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Let all the air out from the tube of the wheel having the replacement.
Remove the wheel as described in detail in the previous sections.
Remove the inner tubes air valve cover.
Pull back the tire bead away from the rim. You will see the tube and the inside of the tire. If it requires
too high pressure to pull back the tire bead, there may be still air in the tube. Check to confirm all the
air is out of the tube.
Using the tire lever from your tool set, insert one tire lever end in between the tire bead and the rim but
make sure the tire lever is on top of the tube and you are not pinching the tube.
Slide the second tire lever about 4-6 inches to the side of the first lever. Be sure not to pinch the tube
and to confirm you have the lever on top of the tube and not under the tube. Slide the lever down the
side of the wheel between the tire bead and rim edge while lifting the tire bead and sidewall over the
rim edge.
If removing only the tube, you can now pull the tube outside the side of the tire wall. If replacing the
tube, you can now install the new tube.
If removing the tire, use the tire levers and repeat the previous steps and remove the opposite side of
the tire’s sidewall bead on the same side of the rim you removed the first tire bead. The tire may easily
come off the rim if you pull the tire bead over the edge of the rim and the tire levers may not have to be
used.
To install a new tire, follow these instructions:
When installing a new tire you should first insert the tube into the tire. The tube should have been
partially inflated to a soft but full feel removing any wrinkles in the tube.
Check the mounting side of the rim and confirm the directional path of the tire. High performance tires
are usually directional tires and the arrow on the sidewall represents the rotation of the tire.
Place the valve of the tube into the valve hole of the rim and slide the bead of the tire over the edge of
the rim.
Push the one side wall and bead of the tire around the edge of the wheel’s rim. The tire will slide into
place and may become tight as you finish.
Once one side of the tire is inserted in the rim, check to make sure the valve stem lines up properly and
the tube is smooth across the rim and inside of tire. The tube should not be bunched up in any area.
Where the tube valve is, slide the second wall and bead of the tire into the edge of time rim. Follow
pushing the tire wall and bead into the inside edge of the rim.
You will get to an area of only a few inches left and you will need to apply pressure to push the tire side
wall and bead behind the edge of the rim.
Once the tire is fully inserted, check for any areas on both sides if the tube is exposed. The tube must
not get trapped between the tire bead and rim edge.
Locate the tube valve and use your hand to push on the tire on the outside of the valve to help push the
valve further out through the rim.
Fill the tube with 50% air and then check the tire bead and rim edge again to see if the tube is
protruding anywhere. Once you confirm the tube is not protruding, you can fill the tire to your desired
air pressure.
You are now ready to install the wheel back onto the bicycle according to the previous sections.
Summary of Contents for G Plus Mariner 7
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