gingertosser
Active member
https://youtu.be/uR_7wkFXJB4
A vid of a guy fixing his tramlining issues
A vid of a guy fixing his tramlining issues
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Tramlining cure
- Thread starter gingertosser
- Start date
Upping the pressure from 26 all round will have helped on its own :lol:
Jamesgofast
Member
I went for my first spirited drive after having Bridgestone run flats that were on the car when I bought it replaced with PS5s. Vastly improved the tramlining to the point of not even noticing it on the drive. Eliminated completely, hard to say, but I certainly experienced a noticeable difference in handling and control. 
Apart from choosing cheap Chinese ditchfinders, I reckon Bridgestone Potenza runflats are quite possibly the worst tyres to fit on a zed. Having said that, I also think runflats are given a bad press (especially on this forum due to experiences with the OEM Bridgstones). I've recent experience of runflats on a Mini Cooper (Kumho), Cooper S (Pirelli), Mercedes GLA (Goodyear) without any issues - not even on a 2.5 E85 that was swapped to Hankook runflats earlier this year.
So he fixed his issues by getting the wheel alignment done and getting his flat tyres pumped up? This is something that everyone should be doing regularly. Well the tyres part. Alignment should also be checked and adjusted every couple of years or after major suspension refreshes
When the Z4 was launched no one mentioned poor handling or tram lining due to the run flats. Interestingly though the M was fairly heavily criticised for its poor ride quality but they didn’t actually come on run flats!
So, my deduction is that over time something wears in the suspension that causes the problem. Probably rear trailing arm bushes as they are not easy to change
So, my deduction is that over time something wears in the suspension that causes the problem. Probably rear trailing arm bushes as they are not easy to change
