This amazing air horn can be easily mounted on any handlebar. It's super convenient as it can be refilled using any bike pump. No need for batteries or cartridges! It comes with a volume control switch to adjust the sound as per your needs. The clamp is designed to fit handlebars with a diameter of 22 - 26mm. Note that the clamps and knobs, shown in red in the pictures, are actually white.

Using this Delta bike horn is a breeze. First, use the provided clamp to attach the horn to your bike's handlebar. Make sure it fits snugly on handlebars that are 22 - 26mm in diameter. There's no need to worry about batteries or cartridges, so you can focus on the road. When the horn runs out of air, just grab any bike pump and refill it. To control the volume, use the handy volume control switch. As for maintenance, keep the horn clean and dry. Check the clamp regularly to ensure it's tight. Also, remember that the clamps and knobs are white, even if they look red in the pictures.