2016 Schwalbe Cycling Tube SV15 700X18-28c Presta 40mm RVC
Each SCHWALBE tube is individually examined twice at the factory to ensure air-tightness. Special quality control that prevents unpleasant surprises.
- Measured weight: 106 grams
- Will fit tires from 18 to 28 mm in width
- 40 mm long Presta valve with removable valve core.
Airtightness. Apart from the quality of the ingredients, the purity of the rubber mixture is crucial to the quality of the tube. The base material is therefore sieved at enormous pressure through seven filters before being extruded. All tubes are inserted into a mould and inflated for vulcanization to ensure constant wall thickness and high air pressure retention.
Reliability. All tubes are inflated and stored for 24 hours in order to test for air pressure retention. Afterwards each, individual tube undergoes a careful visual inspection. This special quality control helps prevent unpleasant surprises and is why, over many years, Schwalbe tubes have become highly respected for outstanding reliability by bicycle dealers.
Valve. All valves are nickel plated and threaded and valve inserts\cores are replaceable.