Tyre setup

This has probably been talked about before but thought I’d add my 2 pence worth in :)

Initially car came with Bridgestone Potenza RF. I found that tyre had good grip (at high and low speed) and very good breaking distance. But they did give a very hard feel to the car (going over pot holes felt like I was hitting the curbs) and also found them a bit noisy. I changed to Goodyear Eagle F1 RF (@ 22000 miles). This was a much softer (but not too soft) tyre and gave very good feedback. I also found them have marginally better breaking distance in the wet then Potenza's (so excellent). However, at high speeds, I found them to be a bit unstable. Didn’t give the same confidence as the Potenza's did at high speed.

My current setup is:
Front: Goodyear Eagle F1 running at 34psi
Rear: Bridgestone Potenza running at 40psi

This seems to have cured the high speed stability and also the harder ride of the Potenza's. I have been running with this setup for about 6 weeks now and I feel much more confident in corners and the general ride of the car
 
Im running Goodyears Eagle F1 A2 in non RFT's high speed stability is very good, in fact everything is better than the Bridgestone's even though I have gone from 17" to 18" wheels. Perhaps the problem you have is tram-lining, giving the feeling of instability?
 
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