9 Remove the outer and inner tires
Note: Crowbars not included, and should be purchased separately.
1. Deflate the inner tire first. Use a tool to press the core rod in the air valve so that air is discharged from the
inner tire. Than, with another hand, forcibly pinch the tire at different places to release more air.
2. Select a position far from the air valve on the outer tire, use two crowbars to pry up the outer tire by about
1/6 of the circumference, and forcibly separate one side of the outer tire from the hub.
3. Find the air valve and pull it out of the air valve hole in the hub. To pull out the air valve more
conveniently, hold the air valve of the inner tire, and pull the outer tire outwards slowly to prevent damage to
the inner tire. Remove the inner tire from the position of air valve in sequence and separate the inner tire finally.
Note: Wrap the pointed end of the crowbar with fiber cloth to avoid damaging the inner tire and the hub's
coating.
Install the outer and inner tires
1. Fill a small amount of air into the deflated inner tire until the inner tire is just bulged to appear round.
2. Place the hub on top of a desk. Pay attention to the direction when installing the outer tire. There is an arrow
on the outer tire, and it must align with the forward direction of the wheel. Hold the hub with one hand and use
the other hand to insert one side of the outer tire into the hub groove.
3. Insert the air valve of the inner tire into the air valve hole. Insert the inner tire into the outer tire clockwise and
in sequence, ensuring that the air valve does not tilt. Then, insert the other side of the outer tire into the hub
groove. Finally, use a crowbar to install the remaining tire lips into the hub groove. After installation, pinch the
outer tire to check if the inner tire is pressed by the tire lips of the outer tire
4. Inflate the inner tire to 15-20 PSI, and check the safety lines on both sides of the outer tire. Ensure that the
distances from the safety lines to the hub edge are consistent.
5. Finally, inflate the inner tire to 45-50 PSI. Tighten the air valve cap. With that, the tire assembly is completed.
Note: Wrap the pointed end of the crowbar with fiber cloth to prevent damage to the inner tire and the coating of
the hub.
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