PANCHO HERRERA: Hi, this is Pancho Herrera out on a bike ride and it looks like I've gotten a flat tire. So I'd best set about fixing that. I'm going to remove the bike wheel from the frame or fork. Naturally, since I'm a prepared cyclist, I've brought along all the necessary goods: a pump and my flat-fixing gear. So let's see, we got a pump, I'm carrying a mini tool. I'm carrying a patch kit and I'm carrying a tire lever, all the essentials. Last but not least, I'm going to go to my bicycle and fetch a spare tube. Most experienced cyclist will agree that it's much easier to carry a spare tube that you know is intact, rather than patching on the side of the road, but it is a smart idea to carry a patch kit just in case you might get multiple flats on a ride. I'm going to set about using my tire lever to remove the tire from the rim. If you lever that tire lever under the bead of the tire, and start working your way around, you can remove one side of the tire from the bead of the rim. Next step, let's take that bad tube out of there. Let's always inspect our tire after we've encountered a flat. Let's make sure we've removed any debris that might be in there. There might be a thorn or a piece of glass if you're out on the road. We want to make sure that's not in there, ready to flat your new tube when it goes back in. Now, we'll set about installing the new tube. Step one is to open the valve up and give this tube a little bit of body. Put a little air in it. It's going to make your job a lot easier, just enough to give it some squish. Now, I've cleaned my tire. Make sure there's no foreign matter in there, nothing that caused the flat, ready to cause your next flat. We're going to start with the valve hole, want to insert that first and then we're going to work our way around inserting the tube into the tire, making sure it's well-clear of the rim all the way around. Again, starting at our valve hole, let's squeeze the other side of the bead back in place. Now, we want to visually inspect it all the way around and make sure that this tire is seated correctly. We want to make sure that this valve is free to move around. It's not being pinched under the tire bead and nice and loose in there. Now we can begin the inflation. Close the valve, reinstall the Presta Valve Nut, looks pretty good. Time to put the wheel back on the bike.
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