If you're like us, you find comfort on the middle path; far away from the polarities of the cycling world. To us, lightweight clinchers epitomize this ideology, and we applaud your choice of race wheels that can double as a training set. Your tubes should reflect this duality by providing both durable, puncture-resistance and a weight-savings that you can feel on race-day. Easier said than done. However, the Continental Race Light Tube meets both criteria. By strategically shaving 19g off of the Race Tube, the Race Light Tube will keep your rotational weight down without sacrificing the ability to defy the attacks of debris.The Continental Race Light Tube is available in a 700c x 18-25mm size with the option of either a 42 or 60mm Presta valve. For your classic build, it's also being offered in a 27in x 1-3/4in size.