This foot pump is ok. I wish they would have put some big rubber feet on it, so it would not sink down in the dirt as much, when you have to use it on the trail. Also, if you are storing it in your rack bag on your quad or wherever you have it, check it after a weekend trip, because the nuts will vibrate loose, and then it will not function properly. When you go to put your foot on the pedal, it will bind up and not pump. I modified mine with some loctite on the nuts, and I keep it in a rubbermade container with a lid, so it will not open up in my rack bag. Also, if you keep it in the box it comes in, and that box gets just a little wet, it will disintegrate in your rack bag. All in all this pump is ok, I just think that if they are going to market it for people who use it on the trail, which is where most of us would use it, they should make a few changes to the design.