Inner tube 18x1.5-1.75 and 1 3/8 by Schwalbe - Schrader valve

17 inch and 18 inch bicycle inner tube by Schwalbe with Schrader / car type valve

Why choose this inner tube from Schwalbe and not something cheaper?

Because not all inner tubes are the same. Schwalbe test all tubes (twice), including inflation for 24 hours to ensure they maintain their 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.

This inner tube fits ETRTO tyre sizes as shown below:
40-355 - 18 x 1.50 inch
47-355 - 18 x 1.75 inch
32-369 - 17 x 1 1/4 inch
37-390 - 18 x 1 3/8 / 450 x 35A (French size)
37-400 - 18 x 1 3/8 inch 

please check the side of the tyre for the ETRTO size to ensure you select the correct tube size.

Manufacturers code: AV5
Made in: Indonesia 

weight: 104g

Valve: Schrader / car / auto / moto / American 8mm with rim nut and valve cap