Schwalbe Tube No. 20 Extralight for 28" Tyres

Extralight tube for 28“ tyres. Same reliability, less weight.

Specifications:

Application: Road
ETRTO: 18-622 to 25-630
Tyre Size: 28 x 3/4 to 27 x 1.0
Tube Material: butyl
Valve Type:Presta 40 mm, Presta 50 mm, Presta 60 mm, Presta 80 mm

Matching Dimensions (ETRTO):

- 28 x 3/4 = 700 x 18c (18-622)
- 28 x 3/4 = 700 x 20c (20-622)
- 28 x 7/8 = 700 x 22c (22-622)
- 28 x 7/8 = 700 x 23c (23-622)
- 28 x 1.00 = 700 x 25c (25-622)
- 27 x 7/8 (22-630)
- 27 x 1.00 (25-630)

Model Index:

18/25-622/630 Presta 40 mm
Valve Type: Presta
Valve Length: 40 mm
Factory Number: 10426343

18/25-622/630 Presta 50 mm
Valve Type: Presta
Valve Length: 50 mm
Factory Number: 10400103

18/25-622/630 Presta 60 mm
Valve Type: Presta
Valve Length: 60 mm
Factory Number: 10426363

18/25-622/630 Presta 80 mm
Valve Type: Presta
Valve Length: 80 mm
Factory Number: 10426383

Valve Information

Tubes are available with various valve types. Choosing a valve is dependent on application and the rim’s valve hole diameter.

Presta Valve:
- Synonyms: Sclaverand-Valve (SV), French Valve
- Outer Diameter: 6.5 mm
- Other: All Schwalbe tubes with a Presta valve can be unscrewed. (To lengthen the valve, add anti-flat agents, etc.)

Technology:

Airtightness
The quality of the ingredients and the purity of the rubber compound is decisive for the quality of the tube. Before extrusion, the basic material is forced through a total of seven filters under enormous pressure. All tubes are inserted and inflated into a mold for the vulcanization process. Only this ensures an even wall thickness and high air retention.

Reliability
Consistent quality control brings with it the security of use: each tube is inflated at the factory and stored under pressure for 24 hours in order to test the air retention.

Group Tube System
The high elasticity and quality material used in Schwalbe tubes allows a great many tyre sizes to be covered. For example tube no. 17 fits section widths from 28 mm up to 47 mm. Only an extremely high-quality and reliable tube is up to this requirement.

Contents:

- 1 x Schwalbe no. 20 Extralight tube

Gewicht:

-universal / 18/25-622/630 Presta 40 mm : 65 g