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	D	D40	A	A40	S36	S60	ETRTO	dimensions
Race 26	18/25 - 559/571					x	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	18/25 - 622/630					x	x	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

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