Schwalbe tube 27,5 "| 650B Mountainbike | Evo Tube SV21E
Schwalbe's novel bicycle tube is specifically designed for high performance sport. The aim was to keep the air long, stable and puncture resistant and still be very easy.
To satisfy both properties at the same time is not possible the conventional butyl tubes.
Why Schwalbe has gone a different route. There was no need at all the traditional black rubber. Instead, an entirely new, special thermoplastic material for bicycle inner tubes has been developed together with the Aero Than chemistry specialist BASF.
To further reduce weight and to increase the recyclability, valve stem and valve base are also made of Aero Than.
Material: Aero Than
intended use: MTB, XC, Trail, Tour
Product Id: SV 21E
compatible sizes (inches): 27.5 x 2.10 to 27.5 x 2.40
compatible sizes (ETRTO): 584-54 until 584-62
Valve length: 40 mm
Valve standard: SV
Weight: 72g (manufacturer)
Note: Do not use the tube with rim brakes! Reassembly with the same tire size! The weights of the tubes can vary.