Silca's Ultimate TPU Tube is both light and compact enough to be a handy spare and fast enough to offer a serious alternative to tubeless setup. Made from Thermoplastic Polyurethane (TPU), it's strong, reliable and constructed to avoid the failures common to other TPU tubes. Specification A compact spare or a great alternative to tubeless setup Half the weight of butyl tubes, among the lowest rolling resistance of any tube material From clear TPU, made without pigments that reduce strength and rolling resistance With secure, patented, bonded aluminium mechanical valve connection Threaded, aluminium valve with lockring nut for confident roadside inflation With removable valve cores, valve extender compatible Aluminium valve and TPU material resist heat buildup If using an electric pump, inflate in 15 PSI steps to allow heat dissipation Supplied with adhesive patch and alcohol prep wipe Rim and disc brake system compatible Backed by the Silca Satisfaction Guarantee Size:...