Schwalbe Air Plus inner tube No. 21+AP (27.5+")

Schwalbe Air Plus inner tube No. 21+AP – 27.5 inch

The Schwalbe Air Plus inner tube No. 21+AP is a particularly air-pressure-stable and puncture-resistant bicycle inner tube for 27.5-inch (also 27.5+) tires. Thanks to its extra-thick walls and high-quality butyl rubber, this inner tube is especially suitable for demanding use where you want to inflate less often and need more protection against punctures – for example, on mountain bike tours, trekking rides, or on e-bikes.

Features & Technology

• Size: 27.5″ / 27.5+″ (ETRTO 54‑584 to 70‑584) – suitable for tire widths from approx. 2.10″ to 2.75″.
• Material: Airtight butyl rubber with approximately 70% greater wall thickness compared to standard hoses for increased puncture resistance.
• Valves: Available with Schrader (AV) or Sclaverand/Presta (SV) valve, each approx. 40 mm valve length – a practical length for many 27.5" rims.
• Durability: Particularly stable in air pressure – maintains air pressure significantly longer, so it needs to be pumped up less often.
• Recycling: 100% recyclable and environmentally friendly.
• Weight: Approx. 400 g – robustly designed for increased stress in off-road use.

Advantages

• Significantly increased air pressure stability for longer periods of inactivity between pumping cycles.
• Additional puncture protection thanks to thick-walled construction – ideal for wide tires, e-bikes and MTB tours.
• Versatile use on 27.5″ and 27.5+″ tires with a wide ETRTO range.
• Suitable for different valve types and rims.