CO2 Cartridge Mount/bracket for Road Bikes

thingiverse

I designed this bracket to secure and hold three CO2 cartridges. It wraps tightly around the seat post. The CO2 cartridges slide in from the top and are locked into place by spring tension and friction. I made sure there's enough space on the middle clamp to fit both the cartridge and the inflater head. The latest version features a hole that accommodates a 4mm hex key, a common size for road bike seatpost clamps and stem mounts. The bracket is designed specifically for a 27.2mm seat post and is secured using an M6 screw. To assemble it, you'll need an M6 x 1.0 socket cap screw, 25mm long, and an M6 acorn nut to clamp the bracket around your seat post tightly. If you're using a brittle material like PLA, you'll need to remove your seat first and slide the clamp onto the post from below. Current Version: I've tested several versions on my bike as I identify problems and make new ones. Latest Update: I made significant changes to the design of the bracket, including reinforcing the seat post clamping area, extending the height of the cartridge clamps, adding a hole for flexible CO2 cartridge placement, and incorporating a 4mm hex key holder.