quoted from http://www.bimmerfest.com/forums/showthread.php?t=15358
(The propensity that a car has for tramlining depends on its suspension geometry and the amount of feedback that the designers have built into the steering. Aspects like scrub radius, castor, camber and so on.)
So when I found that the insides of the Kumhos were badly worn - probably as a result of the large amount of toe-in being run in a vain attempt to reduce the tramlining - I needed to make a decision. What good tyres could I buy for the front of the Audi that would very substantially decrease the horrible tramlining?
I started off thinking expensive tyres - Bridgestone S02, that kind of thing. But for tyres of that standard we're talking about a helluva lot of money - especially if the tramlining remained just as bad! What would I say - "Sorry Mr Tyre Retailer, I don't like these and I'd like my money back." Yeah, right. But what if the dealer was aware of the problem before I bought the tyres? Perhaps we could work something out before hand? I rang a tyre retailer and told him that my car really liked tramlining - and what was his suggestion for tyres that would fix this?
"Yair well, you need a tyre that's not directional," he said.
"Right - why is that?" I asked.
"Well, directional tyres have really coarse tread that grips right into the road," he replied.
'Er - but what's the directionality got to do with it? Haven't some non-directional tyres also got a coarse tread?" I asked.
And I didn't get a satisfactory reply to that.
END QUOTE
Based on Mr Google answer, Goodyear F1 don't give tramline problem... Might be related to directional thead but not v shape design.
Conclusion:
Always do alignment
(The propensity that a car has for tramlining depends on its suspension geometry and the amount of feedback that the designers have built into the steering. Aspects like scrub radius, castor, camber and so on.)
So when I found that the insides of the Kumhos were badly worn - probably as a result of the large amount of toe-in being run in a vain attempt to reduce the tramlining - I needed to make a decision. What good tyres could I buy for the front of the Audi that would very substantially decrease the horrible tramlining?
I started off thinking expensive tyres - Bridgestone S02, that kind of thing. But for tyres of that standard we're talking about a helluva lot of money - especially if the tramlining remained just as bad! What would I say - "Sorry Mr Tyre Retailer, I don't like these and I'd like my money back." Yeah, right. But what if the dealer was aware of the problem before I bought the tyres? Perhaps we could work something out before hand? I rang a tyre retailer and told him that my car really liked tramlining - and what was his suggestion for tyres that would fix this?
"Yair well, you need a tyre that's not directional," he said.
"Right - why is that?" I asked.
"Well, directional tyres have really coarse tread that grips right into the road," he replied.
'Er - but what's the directionality got to do with it? Haven't some non-directional tyres also got a coarse tread?" I asked.
And I didn't get a satisfactory reply to that.
END QUOTE
Based on Mr Google answer, Goodyear F1 don't give tramline problem... Might be related to directional thead but not v shape design.
Conclusion:
Always do alignment
