---
product_id: 502508382
title: "Hornit dB140 Bike Horn | Loudest Bicycle Horn | Adult Electric Bike Bell | V3 |"
brand: "hornit"
price: "$128"
currency: NZD
in_stock: true
reviews_count: 13
category: "Hornit"
url: https://www.desertcart.nz/products/502508382-hornit-db140-bike-horn-loudest-bicycle-horn-adult-electric-bike
store_origin: NZ
region: New Zealand
---

# 2 horn modes - piercing & car horn style 140dB - World's loudest horn 2 Garmin-style mounts - fits all handlebars Hornit dB140 Bike Horn | Loudest Bicycle Horn | Adult Electric Bike Bell | V3 |

**Brand:** hornit
**Price:** $128
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Make your presence impossible to ignore with the loudest bike horn on the planet!

## Quick Answers

- **What is this?** Hornit dB140 Bike Horn | Loudest Bicycle Horn | Adult Electric Bike Bell | V3 | by hornit
- **How much does it cost?** $128 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/502508382-hornit-db140-bike-horn-loudest-bicycle-horn-adult-electric-bike)

## 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

- • **Stress-Free Commutes:** Say goodbye to shouting and emergency stops—ride confidently knowing you’re noticed.
- • **Dual Tone Versatility:** Switch between a high-pitched duo-tone for roads and a softer car horn style for parks and trails.
- • **Unmatched Safety Alert:** 140dB piercing sound cuts through city noise, ensuring you're heard by drivers and pedestrians alike.
- • **Universal Handlebar Fit:** Includes two Garmin-style mounts with multiple spacers to perfectly fit any bike handlebar size.
- • **Effortless One-Hand Operation:** Quick, intuitive button design lets you alert others without losing control of your ride.

## Overview

The Hornit dB140 V3 is the world’s loudest bicycle horn, delivering a powerful 140dB sound to maximize rider safety. Featuring two distinct horn modes tailored for urban and trail environments, it comes with versatile Garmin-style mounts to fit all handlebar sizes. Lightweight and easy to install, this electric bike bell offers one-hand operation, making it an essential accessory for professional commuters and cycling enthusiasts who demand both safety and style.

## Description

Shop Hornit dB140 Bike Horn | Loudest Bicycle Horn | Adult Electric Bike Bell | V3 |. Free delivery and returns on all eligible orders.

Review: THAT IS LOUD! Loved it - THAT IS LOUD! If you're a commuter, it could save lives! Batter lasts long, easy to install on the bike and it fits a big variety of handlebars, the button works fine, it really alerts people and cars, very loud, the loudest I ever had considering the battery and size. Really recommend it.
Review: Yes, its loud! - This is certainly loud! Two tones to choose from, but the actual hooter noise does the job, it gets peoples attention. Simple to fit, and does not take up too much room.

## 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 GARMIN 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 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09LDF9KMQ |
| Age range | Adult |
| Batteries | 2 AAA batteries required. (included) |
| Batteries included? | Yes |
| Best Sellers Rank | 11,031 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 31 in Bike Bells |
| Brand | Hornit |
| Color | Black |
| Compatible with | Headphones |
| Customer Reviews | 4.4 4.4 out of 5 stars (887) |
| Date First Available | 28 Oct. 2021 |
| Department | Unisex |
| Features | One-Hand Operation |
| Item model number | dB140 V3 |
| Manufacturer | Hornit |
| Material type | Plastic |
| Number of items | 1 |
| Product Dimensions | 9.78 x 4.83 x 4.19 cm; 102.06 g |
| Size | One Size |
| Sport | Cycling |
| Style | V3 |

## Product Details

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

## Images

![Hornit dB140 Bike Horn | Loudest Bicycle Horn | Adult Electric Bike Bell | V3 | - Image 1](https://m.media-amazon.com/images/I/71maawYu8NL.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

### ⭐⭐⭐⭐⭐ THAT IS LOUD! Loved it
*by V***N on 2 June 2025*

THAT IS LOUD! If you're a commuter, it could save lives! Batter lasts long, easy to install on the bike and it fits a big variety of handlebars, the button works fine, it really alerts people and cars, very loud, the loudest I ever had considering the battery and size. Really recommend it.

### ⭐⭐⭐⭐⭐ Yes, its loud!
*by D***F on 19 December 2025*

This is certainly loud! Two tones to choose from, but the actual hooter noise does the job, it gets peoples attention. Simple to fit, and does not take up too much room.

### ⭐⭐⭐⭐⭐ Very loud, very good
*by A***R on 10 June 2025*

I have had this for a couple of months now, riding on everything from urban residential roads, to cycle ways and bridle paths. It is an excellent product, very loud (in both sound modes) and seems more than adequate to get the message across to both pedestrians and all other road users. In addition, it's worth noting that the switch (which you put on the handlebar or grip) is easy to use while wearing gloves, something that has been a problem for me with other more conventional bell designs. If you get one of these, put the batteries in and take it outside before testing... you might be surprised how loud it is in your front room!

## Frequently Bought Together

- Hornit dB140 Bike Horn, Upgraded V3 Model, World's Loudest Bicycle Horn for Increased Rider Safety, Remote Trigger and Upgraded Mounting System Included
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**Shop now:** [https://www.desertcart.nz/products/502508382-hornit-db140-bike-horn-loudest-bicycle-horn-adult-electric-bike](https://www.desertcart.nz/products/502508382-hornit-db140-bike-horn-loudest-bicycle-horn-adult-electric-bike)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-24*