Schwalbe tubes are designed & manufactured to retain air pressure considerably longer than their competitors. Not only is each individual tube inflated & inserted into a mould to ensure that there is even wall thickness & excellent air retention, they are also stored under pressure for 24hrs to test air retention.

• Valve Type: Schrader 40mm
• For 20 inch bikes
• 40/54-406/428 (20 x 1.50 ~ 2.0)
• Approx weight: 145g per tube

Fits all of the following size tyres:

40-406 - 20 x 1.50
47-406 - 20 x 1.75
50-406 - 20 x 2.00
54-406 - 20 x 2.10
57-406 - 20 x 2.25
60-406 - 20 x 2.35
62-406 - 20 x 2.40
54-428 - 20 x 2.00