Threaded 16g Co2 cartridge. 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.. This product is for instore sales only, due to new Royal Mail restrictions
Best Price: £3.59 from Merlin Cycles