Schwalbe Tube SV5. Reliable, high quality and very air tight inner tubes from Germany's number one manufacturer. All valves are nickel plated and valve inserts are replaceable.

18x1.50 (40-355)

18x1.75 (47-355)

17x1-1/4 (32-369)

18x1-3/8 (37-390)

18x1-3/8 (37-400)

Weight: 95g, Stem length: 40mm