Originally Posted by
chaadster
I've seen it more than once, and I guarantee you that, if you look in the rubbish bin at a trailhead or other ride start, you'll find 'em. Money down on that.
Originally Posted by
rjones28
Co2 cartridges are a multi-use item:
1. ballast to bring bike weight up to UCI minimum.
2. tire inflation.
3. projectile for warding off angry dogs.
4. provides work for those serving community service sentences.