Topeak Roadie TT Pump The Topeak Roadie TT Pump is a slender tyre inflation solution that is small enough to be neatly stored in a jersey pocket without being over-bulky. Its compact size but generous air capacity is made possible by an innovative dual-chamber system that allows tyres to be inflated quicker and to a higher pressure. Full aluminium construction is aesthetically pleasing but robust while Presta only valve compatibility serves all road bike applications while cutting weight over a dual valve system. The thumb lock configuration ensures an air-tight seal around the valve while the integrated dust cap keeps contaminants from entering the pump head, even when riding in filthy conditions. A side mount bracket complements by fastening securely to a bike's bottle cage bosses and provides an alternative but smart storage option if a riders pockets are otherwise filled.