BioLogic Blast Airhorn

4.42 out of 5 based on 12 customer ratings
(12 customer reviews)

$ 34.95

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  • When a bell just isn’t enough
  • Delivers up to 115 decibels of sound
  • Fully adjustable volume control
  • Refillable with any regular bicycle pump
  • 30-50 blasts from one charge
  • Weighs less than 100 g
SKU: B.00003.0032.00.00 Categories: , , ,

When you’re riding in traffic, sometimes a bell just isn’t enough. So make yourself heard above the din with the BioLogic Blast airhorn, a safety airhorn that operates on compressed air and which can be refilled with any regular bicycle pump.

The Blast can produce up to 115 decibels of air-piercing sound to warn off motorists or make your presence known while cycling busy city streets. A quick-release mount allows easy removal for use off the bike and prevention of theft.


  • Blast airhorn and air bottle
  • Mounting clamp and rubber shims
  • Velcro mounting pad and ties
  • Packaging strap / pant cuff strap

12 reviews for BioLogic Blast Airhorn

  1. 5 out of 5

    (verified owner):

    I cycle daily to work in Kuala Lumpur, Malaysia. A bell simply isn’t loud enough to warn traffic of your presence especially as all vehicles have windows wound up for air-conditioning. After a few near misses, I looked for a suitable alternative and found this. Ordered one and fixed it to my Verge Tour which I use for daily commute as its so robust and comfortable. Very simple to set up on the bike. It really works well and has helped me warn traffic a few times already. I liked it so much I got another one to put on my Link D16 as well as I sometimes use that for commuting too! Highly recommended

  2. 5 out of 5


    Lo máximo! The Best! I never think about use it. But!! It sounds great! Make me feel more sure in the middle of The trafic!

  3. 4 out of 5


    Perfect for cars in a city ride but for people the little bells is the best. They don’t identify this sound with a bike.

  4. 5 out of 5

    (verified owner):

    I bought one of these horns a few years ago and got great results with it. Cars apparently don’t expect such a loud noise to come from a bike, so they give a better response. I had a driver complain about the sound after she slammed on he brakes while making a right turn in front of me against a red light. So sorry!

    I really don’t need to use it often for safety reasons, but it’s really good to have at the times I *do* need it. It’s also nice occasionally to be able to “give back” when a car honks at me simply because I’m on a bike in the street.

    A couple minor observations, which do not alter my 5-star rating but which offer suggestions for product improvement:
    1) The screws for the mounting bracket should be made of stainless steel; mine corroded after use in wet weather.
    2) Spare mounting brackets should be available, or even included with the horn. Mine broke during the third year of use, rendering the horn useless. The brackets are made of plastic that is not possible to glue. They can’t cost more than a few cents to make.
    Nevertheless, I’ll buy another horn… the safety considerations make it worthwhile even if it only lasts a few years.

  5. 4 out of 5

    (verified owner):

    Great product. Would love to have something better than the velcro pad and these little bands, but you get what you pay for…
    Also, the entire setting of (-) to third of the way to the (+) doesn’t give any sound, only a soft air “woosh” out the horn.

  6. 5 out of 5

    (verified owner):

    This item is great, but I do wish came with one or two more straps, or something better than these little bands.

  7. 3 out of 5

    (verified owner):

    Nice and loud but it was made to mount on small diameter handlebars and I had to add an adapter to make it work.

  8. 5 out of 5

    (verified owner):

    Excellent Gear to warn someones, who ignore your bicycle bell, and scare them away from your path. As the whole thing is made by plastic, I wonder if it is durable under great air pressure. BTW. it is a great thing.

  9. 4 out of 5


    Could come with one or two more straps to fix at the bike but, overall, very good!!!

  10. 5 out of 5


    It works great! Scared my wife pretty good, I should it work well on cars too.

  11. 4 out of 5


    It’s a excellent product, powerful and without batteries, adjustable and discret. Nothing to add except maybe, that in case of emergency you don’t have time to push any horn !…

  12. 4 out of 5


    Good product well designed with a nice blast, but not for the careless youngster. In the traffic to be really efficient it would’ve been great to have the following sound pressures @ 1m for either of the blast frequencies:
    ->120dB if frequency between 180 & 450 Hz
    ->115dB if frequency between 450 & 800 Hz
    ->110dB if frequency between 800 & 2100Hz
    The spec states: Delivers up to 115 decibels of sound. But at what frequency & how far from the horn?
    It is also stated: Fully adjustable volume control. But how?

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