Bicycle Inner Tube 29x 2.25 / 2.35 / 2.40 / 2.50 AV 40mm PROX MTB

Bicycle Inner Tube 29x 2.25 / 2.35 / 2.40 / 2.50 AV 40mm PROX MTB

ProX is a manufacturer of a very wide range of bicycle accessories. Its offer includes products from lighting, through tools, to various bicycle parts. The largest bicycle portal in Poland – Bikeworld, has given a very positive assessment of the "Pro X" brand products in its tests.

Strong butyl inner tube from ProX designed for MTB bikes with 29-inch wheels and wide tires.

Made using MOLDED technology (molded), which guarantees uniform wall thickness and higher resistance to overloads typical of off-road riding.

• Size: 29" x 2.25 - 2.50 (ETRTO 57/64-622)

• Intended use: Wide MTB / Trail tires

• Valve: AV 40 mm (Car / Auto / Schrader)

• Material: High-quality butyl rubber

• Weight: 289 g

• Packaging: Original ProX box (BOX version)

➡️ Designed for wide tires: The extensibility range up to 2.50" (64mm) makes the tube perfectly fill the tire without losing its strength properties.

➡️ The universal AV valve allows inflation at any gas station and with most standard pumps.

• 29 x 2.25

• 29 x 2.35

• 29 x 2.40

• 29 x 2.50

How can I make sure this inner tube fits my MTB?

On mountain bikes (29er), the tire width is key. This tube model is designed for wider tires.

• Diameter: Must be 29 inches (ETRTO 622 marking).

• Width: This tube covers a range from 57 mm to 64 mm (i.e. from 2.25" to 2.50").

Why is this important?

Using an inner tube that is too narrow for a wide tire (e.g. a 2.10 tube for a 2.40 tire) causes it to overstretch and weaken, leading to frequent punctures. By choosing a ProX inner tube with a range of up to 2.50, you ensure peace of mind and safety on the road.