CO2 Inflator Kit met 16g/25g CO2 Cartridges - Presta & Schrader Valve Compatibel - CO2 Fietspomp voor Road en Mountainbikes

The wheel/tire set I used this on was a DT Swiss R460db 700c rim with a Vittoria Zaffiro Pro Slick 25c tire and TPU inner tube. When I used this inflation system, I was indoors with an air temp of 60 degrees F. I screwed the cartridge into place at the bottom of the nozzle. No problem. As with anything presta nozzle, the one on this system pressed pretty easily into place over the valve. When I turned the activation lever, the nozzle very briefly leaked a bit of air but almost immediately sealed into place. The tire requires inflation between 100 and 130 PSI. The system filled my tire to just over 100 psi with a more to spare (though I doubt it would be near enough for a second tire). When the CO2 expanded from the cartridge into the presta valve, I got the expected thin icy layer over the cartridge (thanks for the sleeve!) and at the connection between the valve and the nozzle. The rubberized material in the nozzle contracted and gripped the valve to the point I couldn't pull it off. But the and of the nozzle is made to turn freely, which allowed me to essentially "unscrew" the nozzle from the valve with zero loss of air. I used this to inflate my tire in my living room before needing it for the first time on the road. Based off that, I'm confident that it will work great if I need to change out a tube on the road.

Funktioniert sehr gut

Buen producto, a buen precio, lo he usado y acorde a sus características

Despues de probar otras marcas, esta cimple con su funcion, es decir abre y cierra perfectamente.

Ok