Need Tire Advice

[Janusz1]

Hi guys;

I have RUF wheels 17' 9 & 10 wide with BFG GForce T/A 245/40 and 275/40.
The front tires are worn out and need to be replaced but rears are still very good (6k miles).

GForce T/A are discontinued so I cannot just get new fronts to match. My only choices are to get all four new tires (I like Conti Extremecontact Sport; is it a good choice?) or just buy new fronts now and drive like that for a while until the rears become used up or I will feel the handling is unacceptable. Then I will get new Conti rears and all is good.

I hate to throw out rear tires in such good shape. I know that mismatching tires front to rear is not the best practice but if I like the result will it be stupid and dangerous?

Please help with an advice.

[Noah930]

I've done that before--mismatched fronts and rears. I tried to at least get tires in the same general categories, at least. But I figure we've already got staggered tires front and rear, so the car is never going to be "all-even" at all 4 corners. Just keep that in mind when driving in spirited fashion.

[spuggy]

My $0.02? A lot depends on the car spec, where/how you drive, conditions you intend to drive in/might get caught out by etc.

I've taken the car out in the AM on a bright, beautiful day only to end up driving a 3DLZ-equipped car back on greasy country lanes through freezing slush while it was actively snowing/getting dark - all while sporting Kumho Hi-Perf summer rubber. They were fresh - so less drama than you might expect (if you drive like there's eggs on the pedals). But that was still a little tense...

For high-perf rubber, age/hardening is a significant factor. Over the years, I noticed that all my sets of summer tires got progressively worse until they were really greasy/sliding about/pushing everywhere in cold-ish (40 or less)/damp conditions - we call that "fall" here - after 3 years.

Which nicely happened to coincide with "put the WinterContacts on" and I'd just get a new set of matched summer rubber in the spring.

A quick Google shows folks asking "what happened to GForce T/A" in early 2015. If those tires are 4 years old, I'd regard them as boat bumpers, regardless of mileage. If you intend to drive in cold or wet conditions or might get caught in them.

Dry/hot climate, not so much I guess. I find I'm happier if the back isn't loose, though. Personally, I'd replace rubber in sets on the 911 or a motorcycle.

I've really liked all of Kumho Ecsta, Direzza Z1 Star Spec and my current summer fave, Falkan RT615K+. Unfortunately for you widebody guys, I don't think a single one of those was ever offered in 275 or wider rear fitment (I run 225/45 & 255/40 on my SC-body with Rufs).

Main thing stopping me doing the work to fit my 10J Speedlines to the rear - tire selection. It's a vicious cycle - as fewer folks buy that size, the number of available options will only get smaller over time....

I don't think you can go far wrong with Continentals on a 911 though. I loved the WinterContacts; they drove like regular hi-perf tires that just kept working in adverse conditions. Much nicer than Blizzaks - those wear like iron or they'd already be history...

[kevinbodman930]

I had the Continental Ext on my 930 and loved them.I was in the same boat as my tires were dated 07 although they looked good they were going to kill me.Do yourself a favor and get a full set if u can.

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