Originally Posted by
Marcus_Ti
It is your pump's way of telling you that you need larger tires. Seriously.
But I love my skinny, minimalist tires! Seriously, I hear ya. I also need a Schraeder adapter screwed onto my Presta valves, so the process is fairly involved. The last time I tried to inflate without using the adapter, the valve core snapped off. Way too fragile a design, IMO.