Inner tube 20 x 1 1/8 and 1 3/8 from Schwalbe - AV7A, Schraeder valve

Schwalbe 20 inch inner tube for tyres with width of 1 1/8 and 1 3/8 inch diameter.

Why choose this inner tube from Schwalbe?

Schwalbe test all the inner tubes that they make (twice), including an inflation test for 24 hours to ensure that the tube maintains its air pressure.

Less lost air means less time inflating and more time for you, whether it's riding, in bed before work or at the office.

Manufacturers code: AV7A

This inner tube fits ETRTO tyre sizes as shown below:
37-438 - 20 x 1 3/8 inch
28-440 - 500 x 28A
37-440 - 500 x 35A
28-451 - 20 x 1 1/8 inch
37-451 - 20 x 1 3/8 inch
(Please check sidewall of tyre for ETRTO size e.g. 37-451 to ensure this is the correct inner tube for you) 

Weight: 105g
Valve: Schrader / Car / Auto / Moto / American 8mm diameter with valve cap and rim nut 

Note: We advise against the use of tyre levers when installing tyres and inner tubes as it can result in damage to the inner tube, tyre or both.