The Schwalbe (SV21) Inner Tube 27.5” Presta keeps the air much longer due to the purity of the rubber compound and the uniform wall thickness. They are extra light but with the same reliability as standard variants. The width of this inner tube is 40mm - 62mm.
Features & Benefits:
Airtightness - All tubes are inserted into a mould to ensure constant wall thickness and air pressure retention
Reliability
Group tube system - A tube to cover many tire sizes
The low slung top tube and progressive geometry means this bike blends into whatever surroundings you place it; from raucous short-cuts across town to skipping...