25g threaded co2 cartridges

Threaded 25g Co2 cartridge. Typical inflation; * ROAD 700 x 23C - 2 x Tyres 90psi / 6.2 bar * MTB 26" x 1.95 - 2 x Tyres 30psi / 2.1 bar * 29ER 29" x 2.1 - 2 x Tyres 23psi / 1.6 bar