Schwalbe Air Plus Tube Nr. 14-AP – Longer Air Retention, Fewer Pump Stops

There’s nothing more frustrating than starting a ride only to find your tyre has gone soft overnight. The Schwalbe Air Plus Nr. 14-AP is engineered to solve exactly that problem. Thanks to its high proportion of pure butyl rubber and walls approximately 70% thicker than a standard tube, the Air Plus holds air significantly longer — so you pump up less often and spend more time riding. It’s the smart upgrade for your 27.5" wheels.

This version uses a SV (Sclavrand / Presta) valve with a 40 mm stem, making it ideal for rims with narrow valve holes. Compatible with tyres from 40 to 62 mm wide (ETRTO 40/62-584), it suits a wide range of 27.5" mountain bike and trail tyres. And when it eventually reaches the end of its life, it’s 100% recyclable — just like all other Schwalbe tubes.

Key Features

Superior air retention — holds air significantly longer than standard tubes
~70% thicker walls for above-average puncture and pinch-flat protection
High-purity butyl rubber construction
Valve type: SV (Sclavrand / Presta), 40 mm length
100% recyclable
Fits 27.5" wheels (ETRTO 40/62-584)
Tyre width range: 40–62 mm
Weight: 305 g

Specifications

Brand: Schwalbe
Model: Air Plus Nr. 14-AP
Wheel size: 27.5" (also known as 650B)
ETRTO: 40/62-584
Min. tyre width: 40 mm
Max. tyre width: 62 mm
Rim diameter (ETRTO): 584 mm
Valve type: SV / Sclavrand / Presta
Valve length: 40 mm
Material: Butyl rubber
Weight: 305 g
Recyclable: Yes, 100%
Includes: 1 inner tube
Sales unit: 1 piece per box / VE: 25

Frequently Asked Questions

What is the difference between the Nr. 14-AP and the Nr. 14L-AP?

Both are Schwalbe Air Plus tubes for 27.5" wheels, but they differ in valve type and tyre width range. The Nr. 14-AP uses an SV (Presta) valve and fits tyres 40–62 mm wide (ETRTO 40/62-584). The Nr. 14L-AP uses an AV (Schrader) valve and fits wider tyres, 54–70 mm (ETRTO 54/70-584). Choose based on your rim’s valve hole size and your tyre width.

What valve type does this tube use?

The Nr. 14-AP uses an SV (Sclavrand / Presta) valve with a 40 mm stem. Presta valves are narrower than Schrader valves and are commonly found on road and mountain bike rims with a smaller valve hole. You will need a Presta-compatible pump head to inflate this tube.

What tyre sizes is this tube compatible with?

This tube fits 27.5" (650B) wheels with tyres between 40 and 62 mm wide (ETRTO 40/62-584). It is suitable for a wide range of trail and all-mountain bike tyres in this wheel size.

What makes the Air Plus better than a standard tube?

The Air Plus is made with a higher proportion of pure butyl rubber and has walls approximately 70% thicker than a standard tube. This results in significantly better air retention (you pump up less often) and above-average resistance to punctures and pinch flats.

Is this tube compatible with e-bikes?

Yes — the Air Plus tube is suitable for use in e-bike tyres within the compatible size range (27.5", 40–62mm). Its thicker walls make it a particularly good choice for heavier e-bikes where puncture resistance matters.

Is the Schwalbe Air Plus tube recyclable?

Yes — like all Schwalbe tubes, the Air Plus Nr. 14-AP is 100% recyclable. Schwalbe runs a tube recycling programme, so when your tube reaches the end of its life, it can be returned for recycling rather than going to landfill.

Schwalbe Air Plus Inner Tube Nr. 14-AP – 27.5", SV 40mm, 40/62-584, Butyl