Year after year, this rock solid performer is our best-selling tube. Simply put, the Continental Race road tube is a high-quality and reliable tube at a good price. Continental has a good eye on quality control, as we never see blems or seconds. The valve construction is stout and durable. It features a removable core which can be replaced if damaged or substituted with a longer valve for aero rims. The removable core also allows for the addition of sealant like Stan's NoTubes tire sealant.
You will need to choose your valve length. Standard box rims can use the 36mm, but most riders just opt for the 42mm because they fit just about any rim except deeper aero rims. Choose 700c for regular diameter rims and 650c for smaller non-standard rims (most/all riders need 700c).