portable pump
This is another rookie question by me. I recently got a portable pump to put on my bike. Last night, I decided to try it out to see how it works, but soon as i stuck the tip to the hole, all it did was deflate my tire. I couldn't pump any air in no matter how hard I put it in. Am I forgetting how to do something? I don't see how it is so hard to pump the air into my bike.