This Lezyne 25g CO2 cartridge with thread can do it all. It inflates a large MTB tyre (26"x 2.5") up to 40 psi / 2.8 bar. This cartridge can be used with almost all Lezyne CO2 pumps. Also suitable for 27.5 and 29" mountain bike tyres. Available per one, 4+1 free, or 7+3 free.