Zero CO2 Under Cage Piggyback Kit

Never be without a CO2 cartridge again. A convenient way to carry up to four CO2 cartridges on your bike. Simple to install - just place beneath your water bottle cage, using the longer screws provided. Then thread up to four Zero CO2 cartridges into the Cartridge mount. (Comes with 2 canisters)
One 16gram canister will fill:
- 2 20" tyre to 30psi
- 1 26" tyre to 40psi
- 1 700C tyre to 130psi