Changing a tire requires just a few more steps than replacing an inner tube.
- Perform steps 1 through 12 of the “Replacing an Inner Tube” procedure in the previous section. The original tire will be half off the rim.
- Insert the broad end of one of the tire spoons across the rim and underneath the part of the tire that is still on the rim.
- Insert the second tire spoon the same way, about 4 inches (102 mm) from the first.
- Rotate the tire spoon handles down toward the center of the wheel to pry the tire from the rim.
- Repeat step 3 and 4 as needed until you have pried the tire entirely off the rim.
- Using the tire spoons, push one side of the new tire onto the rim.
- Inflate with a small amount of air so tube loosely holds shape. Insert the new or patched inner tube into the tire. Push the valve stem through the stem hole in the rim. Make sure the inner tube is not twisted. Make sure no part of the inner tube sticks out from the tire.
- Push the tire back onto the rim. Use a tire spoon to push the last part of the tire into place. Be careful not to pinch the inner tube with the tire spoon and cause a leak.
- Rotate the tire on the rim as needed so the valve stem extends straight from the rim, not at an angle.
- Replace the nut on the valve stem, and tighten the nut using a 10 mm open-end wrench. (Figure 6)
Figure 6: Valve Stem Position
- Inflate the tire to the proper pressure, which is 52.5-57.5 PSI (362-396 Kilopascals).
- Replace the valve stem cover.
- After replacing the inner tube and tire, manually move the product forward and backward. Make sure the tires roll smoothly.