Inflatable tires are one of the easiest ways to add realism and improved shock absorption to your RC airplane. DU-BRO’s large-scale inflatable wheels not only look scale-authentic, but they also help your model handle rough terrain, tall grass, and uneven runways with ease. These durable, serviceable tires are designed to last—but like any functional component, they need proper use and occasional maintenance to perform their best.
In this DU-BRO 101 workshop session, we break down how to use, inflate, and service DU-BRO inflatable tires so you can keep them running smoothly for years to come. These wheels are ideal for rough-field flyers, bush planes, Cubs, large-scale models, and anyone looking for a softer, more forgiving landing experience.
DU-BRO offers a full line of wheels—from inflatable tires to treaded, foam, and scale Cub wheels.
How to Inflate DU-BRO Inflatable Tires
Each tire includes an inflator fitting compatible with a short length of tubing and a standard hand pump. A sports-ball pump, bicycle hand pump, or RC retract air pump all work—just avoid electric pumps.
Why no electric pumps?
Because inflatable tires have no internal belts, it’s extremely easy to overinflate them with powered pumps. Too much air can distort the tire or cause it to pop.
A few hand pumps are usually enough. Use a ruler to ensure you don’t exceed the tire’s specified diameter. For example, a 4.5-inch wheel should remain at 4.5 inches even when fully inflated.
Need replacement tires or different styles? DU-BRO carries many sizes and types.
Replacing a Leaking Tire Valve (SKU 809)
Like any mechanical part, tire valves can wear out over time. If your tire goes flat repeatedly, the valve may be the culprit. DU-BRO replacement valves make servicing simple.
How to Replace a Valve
-
Insert the inflator tool into the old valve.
-
Gently rock and rotate while pulling to remove it.
-
Lubricate the new valve with a few drops of isopropyl alcohol—avoid saliva, as it can introduce bacteria.
-
Insert the new valve using the same rocking motion.
Drilling Axle Holes for Proper Fit
DU-BRO inflatable wheels arrive with a 3/16-inch axle hole, but you can safely enlarge it to ¼ inch if needed. Always use a drill press—manual drilling increases the risk of wobble, which can cause vibration and gear instability.
DU-BRO offers axles, collars, and landing gear hardware that pair perfectly with these wheels.
How Much Pressure Should You Use?
Inflatable RC tires don’t need high pressure—just enough to maintain shape under the model’s weight. Even after 3–5 pumps, many wheels barely register 10 psi. Focus on size, not pressure:
-
Inflate only until the tire reaches its rated diameter
-
Stop well before it feels rock-hard
-
Never exceed visual size limits
Overinflation can cause tire distortion or structural failure.
For long-term performance, DU-BRO recommends servicing tires periodically and checking valves before flight. DU-BRO also offers tire tools, adapters, and inflators to simplify maintenance.
Smooth Landings Start With Proper Tire Care
DU-BRO inflatable tires provide incredible shock absorption, scale appearance, and versatile performance—but only when maintained properly. With the right inflating technique, occasional valve replacement, and careful axle fitting, your wheels will last many flying seasons.
