Continental's large range of exclusive race tires is matched by an equally interesting range of tubes. There are normal butyl tubes as well as lightweight and ultra-lightweight tubes.

unitube	dimension	S36	S60	ETRTO	versions
Race 26 (also in S42)	18/25 - 559/571		x	25 - 559	26 x 1
				18, 20, 23, 25 - 571	650 x 18C, 20C, 23C, 25C
Race 26 Light	18/25 - 559/571	x [65 g]	x [75 g]	25 - 559	26 x 1
				18, 20, 23, 25 - 571	650 x 18C, 20C, 23C, 25C
Race 26 Supersonic	18/25 - 559/571	x [45 g]	x [50 g]	25 - 559	26 x 1
				18, 20, 23, 25 - 571	650 x 18C, 20C, 23C, 25C
Race 28 (also in S42)	18/25 - 622/630		S52	18, 20, 23, 25 - 622	700 x 18C, 20C, 23C, 25C
				23, 25 - 630	27 x 3/4 - 1
Race 28 Light	15/25 - 622/630	x [70 g]	x [80 g]	18, 20, 23, 25 - 622	700 x 18C, 20C, 23C, 25C
				23, 25 - 630	27 x 3/4 -1
Race 28 Supersonic	18/25 - 622/630	x [50 g]	x [55 g]	18, 20, 23, 25 - 622	700 x 18C, 20C, 23C, 25C
				23, 25 - 630	27 x 3/4 - 1
Cross 28 (also in S42)			S52	25/35 - 622	700 x 25/35C, 28 x 1-1,3

The advantages of the Continental Unitube system

• Multi-size tubes allow greater compatibility with more tire sizes, and fewer tubes.
• Unitubes are available in both Schrader and Presta valve tubes. Presta valves are available in a variety of lengths.
• All tubes are seamless and mold-cured (vulcanized) to ensure uniform roundness and improved reliability at the valve stem.
• Each and every tube passes a stringent 100% quality control inspection