Looks good?

theres a few sets for sale in the states on ebay.com but the shipping would be a killer....
 
Aren't these wheels very thin? They BRZ's were deliberately given a narrow wheel to make the back end move around..might not suit AWD..could be wrong maybe they are just narrow compared with other modern cars
 
The weight rating would need to be 600kg per wheel as on Impreza for example.
Think Dave is right about narrower wheel 17" x 7" You could get the TRD upgraded ones which are 18".
 
yeah i really think you should sell your current and persue a set of these :icon_biggrin: :icon_biggrin:
 
Altezza-Dan said:
they are 17 x 7, if you could get away with a 225 tyre on it, it should be ok

I think min width for 225 is 7.5...even at that you would get a lot of flex in the side wall I would guess
 
Some good sizing info here:

6.5" (+34mm to +60mm offset, +55) *for 2.5i only
7.0" (+37mm to +57mm offset, +55)
7.5" (+40mm to +54mm offset, +55)
8.0" (+43mm to +51mm offset, +53)
8.5" (+45mm to +48mm offset, +45) *will need to roll the fenders if tires are wider than 255
9.0" (+43mm to +45mm offset, +43) *will need to roll the fenders if tires are wider than 255
9.5" (+38mm to +40mm offset, +38) *will need to roll the fenders if tires are wider than 255

and it also depends on what kind and size of tire you want to run as well (and that can get messy). But to be on the safe side, here is the tire widths you can put on each rim:

195mm = 6.5", 7" and 7.5"
205mm = 6.5", 7" and 7.5"
215mm = 6.5", 7", 7.5" and 8"
225mm = 7", 7.5", and 8"
235mm = 8", 8.5", and 9"
245mm = 8", 8.5", and 9"
255mm = 8.5", 9", and 9.5"
265mm = 8.5", 9", and 9.5"
275mm = 9" and 9.5"
285mm = 9" and 9.5"

Once you decide on the rim size, the tire width you want to run, here are your final tire choices. Note that not all tires are built the same way, so sometimes you'll find two different tire models with the same size (225/45/17), but one can fit on a 7" rim, while the other one will need a 7.5". You'll have to look around the manufacturers' specs on sectional width of the tire.. normally you want your rim width be no more than 1.5" less than the tire's sectional width. For example, if you have a 8" wide rim, your tire's sectional width shouldn't be more than 9.5" or you'll have to deal with the flex on the tire sidewalls. Most performance driving set ups are 1" difference (ie. a 8" wide rim with 9" wide tire). Below I listed for you by rim diameter of which I recommend running with some notes on each tire with notes to go along with them as well:

16 in. rims (for 2.5i, 2005-on) only:

195/60/16 (great for snow rally or snow use)
205/55/16 (OEM sizing which is also good for some non-tarmac surfaces)
215/55/16 (oversized for the rim protection, but very sloppy sidewall handling)
215/50/16 (wider footprint used for more daily driving without harsh gas consumption)
225/50/16 (great for autocrossing, still usable for daily driving all year round)


17 in. rims (for GTs 2005-on):

205/40/17 (only for SUPER FAST acceleration and torque; for autocrossing only, do not use for daily driving)
205/45/17 (only for FAST acceleration and torque; for autocrossing only , do not use for daily driving)
205/50/17 (good for snow rally)
215/45/17 (stock)
225/45/17 (good autocross performance tire size for gearing, more mph per gear)
235/40/17 (good autocross performance tire size for torque, more acceleration)
235/45/17 (tallest tire you could use under the GT due to possible suspension clearance issues, best used with an 8" wide wheel)
245/40/17 (good autocross performance tire size for traction, will need to have a flatter alignment to make use of the grip)
255/40/17 (maximum grip, good for track days, will need a 9" rim to make use of the contact patch and a good alignment as well).

18 in. rims (for GT 2005-on):

215/35/18 (only good for autocrossing use, do not use for daily driving)
225/35/18 (only good for autocrossing use, do not use for daily driving)
215/40/18 (uncommon tire size, close to OEM overall tire diameter, good for daily driving)
225/40/18 (typical sizing, most popular size, GREAT for daily driving)
235/40/18 (very large, but great for pot-hole city driving, may need fender rolling)
235/35/18 (rare size, but closest to OE tire sizing to keep the spedometer reading correctly)
245/35/18 (common autocross, performance size, very good for daily driving)
255/35/18 (very good daily driving size, even better on the track)
265/35/18 (very good daily driving use, but the car wont be able to use all 265mm of tread for the track)
275/30/18 (tallest tire you can mount without fender clearing issues on a 2" lowered car if you get the right offset)
285/30/18 (aka, the "STREETS OF DREAM" setup... the widest you can go.. this is the next tire size I am going for and a rim to match it)

18 in. rims (for Spec B.2006-on, 3.0Rs 2008-on):

225/40/18 (common tire to use and gives a better acceleration since it's 0.5" shorter)
235/40/18 (rare size to find, but near stock height for proper gearing)
245/40/18 (popular tire size for the larger cars)

19 in. rims (for GT 2005-on):

225/35/19 (common typical sizing for 19" for our cars)
235/35/19 (tallest tire you can mount without fender clearing issues on a 2" lowered car if you get the right offset)
245/30/19 (rare size, but also tallest tire you can mount without fender clearing issues on a 2" lowered car)

Use these at your own risk, but to my knowledge on a lowered car with a small-spring perch type coilover, it should work and ride fine. The most you'll probably have to do to the fenders is to just roll the lip of it in to give yourself another 5mm of clearance. I hope this helps.
 
:plusone: :plusone: :plusone:

Great post Dan, can you also tell me if you know the mathematical algorithm on how the wheel size affects speedometer?

Before I had 205/50/16 and my speedometer was showing 130kmh while I was according to GPS going 120kmh
Now I have 225/40/18 and my speedometer is +/- 1kmh different from GPS at 60kmh(didnt have chance yet to test on highway)

Also, are there some legal requirements to have your speedometer showing 5-10% more than real speed is, or is that just a rumour?
 
Zheiko said:
:plusone: :plusone: :plusone:

Great post Dan, can you also tell me if you know the mathematical algorithm on how the wheel size affects speedometer?

Before I had 205/50/16 and my speedometer was showing 130kmh while I was according to GPS going 120kmh
Now I have 225/40/18 and my speedometer is +/- 1kmh different from GPS at 60kmh(didnt have chance yet to test on highway)

Also, are there some legal requirements to have your speedometer showing 5-10% more than real speed is, or is that just a rumour?

No idea about any of that im afraid!
 
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