MADISON, WI (BRAIN)—Planet Bike is offering a two-pack of 25 gram threaded CO2 cartridges. The larger cartridges are ideal for 29er tires and larger high pressure touring tires.
The cartridge will inflate a 29er tire to about 45 psi, a 26-inch mountain bike tire to 50-60 psi or a cyclocross or touring tire to 80 psi.
