---
product_id: 386595768
title: "Hornit dB140 Bike Horn, Upgraded V3 Model, World's Loudest Bicycle Horn for Increased Rider Safety, Remote Trigger and Upgraded Mounting System Included"
brand: "hornit"
price: "$78.26"
currency: USD
in_stock: true
reviews_count: 5
category: "Hornit"
url: https://www.desertcart.us/products/386595768-hornit-db140-bike-horn-upgraded-v3-model-worlds-loudest-bicycle
store_origin: US
region: United States of America
---

# Dual horn modes for versatile alerts 140dB jet-engine loudness Universal mounts fit all handlebars Hornit dB140 Bike Horn, Upgraded V3 Model, World's Loudest Bicycle Horn for Increased Rider Safety, Remote Trigger and Upgraded Mounting System Included

**Brand:** hornit
**Price:** $78.26
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Be heard, be safe, be unstoppable.

## Quick Answers

- **What is this?** Hornit dB140 Bike Horn, Upgraded V3 Model, World's Loudest Bicycle Horn for Increased Rider Safety, Remote Trigger and Upgraded Mounting System Included by hornit
- **How much does it cost?** $78.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/386595768-hornit-db140-bike-horn-upgraded-v3-model-worlds-loudest-bicycle)

## Best For

- hornit enthusiasts

## Why This Product

- Trusted hornit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Alert Modes:** Switch between a high-pitched duo-tone for roads and a car-horn style for trails.
- • **Effortless Control:** Remote trigger lets you sound the horn safely without losing grip or braking power.
- • **Long-Lasting Power:** Up to 12 months of use on 2 AAA batteries—reliable safety without constant recharging.
- • **Unmatched Loudness:** 140dB piercing sound cuts through city noise—be impossible to ignore.
- • **Universal Fit & Swap:** Two mounts included for all handlebar sizes—swap your horn between bikes in seconds.

## Overview

The Hornit dB140 V3 is the world's loudest bicycle horn at 140dB, designed to dramatically increase rider safety by alerting distracted drivers and pedestrians. Featuring two distinct horn modes, a remote trigger for safe operation, and universal mounting options, this sleek, weatherproof device ensures cyclists are heard in any urban or trail environment. Powered by 2 AAA batteries lasting up to a year, the dB140 is a must-have for stress-free, confident riding.

## Description

The upgraded dB140 is the loudest cycle horn on the market, putting you in control of your safety by letting people know you’re there. It’s small, sleek and enables you to alert distracted drivers and pedestrians to your presence. Featuring improved internal components and a brand-new style mount developed, your dB140 is better than ever: rock solid on the bars, easy to remove and interchangeable with other compatible devices. THE WORLD'S LOUDEST CYCLE HORN: 140 decibels is the equivalent sound of a jet engine and is 4 times louder than the nearest competitor. You can alert drivers of cars, buses, lorries & pedestrians to your presence. It has two sounds - a piercing 'road' mode (140dB) and a lower pitched car horn sound (121dB) for cycle paths. The remote trigger means it is safe and easy to use when braking, while being easy to install and remove thanks to the detachable style mount, the dB140 fits all bikes. Completely weatherproof (although not submersible), the dB140 is a potentially life-saving accessory when riding in towns and cities. TWO UPDATED STYLE MOUNTS INCLUDED: To ensure a perfect fit with all handlebar sizes two mounts are included - one mount for bars with a diameter of 22-26mm with 4 differently sized spacers and a second dedicated 31.8mm diameter bars (road bikes). You can use your spare mount on a different bike so you can easily swap the dB140 from one bike to another. IMPRESSIVE PERFORMANCE: Featuring two horn modes; 140dB and 121dB respectively, the dB140 requires uses 2 x AAA batteries which last for up to 12 months of normal use (6x 1 second blasts per day). The dB140 makes riding in town safer and less stressful: no need to shout, no need to swerve, no more emergency braking. Ride safely. According to ROSPA, 57% of cycle accidents occur because the "driver failed to look properly". To put this another way, if cyclists used horns to alert drivers to their presence it would prevent more than half of all serious cycle accidents. Be heard. Choosing to ride a bicycle shouldn’t mean sacrificing your safety. All other road vehicles must have a horn by law. That’s where the dB140 comes in. Equipping cyclists with a horn that can be heard by all road users, the dB140 ensures you’re always heard. Always ready. A critical part of the design, the remote trigger ensures you can operate the horn and brake simultaneously. Simply fit the remote trigger where your thumb rests on the bars. Enjoy the ride. The dB140 gives you the ability to let other road users know you’re coming and that alone makes cycling much less stressful. No more shouting, fewer emergency stops and more time spent enjoying the ride.

Review: Bra ljud
Review: Je n'ai pas eu de difficulté à l'installer. Le mode d'emploi était clair d'en mes souvenir. Après plusieurs mois d'usage, rien à signaler d'alarmant. Dommage que qu'on ne peut pas gérer le volume car c'est vraiment fort fort bruyant même pour le cycliste.

## Features

- The World's loudest cycle horn. 140dB at source the dB140 puts you in control of your safety because it gives you a way to make people know you’re there even when they aren’t looking.
- Two horn modes. “piercing mode” is a high-pitched 140db duo tone, primarily for road use, designed to be heard by car, van and truck drivers as well as pedestrians with headphones. “horn mode” is a 121dB car horn style sound designed to be used to warn pedestrians in parks and on trails.
- Two handlebar mounts included. to ensure a perfect fit with all handlebar sizes two mounts are included-one mount for bars with a diameter of 22-26mm with 4 differently sized spacers and a second dedicated to 31.8mm diameter bars (road bikes).
- Enjoy the ride. the dB140 gives you the ability to let other road users know you’re coming and that alone makes cycling much less stressful. No more shouting, fewer emergency stops, and more time spent enjoying the ride.
- The small, sleek, and completely weatherproof horn weighs only 3.6 ounces (including mount, trigger, and batteries). 2 x AAA batteries included which last up to 12 months with normal use (normal use is 6 x 1 second blasts per day).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09LDF9KMQ |
| Batteries | 2 AAA batteries required. (included) |
| Batteries Included? | Yes |
| Best Sellers Rank | #37,886 in Sporting Goods ( See Top 100 in Sporting Goods ) #21 in Bike Horns |
| Brand | Hornit |
| Color | Black |
| Compatible with | Headphones |
| Customer Reviews | 4.3 4.3 out of 5 stars (886) |
| Date First Available | 24 November 2021 |
| Department | Unisex-Adult |
| Features | Rotatable |
| Included Components | Hornit dB140 V3 Horn, Remote Horn Trigger, Two Handlebar Mounts, x2 AAA Batteries |
| Item model number | dB140 V3 |
| Manufacturer | Hornit |
| Material Type | Plastic |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Product Dimensions | 9.78 x 4.83 x 4.19 cm; 102.06 g |
| Size | dB140 V3 |
| Sport | Cycling |
| Style | dB140 V3 |

## Product Details

- **Brand:** Hornit
- **Colour:** Black
- **Material:** Plastic
- **Size:** dB140 V3
- **Style:** dB140 V3

## Images

![Hornit dB140 Bike Horn, Upgraded V3 Model, World's Loudest Bicycle Horn for Increased Rider Safety, Remote Trigger and Upgraded Mounting System Included - Image 1](https://m.media-amazon.com/images/I/71maawYu8NL.jpg)
![Hornit dB140 Bike Horn, Upgraded V3 Model, World's Loudest Bicycle Horn for Increased Rider Safety, Remote Trigger and Upgraded Mounting System Included - Image 2](https://m.media-amazon.com/images/I/61ugZP+m1NL.jpg)
![Hornit dB140 Bike Horn, Upgraded V3 Model, World's Loudest Bicycle Horn for Increased Rider Safety, Remote Trigger and Upgraded Mounting System Included - Image 3](https://m.media-amazon.com/images/I/61mTR4Z6paL.jpg)
![Hornit dB140 Bike Horn, Upgraded V3 Model, World's Loudest Bicycle Horn for Increased Rider Safety, Remote Trigger and Upgraded Mounting System Included - Image 4](https://m.media-amazon.com/images/I/718utaVO8xL.jpg)
![Hornit dB140 Bike Horn, Upgraded V3 Model, World's Loudest Bicycle Horn for Increased Rider Safety, Remote Trigger and Upgraded Mounting System Included - Image 5](https://m.media-amazon.com/images/I/71TLYLhyLdL.jpg)

## Questions & Answers

**Q: I'm buying this for a friend of mine who lives in NYC.  I'm worried it will be stolen off his bike though... is this easily removed and stolen?**
A: Yes, you have to remove it a half turn to pull it off to install batteries unplug the button rotated, 180° and stick it in your pocket unless that person gets mugged it won’t get stolen

**Q: Is it possible to get a longer cord? I want to mount it on my seat post facing backwards so I can alert cars coming up behind me.**
A: No idea why Maurice Pinder would take the time to provide you with false information.

“DB140 EXTRA LONG TRIGGER 150CM (5FT)” Hornit most certainly makes a longer trigger. You can easily purchase the item.

**Q: Is it easy to replace the batteries while the horn is mounted or does the horn need to be removed to get to battery compartment ?**
A: Yes it is easy to replace the batteries.  To change the batteries, unplug the thumb button wire, then turn the horn body 90 degrees (quick release) and lift off the handlebar bracket. Replace batteries, then reverse the above procedure. Re-Plug the thumb button wire. The horn works very well and load enough for people to hear you coming.

**Q: Unit works fine, but it sounds like there's a loose piece of plastic inside that rattles around when I shake the unit?  Is that normal?**
A: No! It should not sound like a rattle. If you are very concerned ask if you can return it for a replacement. 
Even if you are passed the return deadline, a reasonable company will allow for a replacement.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***E on 3 November 2024*

Bra ljud

### ⭐⭐⭐⭐ Review
*by R***K on 26 October 2024*

Je n'ai pas eu de difficulté à l'installer. Le mode d'emploi était clair d'en mes souvenir. Après plusieurs mois d'usage, rien à signaler d'alarmant. Dommage que qu'on ne peut pas gérer le volume car c'est vraiment fort fort bruyant même pour le cycliste.

### ⭐⭐⭐⭐⭐ Review
*by R***B on 22 January 2026*

Very very loud. Love it. Saves me swearing at people.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-24*