Введение
Biking is the ideal way of travelling for individuals who may not have their drivers license or don't have easy access to a car. The Supercycle Comp Hardtail Mountain Bike 21-Speed, 27.5-in is a beginner mountain bike that can also be used for regular use. After frequent use of a bike, the tires can develop wear and tear and eventually it must be replaced to use again. So the ability to change either a bike tire, tire tube or tire rim is an important skill to have or learn.
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Locate and disengage brake to get access to tire; this model has cantilever brakes.
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Squeeze the two handles together shown in the first picture and that should allow you to lift up the cable.
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The actions of squeezing and lifting should be done at the same time, as the cable is stuck in place if the handles aren't squeezed together.
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Use a 15mm torque wrench to loosen and remove the bolt and washer located on each side of the wheel.
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With the bolt and washer removed, lift the bike frame and separate the tire.
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Unscrew the valve cap, then deflate the tire by pressing down on the pin with your finger or a lever wedge, if necessary.
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Use a second lever wedge around 3 or 4 inches away, and it should now be easy enough to remove one side of the tire off the rim by hand.
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Lift and push on the tire so one side is off the rim and the tire tube is now exposed.
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Carefully guide the tire valve through the rim and remove the tire tube by pushing it through the tire rim.
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From left to right in the picture, nhow that the tire tube, rim and tire have been separated, replace any or all if necessary.
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Place the tire back on one side of the rim, making sure there is enough space to add the tire tube back.
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Insert the tire tube back into the tire by first aligning the valve with the valve hole in the rim.
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Push the tire tube valve gently through the hole in the tire rim, then push the rest of the tire tube between the tire and the rim.
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Replace the washer, and tighten bolt with the torque wrench to secure the wheel back to the tire frame on both sides.
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Reengage the brakes by squeezing the levers back together and placing the cable back into place.
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Follow the same steps with the back wheel if necessary. The bike is now ready to ride again!
Follow the same steps with the back wheel if necessary. The bike is now ready to ride again!