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[Lester]

There seems to be no choices available in Ultra High Performance All Seasons for the rear that are 35 profile. Would changing to 245/40ZR18 affect any performance attributes? According to an online tire size calculator, the difference would be just under 4% on the speedo which would more or less bring it back to reading correctly.

The overall diameter would increase by an inch, so I don't think there would be any clearance problems. Has anyone got any theories to share?

It doesn't snow enough here to use winter tires, and I would be happy with a good performing all season tire year around. I'm looking at the AVID W4s (Yokohama) and Pirelli PZero Nero M&S.

[Gray135i]

I'd go with 255/35-18's in the rear. They fit well, are about the same height as stock and gets you even more rubber under the rear. I'm running the Yokohama Advan S4's right now which I am very impressed with for an all season. They're rated better than the W4's across the board on Tire Rack's website too.

[Lester]

Thanks, so the extra width is ok - no rubbing?

[Gary@TireRack]

Originally Posted by Lester

Thanks, so the extra width is ok - no rubbing?

No rubbing at all, I'm using that size also.

Gill

[mikeo]

I currently have 245x40-18 Dunlop Star Spes on the rear and I get a small amount of rubbing on the fender liner at full suspension compression. Not really a problem but people should know. Tire is just a tiny bit too tall.

[NY SLC 93]

I'd go with a dedicated set of winter tires. AS tires suck in the snow (especially on a RWD car) and suck in the dry.

[mikeo]

Originally Posted by NY SLC 93

I'd go with a dedicated set of winter tires. AS tires suck in the snow (especially on a RWD car) and suck in the dry.

Right, I call them "no-seasons".

[vanbmw]

LESTER...A friend has a BMW330CI and he tried a set of high performance all season's in Vancouver (I THINK he had Yokohama AVIDS). He said the first year he did okay in snow but not great. The next year he said his tires had about 60% tread left and his car was not driveable. It wasn't like he tried to head up skiing...just trying to drive to/from work. Also...he said they were not bad too bad in the dry but a notable step below his stock summer tires. I got a set of snow's from Gill @tirerack myself!

[adc]

My Pirelli PZero Nero M+S were fine last year in the snow, they got me home and up the driveway. We'll see this year.

Other than that, they were an improvement across the board over the Bridgestones runflats. Truly across the board.


The only thing they didn't like (and I have no idea how the OEM's would have) was driving in the rain on track at Watkins Glen. Acceleration, braking and cornering were fine on their own, but any combination of two would throw the tires off.

On my next car (hopefully a 135i) I'll put UHP all seasons in +1 size on the stock rims and get a set of max perf tires on a set of LTW rims. MD winters are just not that harsh.