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.
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.