The Schwalbe Aerothan MTB+ is an extremely lightweight and highly puncture-resistant bicycle tube with low rolling resistance for intensive use. The robust tube maintains its shape and safety even at low air pressure. Aerothan Tubes are made from 100% thermoplastic polyurethane (TPU) up to the valve and are fully recyclable. **Benefits of the Aerothan TPU Tube** - Consistently lightweight up to the valve (up to 40% lighter than comparable Schwalbe Extralight butyl tubes) - Minimal rolling resistance (on par with tubeless levels) – maximum riding dynamics - High puncture protection - Extremely heat-resistant - Stable handling – even at low air pressures - Easy installation – without slipping or pinching - Made in Germany - 100% recyclable **Test Results** Very good (as test winner) – Roadbike, issue 04/2023 **Features** - No. 21FE suitable for wide MTB+ tires from 27.5 x 2.40 to 27.5 x 2.80 inches (ETRTO 62-584 to 75-584) (French 650B / 650 B x 70) - Valve: SV (Sclaverand/French valve) – 40 mm length - Weight 109 g **Delivery Contents** 1 x Schwalbe Aerothan bicycle tube 27.5" MTB+ - NR. 21FE