Tyres and tramlining
Posted by: Bruce Woodhouse on 12 July 2007
One for technical auto forum perhaps but i know a few lurk here with lots of knowledge.
My Audi A4 (2WD) has always tramlined a bit more than I like. It has fairly wide/low tyres (Continental SportContact 235/40). Various articles suggest that (at least in part) it can be due to tyres with stiff sidewalls. Can anyone suggest which brand/model of tyre might improve things a bit? I don't mind a slightly softer tyre overall in terms of ride quality and accept losing a bit of handling bite if this is also the upshot.
Choosing a tyre seems much harder than most consumer choices, I cannot really find much in the way of independent reviews and tests that actually tell me what I want to know.
My local garage suggested Dunlop Sport and Pirelli PzeroRosso as options purely on the basis that he had them in stock!
Bruce
Posted on: 12 July 2007 by BigH47
The lower the profile the "relative" increase in wall stiffness. 40 profile is pretty low and I suspect that all those size tyres will behave similarly.
You could see if the tyre shop would give you a weeks "home demo" on the various choices so that you could make up your mind.
You can always tell him that the local NAIM dealer will do this.
Howard
Posted on: 12 July 2007 by Rockingdoc
It is arduous sorting the wheat from the chaff, but the owners' forums often contain lots of real experience of different tyres on a given car. I don't have an A4, but found the Evo owners' forum very helpful on the topic when choosing tyre characteristics that car.
Posted on: 12 July 2007 by manicatel
Bruce, I agree with Howard. I don't think any particular brand of tyre will be significantly better/worse than any other of the same size & profile. Tramlining is largely a characteristic of the size & profile of the tyre, so with the exception of getting the tracking accurately checked & set up, it may just be a case of getting used to it.
Matt.
Posted on: 15 July 2007 by Bruce Woodhouse
Well FWIW new Pirelli Pzero Rosso's have totally eliminated tramlining. Same profile and pressures etc so unless the tyre fitter also booted the tracking into a new configuration the tyres were significantly to blame. The ride is better with the new tyres too. The Conti's tramlined from new so not just a 'new tyre effect'.
Bruce.
Posted on: 16 July 2007 by steve watts
Bruce,
Thanks for posting this info.
I’ve just done 12,000 in my similar spec A4 (but with 4WD), and the bone hard ride/tramlining is the biggest complaint so far. I have Michelin 235/40 tyres and was about to check if a higher profile could be fitted to ease the ride situation.
The fronts are starting to show signs of wear and tear, and it won’t be long before I will have to switch them to the rear. After that, I will certainly check out the Pirellis.
Posted on: 16 July 2007 by i am simon 2
Steve
I do not think you can fit a higher profile, unless you change your wheels as well, as a higher profile would mean the circumfrance of the tyre is larger, therfore your speedometer would be wrong, as would the gearing of the car (it woul go faster but accelerate less).
Simon
Posted on: 16 July 2007 by yeti.fro
Saying that tyres have no influence on tramlining is like "All CD-Players sound the same, because it´s digital."
The Conti Sportcontact is probably the most sporty tire, giving the best turn performance Only downside is the tramlining, which many people are complaining of.
We have very good experience with Pirelli Zero and Goodyear F1. Both are more comfortable than the Conti and are more resistant against tramlines, but still perform well in other aspects.
brgds..TC
Posted on: 16 July 2007 by steve watts
Simon,
I'm sure you're right.
Just a bit of frustration with what is otherwise an enjoyable car. Still, it's good news that the Pirellis might improve things and I'll definately look at them when the time for replacement is due.
Posted on: 16 July 2007 by andy c
Ok, I have extensive experience of various tyres on various vehicles professionally

,
and i always settle on 'intermediates' i.. Pirelli's - they are not as hard wearing as Mitchelins, but i find them slightly more grippy in all surfaces. i have never got on with Dunlops. My C200 has the merc sport rims fitted, and I changed from \Mitchelin to Pirelli's, and have not regretted it.
I'd also strongly suggest you play with the pressures - some folk have too much air, when they are not carrying towards the top-end of the vehicles expected weight, which makes for a hard ride.
All the above is in my personal humble experience, and meant as a guide only, of course!
Posted on: 17 July 2007 by Bruce Woodhouse
Thanks for those comments Andy.
I did actually fiddle with pressures beforehand but it made little difference within a sensible range
I'm not especially concerned about faster wear with the Pirellis since I drive everywhere extremely slowly, in fact the car has never done more than 69.999 mph anywhere in the UK.

Bruce
Posted on: 17 July 2007 by andy c
Bruce,
Michelins are hard tyres anyway, due to their construction, so faffing with pressures on those will porbably not yield as much diff as, say, Pirelli's, which are a softer tyre...
Posted on: 17 July 2007 by Huwge
Bruce,
I have the Conti tyres at 235 / 45 on my quattro A4 and don't really notice the tramlining. It might be the difference in weight that the 4WD system brings.
I would have thought I would have noticed, especially when transitioning from winter to summer tyres. At my local showroom they recommend the Pirelli as a fair weather tyre only, but then we are obliged to have proper winter equipment here.
Huw
Posted on: 20 July 2007 by Roy Donaldson
You may find more information in here:
http://www.audi-sport.net/vb/forumhome.phpthough whenever I've looked for info on tyres/brakes there have been numerous confilting opinions.
Just stayed on a set of Michelins on my S3.
Roy.