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Discussion Starter · #1 ·
the dealer I bought our GTR from said they had a deal with a local tire shop that had done previous installs on other GTrs that were sold at that dealer. The deal essentially includes a set of 4 Falken Tires installed and balanced for $1000. I understand they probably don't grip or ride like Dunlops or Bridgestones but my far is used for weekend cruises and the occasional streetlight or freeway race/fun. What do you guys think?
 

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Do you have any details as to which Falken tire they are providing? Falken makes some pretty decent street tires, but I think you will find they will not provide anywhere close to the same amount of grip as the OEM runflats. I think you will find the Dunlops or Bridgestones are a far better tire and worth the extra expense.
 

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Discussion Starter · #3 ·
Not sure I didn't ask because the sales guy that sold me car wasn't sure either. I will have to ask. I only use my car on the street and accassionally a street race or so. Do I really neednthe grippiest tire for this type of driving? Is it more likely that traction control will kick in in a launch?
 

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Even the OEM tires are not the grippiest. With the bridgestone's with very light modes you can spin them quite easily. It's really hard to say how good/bad the grip will be without knowing exactly which tire is in question. Feel free to PM me once you find out which tire and I can give you my honest opinion.
 

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I just looked on Falken's sight and they don't sell anything in OEM sizes, I also couldn't find a matching size that would work. I think your salesman is FOS.

http://www.falkentire.com/
 

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Discussion Starter · #7 ·
I just looked on Falken's sight and they don't sell anything in OEM sizes, I also couldn't find a matching size that would work. I think your salesman is FOS.

http://www.falkentire.com/
hmmm interesting...he said he had installed a set in a GTR he sold just prior to mine. (this is Not a Nissan dealer but rather a high end sports car dealership) I want to trust the guy because he was a straight shooter. I sent him an email..I will find out shortly
 

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Discussion Starter · #8 ·
According to Falken's website they don't have exact OEM replacements but they do have 255/40ZR20s and 285/35ZR20s. As long as the overall diameter matches will it work on our GTRs? I know the stability/traction control system is sensitive to overall diameter between front and rear
 

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According to Falken's website they don't have exact OEM replacements but they do have 255/40ZR20s and 285/35ZR20s. As long as the overall diameter matches will it work on our GTRs? I know the stability/traction control system is sensitive to overall diameter between front and rear
Where are you seeing 255/40/20's and 284/35/20's on there site? Bigger or smaller will work as long as it's the same front to back but like I said I'm not even seeing anything that will work on there site.
 

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Discussion Starter · #10 ·
Where are you seeing 255/40/20's and 284/35/20's on there site? Bigger or smaller will work as long as it's the same front to back but like I said I'm not even seeing anything that will work on there site.
On the left of the home page I scrolled down to "Tire Locator" and started punching in similar to OEM sizes until it showed tires available for 20" wheels.

FK 452 series tires were available at the sizes I stated above. Doesn't show tire height though to compare.
 

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Discussion Starter · #12 ·
My apologies....I was looking at the following set-up which was most similar:

255/35 20 front and 285/30 20 rear

This would be a 0.3 inch less diameter on the rear OR 7.62mm less. I think this is well within the tolerances allowed on the GTR.
 

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Stock Tire - 255/40R20 >Search Tires Tire 1 - 255/35R20 >Search Tires Section Width: 10.03 in 255 mm Section Width: 10.03 in 255 mm Rim Diameter: 20 in 508 mm Rim Diameter: 20 in 508 mm Rim Width Range: 8.5 - 10 in Rim Width Range: 8.5 - 10 in Overall Diameter: 28.03 in 711.96 mm Overall Diameter: 27.02 in 686.30 mm Sidewall Height: 4.01 in 101.85 mm Sidewall Height: 3.51 in 89.154 mm Radius: 14.01 in 355.85 mm Radius: 13.51 in 343.15 mm Circumference: 88.05 in 2236.4 mm Circumference: 84.88 in 2155.9 mm Revs per Mile: 742.0 Revs per Mile: 769.8 Actual Speed: 60 mph 100 km/h Speedometer1: 62.2 mph 103. km/h Speedometer Difference: - Speedometer Difference: 3.746% too fast Diameter Difference: -
Diameter Difference: 3.61%
Stock Tire - 285/35R20 >Search Tires Tire 1 - 285/30R20 >Search Tires Section Width: 11.22 in 285 mm Section Width: 11.22 in 285 mm Rim Diameter: 20 in 508 mm Rim Diameter: 20 in 508 mm Rim Width Range: Unrecognized tire size. Rim Width Range: 10 - 11 in Overall Diameter: 27.85 in 707.39 mm Overall Diameter: 26.73 in 678.94 mm Sidewall Height: 3.92 in 99.568 mm Sidewall Height: 3.36 in 85.344 mm Radius: 13.92 in 353.56 mm Radius: 13.36 in 339.34 mm Circumference: 87.49 in 2222.2 mm Circumference: 83.97 in 2132.8 mm Revs per Mile: 746.8 Revs per Mile: 778.1 Actual Speed: 60 mph 100 km/h Speedometer1: 62.5 mph 104. km/h Speedometer Difference: - Speedometer Difference: 4.191% too fast Diameter Difference: - Diameter Difference: 4.03%

Pretty drastic difference. My car is lowered 1" and the last thing I want is less ground clearance. I think those sizes would look kinda silly, especially if you're not lowered. IMHO
 

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FK 452 series tires.
Junk tires, IMO. They're way too hard & the car won't have the grip it needs--plus they'll howl when you drive in a spirited fashion.

But if all you do is drive straight down the road tooling around, they should suffice. YMMV...
 
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