I like being conspicuous on the bike so I put this truck horn on my townie bike. It's a simple build and it's much louder than any bike bell for when you need to be heard. The pump is screwed onto the horn with a couple bolts and I use a hose clamp to keep the hose attached on the horn side. One bungee cord is enough to hold on the bike between the fork blade and the rack. I also use one more to keep the pump at arms reach. If you found this useful or at least entertaining, leave a comment or buy me a coffee: https://buymeacoffee.com/bikingplaces My LED bike hack: • Be more visible on your bike at night #bikehorn #bikebuild #bike