rsworden

are there other sizes i can safely run on the stock rims? For 265/40/17 there are so few choices. But if i go to 255 or 275, there are a lot more choices. Same issue for the rear. Thoughts about this? Thanks all.

racebum

people have done various things

the nitto nt05 in 295 35 18 and 275 40 17 is one combo

the hankook rs3 in 285 35 18 and 255 40 17 is another

MY03C5Z

Some guys run 255's up front and say they fit well. I'm running NT05's in 275/40/17's they fit and handle great, run stock size in the rear. Some people also run 285's, 305's or 315's in the rear.

Quickshift_C5

I've run several different tires in 275/40/17 sizes up front and 305/35/18 rear. All of them have fit well with one exception. The Toyo R888 tires are actually manufactured one size wider than most other manufacturers. So, the 275 front and 305 rear are a little wide on the OEM wheels. They still fit great and wear appropriately, but wide enough that they sit outside the fenders about 1/8" or so. They really are a 285 and 315 size tire.

Walshdaw

currently have 275/40 and 295/35 Conti DWs and they are great.

Paul 75 L82

I have 315's in the rear and stock on the fronts.

mwestc5

I went a different route.
I've got a C5 Z06 for the track (although I do drive it on the streets too) and I've got a C5 convertible for the street. I went to 18" all around on both cars. I think having same sizes all around reduces overall cost by being able to rotate my tires all around and not having to dick around with different sizes front & rear. I went to 295 x 35 x 18's on both cars. Running sames wheels and tires on both sort of makes my street car a back up tire car for my track car. Plus this way gives me more flexibility of rotating tires between the 2 cars.

Not sure if this helps you any. I was never a fan of staggered tire sizes on any of my cars. I own Nissan Z, Porsche, just sold my v8 Miata(mistake selling it). Had 4 square set ups on all these cars.

mykream

I wanted to put an nt05r on the rear wheel on my c5z. I ended up putting a 285/40/18 on mine. Fits great, height works out well.

racebum

why did you want to gear higher? 295 35 18 is produced

mykream

Only the NT05.

The closest NT05R is 285/40/18.

Measuring it against the stock 295/35 that was on the car, it was maybe 3/8-1/2" taller. And that was mainly due to treadwear.

racebum

ah, i missed the R in your first post.

aaronc7

Maxxis posted on facebook new sizes for 2017. 255/40/17 285/35/18 should be available soon in VR-1....maybe a good RS3 alternative, depending on price.

mwestc5

Was looking to get as much tread on the road surface as possible without modifying anything or rubbing anywhere

2TONE82

Just did my annual removal for cleaning and inspection on my Z16; GY Eagle F1 GS-D3s...they are nearing end of life as rubber is getting hard but wear is holding great. Have about 20K miles on them over 5 years...wish I could drive her more! Running 295/35ZR18 rears and 275/40ZR17 fronts. Few options even back then when I replaced the OEM. Happy with the D3s but always follow these threads...I'm one flat away from having to replace at all four corners!

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Z06 Zephyr

I run 275/35/18 front and 295/35/18 rear.
On stock wheels you can run a 275/40/17 front perfectly fine.

gbrtng

The 275/40s were no longer available, so I opted for 255/40s today ... we'll see how that works out. 295/35s are available now. I have DWs on my 91 ZR-1 and am really pleased with them.

I recently bought a 04 Z16 with 18k miles from the original owner ... original tires too and they break loose at 50 MPH in second ... they gotta go.

C5Luv'R

I run a set of General Exclaim UHP on my car since 2009: 275/40R17 front and 295/35R18 rear. My experience is:

• More grip on turn-in
• Less steering precision
• Front tires stick out of the wheel wells by about 1/8"

My tires will need replaced by the end of next summer. Considering the limited tires available in the OE sizes, I'll have to access my options at that time.

racebum

best street option is 19/18

if you stay OE the pickins get more slim every year. the nt05 was a go-to but they have been hard to find this past year. i have read more than one post talking about waits

C5Luv'R

I am leaning toward the Michelin Super Sport tires. However, I will access when I need them.

MX621

I will most likely go with the rs3's come spring. I have found they run pretty wide. The 255/40/17 is actually almost identical width of the 275/40/17 nt05. And the 285/35/18 rs3 is actually a few mm wider then the 295/35/18 nt05.