GET 'ER DONE. A quick and easy tool to have with you while biking is the Blackburn Wayside CO2 Thread-On Inflator. This small and compact hand inflator features a spring loaded valve design and a CNC alloy construction. It is compatible with presta and schrader valve types for easy use. The Wayside CO2 Inflator comes with a 16g threaded CO2 cartridge.