Schwalbe Tubes for brompton folding bike

Introducing the Schwalbe tubes for Brompton Folding Bike. Made of a material that completely redefines bicycle tubes: extremely light, with maximum puncture protection and designed for minimum rolling resistance.

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CAR VALVE

Model: Schwalbe AV4
Size: 16 x 1 1/8 – 18 x 1.35
Valve: 40mm Schrader

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PRESTA VALVE

Model: Schwalbe SV4
Size: 16 x 1 1/8 – 18 x 1.35
Valve: 40mm Presta

Schwalbe SV4 16-18in
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We regularly deliver to Sydney, Melbourne, Brisbane, Perth, Adelaide, Gold Coast–Tweed Heads, Newcastle–Maitland, Canberra–Queanbeyan, Sunshine Coast, Wollongong, Geelong, Hobart, Townsville, Cairns, Darwin, Toowoomba, Ballarat, Bendigo, Albury–Wodonga, Launceston… just about anywhere in Australia!

ABOUT Schwalbe Tubes for brompton folding bike

This Schwalbe AV4 16/18 and SV4 16/18 inch tube is our most popular inner tube – favoured by Brompton riders. It is exactly the same tube as the Brompton XL tube with the addition of a rim nut and a box. It fits all Brompton tyres. This inner tubes weighs in at just 85g and comes with a Schrader or Presta valve – that is a whopping 20g (almost 25%) lighter than the Brompton standard inner tube.

Schwalbe Tubes for brompton folding bike. THE FACTS.

  • Fully light-weight, right to the valve – lighter than the Brompton standard inner tube.
  • Puncture protection newly defined – the material itself prevents sudden air loss
  • Minimal rolling resistance – maximum riding dynamics
  • Extremely heat resistant – certified for rim brakes
  • A stable ride – even with low air pressures
  • Easy installation – without slipping or pinching
  • Made in Vietnam
  • 100% recyclable

Schwalbe Tubes for brompton folding bike are 100% RECYCLABLE

AV4 and SV4 tubes consist of 100% thermoplastic polyurethane (TPU), including the valve, and are therefore fully recyclable. Like all Schwalbe tubes, AV4 and SV4 tubes may be returned to Schwalbe at no cost using the tube recycling programme. The material of used tubes is recycled to make sealing or insulation material.

Schwalbe Tubes for brompton folding bike DEVELOPMENT

Schwalbe Tubes for brompton folding bike. THE WONDER MATERIAL FROM THE SCHWALBE INNOVATION HUB.

A bicycle tube is predominantly made of Butyl rubber. Butyl is a very elastic and airtight synthetic rubber. But as with the tire, other fillers are necessary to make up the rubber compound. The quality of a tube can vary significantly depending on the rubber compound. For instance Schwalbe tubes have extremely high air retention and elasticity. This high elasticity allows a wide range of different tire sizes to be covered.

There is a difference between heat molded and autoclave tubes. Vulcanizing in a mold improves the uniformity of wall thickness, thus reducing weight and improving air retention. For this reason the autoclave tubes which can be produced easier have become less common over the past years. Schwalbe tubes have always been made using the heat molding process.

Every tube also needs a valve, which is bonded to the tube during the vulcanizing process.

SCHWALBE AV4 TUBES

Schwalbe 16 and 18 inch inner tube – Schrader Valve
It is exactly the same tube as the Brompton XL tube with the addition of a rim nut (see below for more info about rim nuts) and a box. It fits all Brompton tyres. This inner tube weighs in at just 85g and comes with a Schrader / car type valve – that is a whopping 20g (almost 25%) lighter than the Brompton standard inner tube.
The AV4 inner tube fits ETRTO / ISO 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″
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SCHWALBE SV4 TUBES

Schwalbe 16 and 18 inch inner tube – Presta Valve
It is exactly the same tube as the Brompton XL tube with the addition of a rim nut (see below for more info about rim nuts) and a box. It fits all Brompton tyres. This inner tube weighs in at just 85g and comes with a Schrader / car type valve – that is a whopping 20g (almost 25%) lighter than the Brompton standard inner tube.
Fits the following tyre sizes:
  • 16 x 1 3/8 (37-340)
  • 16 x 1 1/8 (28-349)
  • 16 x 1 3/8 (37-349)
  • 18 x 1 1/8 (28-355)
  • 18 x 1.35 (35-355)
  • 16 x 1.35 (35-349)
  • 400 x 35A
Schwalbe SV4 16-18in
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“Great inner tubes. Quality valve with threaded stem and retaining nut, which fits my Brompton rims perfectly (many others are slightly too large). Best inner tube I have found. Will be buying more of these…”

– JB, Satisfied Customer since 2018 –

“Bought these for a Brompton, originally with standard Brompton tyres, but more recently switched to Schwalbe Marathons. I quite like like the smaller cross-section, as makes slightly easier to fit and means they take up very little space if you need to carry a couple. Quality seems good with the few I’ve bought so far. Possibly lose about 5-10psi a week in my experience, riding around 125km per week.

– Mitchenall, Satisfied Customer since 2017 –

“Perfect size for Brompton. This replaces the original Kenda tube which is prone to leak at the valve neck.“

– Murhadillah, Satisfied Customer since 2016 –

FAQ

WHAT EXACTLY ARE TUBES FOR BROMPTON BIKE?

AV4 and SV4 are  predominantly made of Butyl rubber. Butyl is a very elastic and airtight synthetic rubber which fits all Brompton tyres. It serves as base material for high end bicycle tubes and made in Vietnam.

WHAT ADVANTAGE DOES TUBES FOR BROMPTON FOLDING BIKE OFFER?

AV4 and SV4 are exactly the same tube as the Brompton XL tube with the addition of a rim nut and a box. It fits all Brompton tyres. This inner tubes weighs in at just 85g and comes with a Schrader or Presta valve – that is a whopping 20g (almost 25%) lighter than the Brompton standard inner tube.

CAN I INFLATE SCHWALBE AV4 AND SV4 TUBES USING CO2 CARTRIDGES?

Yes, however, a CO2 cartridge should only be used once the tube has been fully installed. Outside the tire, AV3 and SV3 tubes may only be inflated carefully until they reach a round shape and are free of folds (equivalent to max. 0.3 bar); CO2 cartridges are not intended for this purpose.

CAN SCHWALBE AV4 AND SV4 TUBES BE TAKEN OUT AND REINSTALLED TO A DIFFERENT TIRE?

Yes, however, the tubes may only be reinstalled into a tire of the same width.

WHY CHOOSE THIS INNER TUBE OVER OTHER TUBES AVAILABLE OUT THERE?
As Gerorge Orwell didn’t say “All tubes are equal, but some are more equal than others”. Schwalbe perform a leak test on all of the tubes they make (twice), including inflation for 24 hours to ensure they maintain their air pressure. The valve has a replaceable core (not found on all inner tubes).
WHAT IS THE PURPOSE OF A RIM NUT?

Bear in mind that unlike this tube some inner tubes don’t have a rum nut. The rim nut secures the valve into the rim. Your bike can be ridden perfectly safely without a rim nut. It comes in useful when installing a tyre or attaching a pump – as it helps stop the valve being pushed inside the rim With some rims there may be a rattle/noise if the valve is not fixed – that is why often valves without a rim nut are coated in rubber. The rim nut must only be tightened by hand. Never tighten the rim nut with pliers, as this can lead to inner tube damage.

WHAT IS THE VALVE CAP FOR?

The clear valve cap supplied with the Schwalbe inner tubes should be used, especially with Schrader and Presta valves. It prevents dirt / water and chemicals from getting inside the valve and causing corrosion and damage – meaning the valve / tube will last longer.

WHAT TYPE OF VALVE AND WHAT LENGTHS ARE AVAILABLE FOR TUBES FOR BROMPTON FOLDING BIKE?

AV4 tubes comes with a Schrader valve of 40 mm length and SV4 comes with Presta Valve of 40mm length. Just like the tube, the valve is made of thermoplastic polyurethane and is also 100% recyclable.

CAN YOU TAKE OUT THE VALVE INSERT OR USE VALVE EXTENSIONS?

The valve insert of AV4 and SV4 tubes are screwed in and may be replaced if necessary. Therefore, the valve stem is also suitable for extensions.