The Continental Race Bike Inner Tube is lightweight and features a high pressure Presta type valve. This inner tube makes a great replacement for damaged inner tubes which cannot be fixed with simple puncture repair.Seamless construction, with a mould-cured vulcanisation, to ensure uniform roundnessBy fitting different types of tubes you can actively influence the handling characteristics of your bike with little effortDifferent wall thicknesses and the associated characteristics make this possibleAll tube types listed are made of a high quality butyl mixturePresta valveCTU16 181371 181371 TUC81371CTU161 181381 181381 TUC81381CTU166 181781 181781 TUC81781