefe
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[quote name='WRX_LGT']does the Legacy and WRX have the same bolt pattern?[/QUOTE] Yes - WRX'es and LGT's use 5x100. The only exception is a 2005 WRX Sti - it went to a different pattern. Also.....the other concern one would need to have would be brake clearance - LGT's and STI can't use less than a 17" wheel due to the size of their brakes.
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