Zefal Co2 Threaded Cartridges 6 Pack - 16g

Zefal Co2 Threaded Cartridges 6 Pack - 16g Zefal replacement 16g threaded Co2 cartridges. Typical inflation ROAD 700 x 23C - 130psi / 9 bar MTB 26" x 1.95 - 40psi / 2.7 bar 29ER 29" x 2.1 - 31psi / 2.1 bar