SCHWALBE No.20 Tube 28" Extralight Road/Triathlon

Stable air pressure
Schwalbe inner tubes simply hold air much longer. The quality of the ingredients and the purity of the rubber mixture determine the quality of the tube even at the material stage. During vulcanisation, every Schwalbe tube is placed in a mould and pumped up - this is the only way to ensure uniform wall thicknesses and excellent air retention.

Reliability
The consistent control ensures the highest possible functional reliability: each tube is pumped up at the factory and stored under pressure for 32 hours to check for air retention.

Group tube system
Due to the high elasticity and quality, a single tube covers many tyre sizes. For example, tube no. 17 works as well with a tire width of 28 mm as with a tire width of 47 mm. Only an extremely high-quality and reliable tube can meet this requirement.

Extralight
Same reliability. Reduced weight. Proven over many years.