'ning all. I just took my new bike (trek 1.7) out for a spin round a familiar route. Conditions were good, tyres pumped up to 100psi and everything felt great... ...until I got up a bit of speed. The bike felt "squirrelly" for want of a better description, almost like the tyres were a bit flat. The bike seemed to gently squirm whenever I put the slightest sideways force through them. It just didn't feel safe, as if the wheels were about to lose grip and fling me down. Tyres are Bontrager Race Lite (slicks) and wheelset is Bontrager SSR. Is it normal for new tyres to feel this way?