My Roadster is an early series 1 and, I am given to understand, these early cars had the track rod end above the stub axle arm for a short while. In that position I am told that bump steer is more likely as is shimmy. The suspension was untouched before the Suplex was fitted so, I suppose, it could have been wrongly fitted although I don't know how. That said, Tim Ayres tried various combinations of set ups, taking the Suplex on and off again twice before deciding it was much better off. He says he never usually fits it himself.
I have no specialist knowledge of car suspension, but I can say that the handling was very scarey with the Suplex.
John
