No issues with my rear tire and I run 40/41 lbs in it always..Have run 39/40 in front since day one and got really tired of the "bouncy" harsh ride from the front forks/tires...Lowered the pressure to 37 in the front and man what a difference!!!....Anyway, no more high pressures for me, going to run close to what the owners manual says....36 front, 41 rear....Ride safe