Air tire maintenance
All the tires on our strollers are the same as bicycle tires. Air tires absorb shock from rough roads for a smooth ride. However, please maintain the tire pressure for the best use. Air tires need regular maintenance. It may seem like a little extra work compared to other strollers, but the extra care before going outside ensures a smooth ride.
Check tire pressure
Tire pressure is just right when the tire yield approximately 1cm while you pressed firmly with your thumb.
Tire pressure is too low if…
* If the tires are lack of elasticity and feels like it is sinking.
* The stroller will feel like as if the tires are dragged over the ground.
* The air valve is sinking into the tire, and the valve is facing straight up to the rim.
Tire pressure is too high if…
* The tension on the surface is too strong and tires lack elasticity.
* The stroller will feel like it is ‘sliding’ over the ground.
If air pressure is too high, adjust by pressing the center of the air valve gently with a fingertip to release air.
If air pressure is too low, adjust as described in “How to inflate tires” below.
How To inflate
The stroller is equipped with a portable air pump to inflate the tire when needed.
Tire needs to be reinflated every months. This is differ in the frequency by the environment you are in or the number of time you use.
Remove the hose from the air pump with a twist.
Twist the hose up to fit to the air pump, and turn the screw on the air pump to tighten up.
Twist the hose while fitting it to the air pump, and turn the screw on the air pump to tighten it.
Twist and fit the tip of the hose to the valve on the tire.
Push the handle of the pump to force air into the tire.
* Tire pressure is just right if the surface of the tire yield approximately 1 cm when you pressed firmly with your thumb.
* A small amount of air is released from the tire when the hose is attached or removed.
* Use only the air pump provided to inflate tires. Other pump may cause a puncture.
Releasing air from tires
Check tire pressure if movement seems to be awkward (e.g. the tires of the stroller seem to be sliding over the ground) while pushing the stroller.
Lower the pressure as described below to improve the smoothness.
Twist and remove the valve cap on the tire.
Press the projection in the center of the air valve with a pointed stick or someting like a pen.
Position of the valves
A valve may sink into the tire if the stroller is used with low tire pressure.
Check the position of the valves before use. If a valve is in the wrong position, correct it as described below, and inflate the tire.
Correct valve position
Air valve sunk into tire
Air valve is out from a right position
How to correct the position of the air valve
Release all the air from the tire, once you make a gap between the rim and the tire. Adjust the tire and the rim to the correct central position as shown in the drawing, and inflate the tire again.
* If the valve cannot be pulled out, push it out from the back of the tire.
* The position of the valve may change if the stroller is used with low tire pressure. If the valve has sunk completely into the tire and cannot be pulled out, the tube must be replaced.
Central position of the tire
If the stroller is continuously used with low tire pressure, the tire may loose its central position on the rim, causing instability while pushing. If you feel some shakes of the stroller caused by anything other than the effects of the road surface and it becomes apparent while pusing, the tire may have been loosed from its central position. Correct the problem as described below, and inflate the tire pressure.
The correct central position
Off the center
Correcting the position of the tire on the rim
Release entire air from the tire to make a gap between the rim and the tire, adjust the tire and the rim to the correct central position as shown in the image, and inflate the tire again.
To check centering of the tire
Remove the tire and rotate the tire while holding the axle.
* The tube may have been inflated off-center if the stroller vibrates even after the position of the tire on the rim.
* Release air from the tire and center the tube with the same procedure used to correct the position of the valve, and inflate the tire again.