Bike Care and routine bike maintenance tips - How to Change a Bike Tire Tube
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Jeff: Hi my name is Jeff, I am working with Revolution Cycles as a mechanic. I am going to show you how to change bike tube today. So this is going to be useful to know when ever you get flat on the path, the first step is you have to have the right tube. Tubes size comes in a variety of in a huge range so you need to know what size tag you have and also what size about. For this particular tire it's a 700 by 32 CU tire with a straighter valve, explanation of what that looks like on box will be 700 C wheel size and also the tire width which is at 32. So this one says 28 by 32 which is the rims that I am looking for. Also it has a straighter valve which is the larger type of valve that you see mostly on cars and on hybrid and non-bikes. The information on what tube size you need will be located on side wall of your tire.
So right here it says 700 by 32 and that's the corresponding size with this two. Once you have got your tube, and you have got your flat tire you also need a set of tire levers. So once you have got your tire levers you will use that's as a beat of the rim. Use spoon side as it is called. And you basically grab on to the edge of the rim and work your way laterally to pull the beat off. And so you can work it all the way round the rim and then you do the same thing on the same side but for the other side of the wheel and just peel that off. Like so.
So once you got the tire of the rim, you want to check it for the any kinds of foreign objects or pieces of glasses that might be inside the rim. Be careful not to cut your hands on these pieces as they can be sharp. So for this exercise I will be wearing a pair of gloves when you have on the trail and you have a flat and you can also put a part of your jersey or sock so check the inside of the tire. You can do a visual inspection and also use your fingers to run on the inside of the tire. Is like so. As you checked that there are foreign objects you are ready to instal your next tube and I am going ahead and show you how to do that.
First you want to instal the first beat of the tire and by doing that you will hook this tire along the rim and then use the tire lever once again on the spoon side to install the two. So you will be doing the opposite action instead will be hooking the ring and lifting upwards to install the bead just like so. So once you got the first beat on and go ahead and open up that too.
So once you got the tube you are going to find the valve hole go ahead and install that there and then continue to put the tube in, you want to make sure that you are not putting any twist or -- in the tube as they will eventually pinch once you inflate the tire just work it way around the rim. Once you have got the tube fully around the rim you are going to install the second bead and for the you just working your way around using the heel of your hands and push the beat on and then it will eventually will come to a point where you won't be able to use your hands anymore and then that's when you will be using the levers again.
So once you got to this point where there is just a slight amount of bead showing that's when you use the lever again on the spoon side you are going to hook the rim and lift upwards and push the bead on to the rim. Once you have got that in, your double checks make sure that the bead is fully seated and by doing the you can actually look at the lining of the side wall and there will be a mark and you want to make sure that the mark is evenly set around the rim on both sides if you don't do that and once you inflate the tire the two might actually pop out and you will get another flat.