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 90g.
Applicable Tyre Sizes:
18-520 – 24 x 3/4
20-520 – 24 x 3/4
22-520 – 24 x 7/8
23-520 – 24 x 7/8
25-520 – 24 x 1.00
28-520 – 24 x 1.10






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