Quote Originally Posted by Strat Fan View Post
Michelin TB15 215/55/15's have a nice big compliant side wall which shouldn't cause any issues. At the temperatures you are running on the road then I doubt the tyres can really be classed as sticky. Guy runs a wider squarer front tyre which should yield more issues than yours.
Have you actually taken the time to remove the damper & check the bump steer? You have mentioned a number of times that you have altered the front castor. Are you aware that each time you alter the castor you should then double check the bump steer as castor adjustment alters the relationship between the steering arm & the steering rack which in turn provokes bump steer. About 4 pages ago we covered the subject of twitchyness & the subject of bump steer was raised. If you are now happy with your ride height, toe settings & tyre pressures then can I suggest you actually check the bump steer before buying new tyres to replace the ones that plenty of others here run with out issue.
Craig

The old hands at GBH Motorsport (and incidentally Longstone) classed these tb15s as sticky and Bob at GBH road tested the car and said the twitchiness was down to the profile and compound of the front tyre which I beleive is correct. For avoidance of doubt the twitchiness is felt on a notmally smooth tarmac no bumps. I have driven the car puposefully over uneven road surfaces and apart from tram lining there is no apparrant bump steer. I still wish I could find normal compound tyres to fit.....

Tim

Ps in case you were wwondering GBH stands for Geoff Bob and Herindoors....