---
product_id: 131100155
title: "Garmin 010-12843-00 Speed Sensor 2, Bike Sensor to Monitor Speed, Black"
brand: "garmin"
price: "¥21606"
currency: JPY
in_stock: true
reviews_count: 13
category: "Garmin"
url: https://www.desertcart.jp/products/131100155-garmin-010-12843-00-speed-sensor-2-bike-sensor-to
store_origin: JP
region: Japan
---

# Dual Bluetooth & ANT+ connectivity Long-lasting battery life Wireless speed tracking Garmin 010-12843-00 Speed Sensor 2, Bike Sensor to Monitor Speed, Black

**Brand:** garmin
**Price:** ¥21606
**Availability:** ✅ In Stock

## Summary

> 🚴‍♀️ Ride smarter, not harder — speed sensing made sleek and simple!

## Quick Answers

- **What is this?** Garmin 010-12843-00 Speed Sensor 2, Bike Sensor to Monitor Speed, Black by garmin
- **How much does it cost?** ¥21606 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/131100155-garmin-010-12843-00-speed-sensor-2-bike-sensor-to)

## Best For

- garmin enthusiasts

## Why This Product

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

## Key Features

- • **Seamless App Syncing:** Connects via Bluetooth & ANT+ to Garmin devices and popular training apps.
- • **Effortless Wireless Setup:** No magnets or exposed parts—snap it on and go, hassle-free.
- • **Precision Speed & Distance:** Self-calibrate or use Garmin Connect for always-accurate ride data.
- • **Durable & Weather-Resistant:** IP54 rating means reliable performance rain or shine.
- • **Odometer for Smart Maintenance:** Track total distance to optimize bike upkeep and never miss a tune-up.

## Overview

The Garmin Speed Sensor 2 is a compact, wireless device that attaches easily to your bike’s wheel hub to provide precise speed and distance data. Featuring Bluetooth and ANT+ connectivity, it syncs effortlessly with Garmin devices and popular fitness apps, delivering reliable performance indoors and outdoors. With a long-lasting battery and IP54 water resistance, it’s built for durability and convenience, helping cyclists track rides and maintain their bikes with confidence.

## Description

Monitor your speed as you ride with this easy-to-install wireless sensor. With no magnets or other exposed parts to line up, this sensor is easy to install, maintain and move between bikes.

Review: Works great - Works great. Long battery life. Hugs center wheel axle well. Only weird issue is configuring it from my watch looks different than configuring it from app - meaning the wheel size. After reaching out to Garmin, I did a wheel out measurement and inputted that into my watch.
Review: Best Garmin Device Ever - This works great with the app. I first used a Garmin for step counting. Then I got into biking and the steps didn't register. This works great registering bike workouts on the app! The other bike device for motion sold by Garmin doesn't work on the app and you must ONLY buy this one to have the app working with the bike. I love it and use it daily.

## Features

- The speed sensor 2 attaches to the hub of either wheel. You can set up wheel size in our Garmin connect online community or self-calibrate with an edge cycling computer or compatible Garmin device.
- Once set up, you’ll get accurate speed and distance at all times — even without a head unit.
- Ant+ connectivity and Bluetooth Low energy technology Let you sync to Garmin Connect and other training apps, compatible devices and fitness equipment for better data when you ride indoors and outdoors.
- The odometer feature tracks your distance to help plan for bicycle maintenance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07PJKZ7G9 |
| Batteries | 2 Lithium Metal batteries required. (included) |
| Battery Cell Composition | Lithium Manganese Dioxide |
| Best Sellers Rank | #47,986 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #3 in Speedometers |
| Brand | Garmin |
| Color | Multi |
| Connectivity Technology | Bluetooth, Wireless |
| Customer Reviews | 4.5 4.5 out of 5 stars (5,176) |
| Date First Available | April 30, 2019 |
| Department | unisex-adult |
| Global Trade Identification Number | 00753759222536 |
| Human Interface Input | Buttons |
| Included Components | Speed Sensor |
| International Protection Rating | IP54 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.89 ounces |
| Item model number | GMS84300 |
| Manufacturer | Garmin |
| Mounting Type | Flange Mount |
| Other display features | Wireless |
| Product Dimensions | 3.25"L x 1.25"W x 0.25"H |
| Sensor Type | Speed Sensor |
| Special features | Bluetooth |
| UPC | 753759222536 |

## Product Details

- **Brand:** Garmin
- **Color:** Multi
- **Item Weight:** 0.08 Kilograms
- **Product Dimensions:** 3.25"L x 1.25"W x 0.25"H
- **Sensor Type:** Speed Sensor

## Images

![Garmin 010-12843-00 Speed Sensor 2, Bike Sensor to Monitor Speed, Black - Image 1](https://m.media-amazon.com/images/I/51A2EkSkDML.jpg)

## Questions & Answers

**Q: Is it compatible with Garmin Vivioactive 3 watch?**
A: I use both cadence and speed sensors simultaneously with Vivoactive 3 plus a poar chest HR sensors.  They work flawlesly always.

**Q: Does it fit on large hubs like ones found on mountain bikes?**
A: Yes, fits both 29er DT Swiss 350 hubs and 27.5 SRAM Roan 30 hubs on my MTB’s.

**Q: Does it work for Indoor cycling ?**
A: Yes, but with one caveat: mine is mounted on an LNow Spin Bike not around the hub, but flat against part of the wheel cover. Once the device wakes up, it transmits accurately the speed to my Garmin Instinct. My only problem is that the device does not always “wake up” without me having to pull then reinsert the battery. It’s a minor inconvenience but there isn’t really another option for Garmin Connect to capture my distance except to manually input it. I just hot glued the unit to the wheel and set the circumference on my App. Once the device is awake, the unit performs flawlessly. I just wish there was a better way to wake it up.

**Q: Does it mount directly to the wheel or do you need a separate Accessory to attach?**
A: It mounts to the hub

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by A***C on December 15, 2025*

Works great. Long battery life. Hugs center wheel axle well. Only weird issue is configuring it from my watch looks different than configuring it from app - meaning the wheel size. After reaching out to Garmin, I did a wheel out measurement and inputted that into my watch.

### ⭐⭐⭐⭐⭐ Best Garmin Device Ever
*by A***S on June 1, 2025*

This works great with the app. I first used a Garmin for step counting. Then I got into biking and the steps didn't register. This works great registering bike workouts on the app! The other bike device for motion sold by Garmin doesn't work on the app and you must ONLY buy this one to have the app working with the bike. I love it and use it daily.

### ⭐⭐⭐⭐⭐ Best affordable bike speedo
*by M***. on October 27, 2020*

I've tried a few cheaper speedometers for my road bike which is used exclusively on a trainer, including Cat Eye. I did one ride with both devices on and found them to be reasonably close over 15'ish miles. I really love how simple it is and how it immediately syncs up with my watch and the Garmin app. I choose to simply read the output directly on my watch so that I don't need to purchase another screen/monitor device. Works great!

## Frequently Bought Together

- Garmin 010-12843-00 Speed Sensor 2, Bike Sensor to Monitor Speed, Black
- Garmin Cadence Sensor 2, Bike Sensor to Monitor Pedaling Cadence, Black
- Garmin 010-12883-00 HRM-Dual Heart Rate Monitor

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-29*