Ralson inner tube 26x1.75/2.125 (40/62-559) DV/40mm

Ralson inner tube 26x1.75/2.125 (40/62-559) DV/40mm

RALSON inner tube 26 × 1.75–2.125 (40/62-559) – DV Dunlop valve 40 mm

RALSON 26 × 1.75–2.125 is a bicycle inner tube intended for bikes with 26-inch wheels and a corresponding tyre size. With the declared range of 40/62-559, it is suitable for tyres 40–62 mm wide with a rim bead seat diameter of 559 mm.

The tube is fitted with a 40 mm DV (Dunlop/Woods) valve, which is used mainly on city, touring and leisure bikes.

It is a practical choice for everyday cycling and leisure rides, and as a spare tube in case of a puncture.

For bikes with 26-inch wheels

The RALSON tube is intended for 26-inch wheels with a rim diameter of 559 mm.

This size is used on many mountain, city, trekking and leisure bikes.

The tube is suitable for ordinary riding on asphalt roads, cycle paths and paved tracks as well as in lighter terrain.

Thanks to the declared width range, it can be used with various tyres of the corresponding diameter.

Size 26 × 1.75–2.125 (40/62-559)

The tube is marked with the inch size 26 × 1.75–2.125" and the ETRTO range 40/62-559.

The ETRTO designation indicates:

• 40–62 mm – declared range of tyre widths
• 559 mm – rim bead seat diameter

Before purchasing, we recommend checking the exact designation on the sidewall of the original tyre to ensure correct size compatibility.

DV Dunlop valve – length 40 mm

The tube is fitted with a DV (Dunlop/Woods) valve with a length of 40 mm.

The Dunlop valve is a traditional type of bicycle valve used mainly on city, touring and leisure bikes.

It is suitable for cyclists who use rims and inflation devices compatible with this type of valve.

Advantages of the 40 mm DV Dunlop valve:

• A traditional solution for city and touring bikes
• Easy inflation with a compatible bicycle pump
• Practical valve length of 40 mm
• Suitable for routine bicycle maintenance
• Simple to use when regularly topping up pressure

Important: The DV Dunlop valve is not the same as the AV car valve or the FV Presta valve. Before purchasing, the compatibility of the valve with the rim and the pump used must be checked.

A practical tube for everyday cycling

RALSON 26 × 1.75–2.125 is suitable for the everyday use of bikes with the corresponding tyre size.

It is used for daily commuting, leisure rides, family cycling trips and riding on paved tracks.

It can serve as a replacement for a worn or damaged tube and is also suitable as spare equipment in case of a puncture.

Easy maintenance and correct fitting

Careful fitting and regular pressure checks are important for the tube to work correctly.

Before installation, we recommend checking the inner surface of the tyre, removing any sharp objects and verifying the condition of the rim tape.

When inflating, the recommended pressure limits stated on the tyre and rim must be observed.

Correct pressure helps to ensure a comfortable ride, good rolling of the wheel and a reduced risk of damage to the tube.

Suitable as a replacement or spare tube

The RALSON tube is a practical replacement component for compatible 26-inch bikes.

Thanks to the 40 mm DV Dunlop valve, it is suitable especially for bikes that already use this type of valve.

It is a practical choice for routine maintenance, service repairs and preparing the bike for the new cycling season.

Main features:

• Manufacturer: Ralson
• Product type: bicycle inner tube
• Size: 26 × 1.75–2.125"
• ETRTO range: 40/62-559
• Rim diameter: 559 mm
• Declared range of tyre widths: 40–62 mm
• Valve type: DV – Dunlop valve (Dunlop/Woods)
• Valve length: 40 mm
• Purpose: city, touring, leisure and other compatible bikes
• Use: everyday riding, leisure cycling, cycling trips
• Suitable as: a replacement or spare tube

Main advantages:

• Suitable for 26-inch wheels with a 559 mm rim
• Declared tyre width range of 40–62 mm
• Practical DV Dunlop valve
• Valve length 40 mm
• Suitable for city and leisure bikes
• Practical when replacing a damaged tube
• Suitable for everyday use
• Can be used as a spare tube for cycling trips

Use: The RALSON 26 × 1.75–2.125 (40/62-559) inner tube with a 40 mm DV Dunlop valve is a practical choice for bikes with 26-inch wheels and a rim diameter of 559 mm. Thanks to the declared width range of 40–62 mm, it is suitable for various compatible tyres. It is used for everyday cycling and leisure rides, and as a replacement tube for routine bike maintenance and repairs.