Roar Control features Birzman's patented 'Turn Pierce Function' with a build-in valve that allows for effortless, controlled inflation by turning the cartridge to increase, decrease or stop the flow of CO2.
Turn the cartridge clockwise to puncture and close the valve; counter-clockwise to open the valve and release CO2.
Compatible with both Presta and Schrader valves; 16 g threaded cartridges.
CNC machined aluminium (valve head), Neoprene (grip)
4.2 x 2.3 x 1.4 cm (valve head)
15 g (valve head)
3 x 16 g cartridges & 1 neoprene grip