the loud bicycle horn
in the language
all road users know

Loud Bicycle horns are loud.

We harness the sound power of a car horn in a package fit for a bicycle. Both of our Loud Bicycle horn models honk at 125 decibels, as loud as a fireshows show. Every honk contains two distinct and individually-tuned tones.

Our battery life can't be beat.

Loud Bicycle has a fully-rechargeable battery that can last over three months on a single charge, and can plug into any USB port.

Durable. Weatherproof. Water-resistant.

Loud Bicycle horns are for use in all weather, including rain, snow and cold down to 20ºF (-6ºC).

Loud Bicycle is made in the USA.

Our horns are designed in Boston, Massachusetts and manufactured in New Hampshire.

Loud ClassicLoud MiniDroid Horn
Weather Resistance
Charging Port
Battery Life
Starting at$145$149$349
Shipping2-3 Days2-3 Days

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How does it work?

Honking with your thumb is easy and won't interfere with braking. The button attaches easily to either handlebar and the wire plugs into the bottom of the case.

Loud Mini

loud bicycle mini

The Loud Mini is our newest horn. We took trusted components from Loud Classic, and we fit them into an elegant shell that is nearly half the weight of the original Loud Classic – and it is still just as loud and still sounds just like a car. The USB-rechargeable battery lasts 4 months (480 seconds of honking); that's twice as long as the Loud Classic.

loud bicycle mini collage

loud bicycle mini easy release

The Loud Mini fits all handlebars, and with an easy release mechanism, you can use one horn on several bikes. The Loud Mini is water resistant and can be used all day and night, in rain and snow.

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  • Loudness: 125 dB.
  • Water resistant, all-weather construction.
  • Weight: 0.9 lb (410 grams).
  • Rechargeable battery life: 4 months.
  • Charging port: Mini USB.
  • Easy release mount with security screws option.
  • Mounting is compatible with GoPro®.
  • Dimensions: 6x4x2.5 inches (15x10x6 cm).

Loud Classic

loud bicycle horn classic

The Loud Classic horn is our first generation product. While heavier than the Loud Mini it is lighter than a U-lock. It can attach to the top tube, down tube or stem with 4 hex screws or security screws.

loud bicycle on bike
classic loud bicycle

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  • Loudness: 125 dB.
  • Water resistant, all-weather construction.
  • Weight: 1.6 lb (761 grams).
  • Rechargeable battery life: 2 months.
  • Charging port: Mini USB.
  • Fits on standard stems, top or down tubes less than 1.5in (3.8cm).
  • Extra secure security screws option.
  • Dimensions: 6x4.5x4 inches (15x10x10cm).

Loud Accessories

Our horns come with everything you need: The horn itself, a button with a 2.5 ft. button cable, a mini USB charging cable, and a way to mount the horn to a bike. Here are a few extras you can add on.

loud bolts

Security screws

Leave your Loud Bicycle horn securely on your bike with special security screws. These come with the special tool needed to install and remove the screws. You will receive the standard bolts in addition to the security screws.

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loud charger

Wall charging block

A standard Mini USB charger between 0.5A-0.9A or your computer's USB port will charge your horn. Get the Loud Bicycle wall charger and don't worry about any of that. Intended for use with the Mini USB cable included with your horn.

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loud extension

Button extension cable

The horn button comes with a 2.5 ft. (76cm) cable which fits most bikes. You can extend the distance from the button to the horn by an additional 2.5 ft. (76cm) with each cable extension.

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loud mount

Extra bike mount

This accessory for the Loud Mini gets you an extra mounting set so you can quickly swap between bikes without removing and reattaching the mount.

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loud button

Extra button

Each horn comes with a button, but you can also get an extra one. The extra button works with the Loud Mini and the Loud Classic horns.

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Recommended package: Loud Mini & Security Screws

Every Loud Bicycle horn comes with everything you need, but this package also comes with special security screws to keep your Loud Mini safe from theft.

Total USD: $169

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Custom order (free shipping on domestic horn orders):

New and improved horn

Loud Mini (black) $149
Loud Mini Security Screws $20
Loud Mini Extra Bike Mount $15

Shared Accessories

Wall Charging Block $10
Button Extension Cable $10
Extra Button $15
First generation horn

Loud Classic $145
Loud Classic Security Screws $15

Want to get loud soon? Order now for shipment in

Total USD: $ 0

Checkout and Get Loud

Trouble ordering? Try our Basic Loud Bicycle Store.

Droid Horns

We are working with the traffic droid from England to create a bicycle horn that sounds like a truck horn. Sign up for the mailing list below to find out right away when it becomes available.

Get behind-the-scenes updates

© Loud Bicycle, Inc. 2020.
All rights reserved.
Loud Bicycle, Inc.
50 Milk St.
Boston, MA 02109