It is the liner, maybe I'm not being clear. The liner was to long so part of it was double thick. Where the double thick part ends it leaves a very clear inprint on the tube in the rounded shape of the end of the liner. The part where it's double thick pushes the tube down farther than these rest. Maybe the liner is just to thick to use with the PSI that high. I've used these before on different bikes and never had this problem.