Schwalbe Air Plus Inner Tube Nr. 17-AP – 28", SV 40mm, 37/47-622/635, Butyl

Schwalbe Air Plus Tube Nr. 17-AP – The Smarter Tube for Your 28" City or Trekking Bike

Imagine setting off on your morning commute or weekend tour and never having to think about tyre pressure. The Schwalbe Air Plus Nr. 17-AP makes that a reality. With its high proportion of pure butyl rubber and walls approximately 70% thicker than a standard tube, it holds air significantly longer and resists punctures and pinch flats far better than conventional alternatives. Fit it once, pump it up, and get on with the ride.

This versatile tube uses a SV (Sclavrand / Presta) valve with a 40 mm stem and covers an unusually wide range of rim diameters — both 622 mm (standard 28") and 635 mm (older 28" / 700B) — making it a great choice for classic city bikes, trekking bikes, and vintage-style bicycles. Tyre widths from 37 to 47 mm are supported (ETRTO 37/47-622/635). And like all Schwalbe tubes, it is 100% recyclable.

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
• Fits 28" wheels with ETRTO 622 and 635 rim diameters
• Tyre width range: 37–47 mm
• 100% recyclable
• Weight: 270 g

Specifications

• Brand: Schwalbe
• Model: Air Plus Nr. 17-AP
• Wheel size: 28"
• ETRTO: 37/47-622/635
• Min. tyre width: 37 mm
• Max. tyre width: 47 mm
• Rim diameter (ETRTO): 622 mm and 635 mm
• Valve type: SV / Sclavrand / Presta
• Valve length: 40 mm
• Material: Butyl rubber
• Weight: 270 g
• Recyclable: Yes, 100%
• Includes: 1 inner tube
• Sales unit: 1 piece per box / VE: 25

Frequently Asked Questions

What does 37/47-622/635 mean?

This ETRTO designation means the tube fits tyres between 37 and 47 mm wide, on rims with an inner diameter of either 622 mm (standard modern 28") or 635 mm (an older 28" standard, also known as 700B, found on some classic city and Dutch-style bikes). Always check your rim’s ETRTO diameter before ordering.

What valve type does this tube use?

The Nr. 17-AP uses an SV (Sclavrand / Presta) valve with a 40 mm stem. Presta valves are narrower than Schrader valves and require a Presta-compatible pump head. They are common on road, trekking, and city bike rims with a smaller valve hole.

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 — ideal for daily commuters who can’t afford a flat.

Is this tube suitable for city and trekking bikes?

Yes — the Nr. 17-AP is an excellent choice for 28" city bikes, trekking bikes, and touring bikes running tyres between 37 and 47 mm wide. Its superior air retention and puncture resistance make it particularly well-suited to everyday riding where reliability matters most.

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 (28", 37–47mm). Its thicker walls make it a particularly good choice for heavier e-bikes where puncture resistance is important.

Is the Schwalbe Air Plus tube recyclable?

Yes — like all Schwalbe tubes, the Air Plus Nr. 17-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.