Continental 650c Supersonic Road Inner TubeA must have for any road cyclist. The Continental 650c Supersonic is a reliable, lightweight inner tube made from butyl which is even lighter than standard latex tubes. The inner tube can be used in conjunction to a normal puncture kit for easy installation. The tube comes with a shorter valve that makes it ideal for wheels with a depth of 24mm or 30mm.FeaturesAll-purpose inner tube for road bikesButyl constructionSeamless designMould-cured vulcanisationBuy Continental Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.