Ralson inner tube 24x1.9-2.125 (44/57 - 507) AV/40mm

Ralson inner tube 24x1.9-2.125 (44/57 - 507) AV/40mm

RALSON inner tube 24 × 1.90–2.125 (44/57-507) – AV car valve 40 mm

RALSON 24 × 1.90–2.125 is a bicycle inner tube intended for bikes with 24-inch wheels and a corresponding tyre size. With the declared range of 44/57-507, it is suitable for tyres 44–57 mm wide with a rim bead seat diameter of 507 mm.

The tube is fitted with a 40 mm AV (Schrader) car valve, which allows easy and convenient inflation with ordinary bicycle pumps with a matching head as well as with car compressors.

It is a practical choice for childrens, junior and other compatible bikes with 24-inch wheels. It is suitable for everyday riding and leisure cycling, and as a spare tube in case of a puncture.

For 24-inch bikes

The RALSON tube is intended for wheels with a rim diameter of 507 mm, which corresponds to the common 24" size used on many childrens and junior bikes.

It is used mainly for ordinary leisure cycling, rides to school, family trips or riding on cycle paths and paved tracks.

Thanks to its size range, it is suitable for various tyre widths within the declared compatibility.

Size 24 × 1.90–2.125 (44/57-507)

The tube is marked with the inch size 24 × 1.90–2.125" and the ETRTO range 44/57-507.

The ETRTO designation indicates:

• 44–57 mm – declared range of tyre widths
• 507 mm – rim bead seat diameter

When choosing, we recommend going primarily by the size stated on the sidewall of the original tyre and checking that it corresponds to a diameter of 507 mm.

AV car valve – length 40 mm

The tube is fitted with an AV (Schrader) car valve with a length of 40 mm.

The car valve is popular thanks to its ease of use and the wide availability of compatible inflation devices. It allows convenient inflation at home, on the road and at petrol stations using a suitable compressor.

Advantages of the AV car valve:

• Easy and quick inflation
• Compatibility with pumps for car valves
• Can be inflated with a car compressor
• Practical length of 40 mm
• Simple pressure checking and topping up

Before fitting, it is important to check that the rim has a hole intended for an AV car valve.

A practical tube for everyday use

RALSON 24 × 1.90–2.125 is suitable for the everyday use of childrens and junior bikes.

It can serve as a replacement for a damaged or worn tube as well as spare equipment for longer cycling trips.

When fitting, we recommend checking the inner surface of the tyre, removing any sharp objects and verifying that the rim tape is in good condition.

Correct inflation pressure helps to ensure a comfortable ride and reduces the risk of damage to the tube. The pressure limits stated on the tyre and rim must always be observed.

Suitable as a replacement and spare tube

The RALSON tube is a practical replacement component for bikes with the corresponding tyre size.

Thanks to the 40 mm AV car valve, it is easy to use for regular maintenance and also suitable as a spare tube in case of a puncture during a cycling trip.

Main features:

• Manufacturer: Ralson
• Product type: bicycle inner tube
• Size: 24 × 1.90–2.125"
• ETRTO range: 44/57-507
• Rim diameter: 507 mm
• Declared range of tyre widths: 44–57 mm
• Valve type: AV – car valve (Schrader)
• Valve length: 40 mm
• Purpose: childrens, junior and other compatible bikes
• Use: everyday riding, leisure cycling, cycling trips
• Suitable as: a replacement or spare tube

Main advantages:

• Suitable for 24-inch wheels with a rim diameter of 507 mm
• Declared tyre width range of 44–57 mm
• Practical AV (Schrader) car valve
• Valve length 40 mm
• Easy inflation with compatible pumps and compressors
• Suitable for childrens and junior bikes
• Practical for everyday and leisure cycling
• Suitable when replacing a damaged tube
• Can be used as a spare tube for trips

Use: The RALSON 24 × 1.90–2.125 (44/57-507) inner tube with a 40 mm AV car valve is a practical choice for childrens, junior and other compatible bikes with 24-inch wheels. Thanks to the declared width range of 44–57 mm and the standard car valve, it is suitable for everyday use and leisure rides, and as a replacement tube for routine bike maintenance.