Schwalbe Bicycle Tube AV4 16 18 Schrader

Our most popular inner tube - the same tube as the Brompton XL tube with the addition of a rim nut (see below for more info about rim nuts)
Riding a small wheel bike - Brompton / Dahon for example?
Then this is the tube for you - weighing in at just 85g with a car type valve - that is a whopping 20g lighter than the Brompton standard inner tube.
Schwalbe 16 x 1 3/8 inch Brompton compatible inner tube with schrader / car / moto type valve.
Why choose this inner tube?
Because not all inner tubes are the same.
Schwalbe leak test all tubes (twice), including inflation for 24 hours to ensure they don't lose 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:
37-340 - 16 x 1 3/8 and 400 x 35A
28-349 - 16 x 1 1/8
37-349 - 16 x 1 3/8
28-355 - 18 x 1 1/8
35-355 - 18 x 1.35
35-349 - 16 x 1.35
Manufacturers code: AV4
Made in: Indonesia
What is the purpose of a rim nut?
The rim nut fixes the valve into the rim. Some regard it as unnecessary. Indeed, a bicycle can be ridden perfectly safely without a rim nut. It is however helpful when attaching the pump connector, as particularly when the pressure is low the valve may fall inside the rim. With some rims there may be a rattle if the valve is not fixed.
The rim nut must only be tightened by hand. Never tighten the rim nut with pliers, as this can lead to tube damage.
This Inner tube is compatible with the following tyres:
Brompton Kojak 32-349 / 16 x 1 1/4 inch folding tyre with reflective sidewall
Schwalbe Kojak 32-349 / 16 x 1 1/4 inch wired tyre
Schwalbe Marathon 16 x 1.35 tyre
Schwalbe Marathon plus 16 x 1.35 tyre
Brompton Green / Kevlar tyre
Bicycle compatiblity includes:
Brompton folding bikes
Dahon curve 16 folding bike
Mezzo D10 16 folding bike
and many more