NFB Tire Question

[Joe K. 99 Zeee!!]

Measured the tread depth for the Grand Prix tires today.

Front: 3/32 [correction]
Back: 8/32

I suppose I shouldn't be surprised. The previous owner obviously never rotated them. So I need two new tires.

I'd like to get Pirelli PZero Nero M+S. I think they're on sale at Tirerack. Any impressions on these? Also, what do you all think of running 2 MXEnergy & 2 of the Pirellis at the same time?

Stock Size: 225/55R17
Pirelli: 235/55R17

Speedo would be off 1.6%, but the tires are cheap at $76 each. I may put the MXEnergy's up front to correct this.

[ConElite]

Speedo would be off 1.6%

Why Would the Speedo be off? Its the same Size tire just a tad wider no?

[Steel2686]

I would think the speedo should be fine as long as you aren't changing the diameter of the tire.

[Jeff_in_Atl]

The height would change. The first number is the width and the second number is the percentage that the height is of the width. For example, a 500/50R15 (500*.5=250) would be twice as tall as a 250/50R15 (250*.5=125).

edit add http://www.tirerack.com/tires/tirete....jsp?techid=46

[ConElite]

The height would change. The first number is the width and the second number is the percentage that the height is of the width. For example, a 500/50R15 (500*.5=250) would be twice as tall as a 250/50R15 (250*.5=125).

Really, Interesting. I never knew that one. No wonder when I upgraded from a 245/55r16 over to a 255/55zr16 the car sat higher. Thanks for taht one Jeff.

[Joe K. 99 Zeee!!]

Here's the tire:

http://www.tirerack.com/tires/tires....ero+Nero+M%26S

[wolfdogs]

Stock Size: 225/55R17 rolling diameter 26.77"
Pirelli: 235/55R17 rolling diameter 27.17

so as you can see, the new tire will only be .40" taller. you can live with that easy.

[bn_bullet]

Joe,

I have the Pirelli P-Zero Nero tires mounted on my wife's Taurus SHO and really like them. They handle very well in both wet and dry conditions and are extremely quiet. I have had them for about 1 year and they are wearing great. I think you would be happy with them.

Brian

[Joe K. 99 Zeee!!]

Thanks all...I went ahead and got 4 since it's rare to see a tire like this for $76.