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๐ดโโ๏ธ Ride Smarter, Not Harder โ Speed Sensor 2 Keeps You Ahead of the Pack!
The Garmin Speed Sensor 2 is a sleek, wireless device that mounts easily on your bikeโs wheel hub to deliver precise speed and distance tracking. Featuring Bluetooth and ANT+ connectivity, it syncs effortlessly with Garmin devices and popular training apps, supporting both indoor and outdoor cycling. Its self-calibration and odometer functions ensure accurate data and help you maintain your bike optimally, all powered by a long-lasting lithium battery with IP54 water resistance.

| ASIN | B07PJKZ7G9 |
| Battery Cell Composition | Lithium Manganese Dioxide |
| Battery Type | Lithium Manganese Dioxide |
| Best Sellers Rank | #72,677 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #8 in Speedometers |
| Brand | Garmin |
| Brand Name | Garmin |
| Color | Multi |
| Connectivity Technology | Bluetooth, Wireless |
| Customer Reviews | 4.5 out of 5 stars 5,194 Reviews |
| Global Trade Identification Number | 00753759222536 |
| Human Interface Input | Buttons |
| Included Components | Speed Sensor |
| International Protection Rating | IP54 |
| Item Dimensions L x W x H | 3.25"L x 1.25"W x 0.25"H |
| Item Type Name | Speed Sensor |
| Item Weight | 0.08 Kilograms |
| Manufacturer | Garmin |
| Manufacturer Part Number | 010-12843-00 |
| Model Number | GMS84300 |
| Mounting Type | Handlebar Mount |
| Product Dimensions | 3.25"L x 1.25"W x 0.25"H |
| Sensor Type | Speed Sensor |
| UPC | 753759222536 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 year limited warranty |
A**S
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.
M**.
Best affordable bike speedo
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!
R**O
Be on the lookout for possible counterfeit product.
This is my second Speed Sensor 2 from Amazon. First unit purchased last year. Sold and shipped via Amazon. Sync'd with Gamin Connect app. Upgraded firmware. Using the sensor with a 3rd party cycling computer. Zero issues. The second unit I purchased was sold by a 3rd party vendor and shipped by Amazon. I had all sorts of problems with this unit. Problem #1. The unit came up on Garmin Connect app with an odd name. The correct name should be Speed Sensor 2. This unit came up as BSG 2 SPD(?). (I'm not 100% certain what the name was. The unit has already been returned to Amazon.) Problem #2. I could not update the firmware on the sensor. Tried multiple times, got multiple failures. Problem #3. I tried sync'ing the sensor to my cycling computer and it would sporadically send speed info. I have this weird feeling that this is some sort of counterfeit product. Problem #1 and #2 are dead giveaways for counterfeit products. I wrote this review to alert potential buyer to be on the lookout for counterfeit products. My overall rating is based on the legit Speed Sensor I purchased last year. It really works well.
W**O
Bicicleta ๐ดโโ๏ธ
Funciona muy bien ๐
J**O
Light, affordable, and easy to install
Got this for my phone and Garmin Edge 25 computer. Sensor is slightly cheaper than Wahoo sensor. Item was easy to install but the rubber mount is pretty thin and while it doesnโt feel cheap I am curious to see how long it lasts. The sensor itself is very light and was very easy to pair with my phone via Bluetooth. Pairing with my Garmin Edge 25 was a tad tricky and did require me to reset my computer initially to pair correctly. Initially the accuracy seemed a tad off but after a few rides it seemed to calibrate itself. I will say the speed read out is a tad slow to update. When cycling and coming to a full stop the computer still will read MPH if I wear cycling at a very low speed for a moment. Overall probably not 100% needed if you have a computer but could be more accurate especially in areas with poor GPS signal
M**E
Exactly what I needed
Connected right away with a strong signal. I use this with a resistance trainer for Zwift and it works perfectly. I bought this to replace a cheap, off-brand sensor that I got bundled with a trainer. I absolutely love the trainer, but the speed sensor had terrible battery life and stopped working after 350 miles. So far so good with this one. I have high hopes. I've had nothing but good experiences with Garmin. I LOVE my 935. It's never let me down during triathlon training and I'm sure this sensor will be no different.
A**C
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.
H**B
Easy to install, easy to use.
I purchased this as a replacement for the previous version of Garmin speed sensor. Not that the old one is broken, but it needed a magnet attached to a spoke for it to work, so it became inflexible. This one just attaches around the hub is easy to install and move to different bikes/wheels without any tools. Pairing it to a bike computer or watch is also very easy, and it self calibrates for wheel size. Very happy.
G**I
Ottimo
Prodotto secondo le mie aspettative Ottimo si collega facilmente allo smartphone e al mio garmin ottimo per lโallenamento indoor
B**S
As described
as described. fast postage
M**S
Recomiendo
De la mejor calidad
D**D
Instructions not great but it's good once you get it working
This is a good device, it's easy to attach to the bike and very simple to use. The manual seems to expect you to already know what you're doing so personally I'd search the web for some help setting up. I did, and I'm fine. It does work with the phone app but for best results you should definitely interface it directly with your Garmin device - ie smart watch. I have a Vivoactive 3 and it's a great companion to give me speed monitoring when I'm using my bike trainer indoors. Remember that it takes 2 rotations to switch on. So when training, jump on your trainer, do a few pedal strokes and stop... then set your watch running.
V**E
Speed
It synced to my Garmin unit and now I have precise speed data
Trustpilot
2 days ago
1 week ago