Schwalbe AV5 Schrader Tube - 18"/20" Tyres - 40-355 to 47-355 32-369 37-390 & 37-400

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 95g

Applicable Tyre Sizes:
40-355 - 18 x 1.50
47-355 - 18 x 1.75
32-369 - 17 x 1 1/4
37-390 - 450 x 35a - 18 x 1 3/8
37-400 - 18 x 1 3/8