Originally Posted by
bicyclebill1
OK. I am officially an idiot. It tried this morning all methods listed above, both schrader with adapter, and presta without adapter. I could get no air to go in or come out, and I have no idea what my tire pressure is. These are 100 psi max tires, so maybe I am not pushing hard enough on the pump (dont' think so).
I guess I will have to go by a bike shop and get them to show me the ropes. **********????