The CST thorn proof tubes are made of a high quality, thick, thorn resistant, rubber. The triple thickness of this tube prevents punctures and allows you to get on with your ride.
26x1.90/2.125" / Schrader
What Size Do You Need?
Check and compare the relevant numbers on your existing tyre or tube with the sizes listed here.
Schrader Valve = Fatter Car Type Valve
Presta Valve = Skinny Valve. Also known as French or High Pressure Valve.