Schwalbe SV7 Presta Tube - 20" Tyres - 40-406 to 62-406 & 54-428

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 length of 40mm for Standard version. Weight 145g.

Applicable Tyre Sizes:
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 2.125
60-406 - 20 x 2.35
62-406 - 20 x 2.50
54-428 - 20 x 2.00