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Garmin

Garmin 010-12843-00 Speed Sensor 2, Bike Sensor to Monitor Speed, Black

  • Based on 5,210 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Oct 1
Order within 11 hours and 16 minutes
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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, youll 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.

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.

Brand: Garmin


Color: Multi


Product Dimensions: 3.25"L x 1.25"W x 0.25"H


Item Weight: 1 g


Sensor Type: Speed Sensor


Sensor Type: Speed Sensor


Battery Type: Lithium Manganese Dioxide


Connectivity Technology: Bluetooth, Wireless


Mounting Type: Flange Mount


Human Interface Input: Buttons


Item Dimensions L x W x H: 3.25"L x 1.25"W x 0.25"H


Item Weight: 1 g


International Protection Rating: IP54


Color: Multi


Brand Name: Garmin


Model Number: GMS84300


Included Components: Speed Sensor


Unit Count: 1 count


Manufacturer: Garmin


UPC: 753759222536


Global Trade Identification Number: 36


Number of Packs: 1


Number of Items: 1


Item Type Name: Speed Sensor


Warranty Description: 1 year limited warranty


Manufacturer Part Number: 010-12843-00


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Works when it Works
I use this on a 29" mountain bike rear tire for indoor winter training on a bike trainer. Pro, Con, and Resolution. Pros: Reports a consistent speed that I believe feels appropriate to my road riding. There is no weird highs/lows. Paired quickly with Garmin 645 and Garmin Connect. Cons: You can find all over the web that if you spin the hub it does not wake up and I can agree as I wanted to throw it against the basement wall and was ready to return it. I had to keep removing the device, then remove the battery and put it back in, and then reattach the device. Resolution: What I found out...I was so very frustrated when it would turn on when I moved the bike on the floor (two rotations) and it would NEVER turn on when it was on the trainer. When I would disengage the tension on the wheel it would work when it spun free. What I realize and highly believe is with knobby tires on a mountain bike it generate lots of vibration in the wheel that must mess with what I assume is the accelerometer. I think it is looking for a specific curve and it gets lost in the vibration. Still is not a good thing to disable and then reenable the tension to get it to work but at least I know and do not need to mess with the battery. Wish: If Garmin would be listening...a press to turn on would be great to avoid this whole issue of not waking up. Or just sense vibration not rotation because there should be a way to firmware update that. ... show more
Reviewed in the United States on January 11, 2023 by iRunMG
    • Easy to Install
Easy to set up and install. Anybody who has any gripes about using this thing is too picky. It went on the hub in 5 seconds, paired it through ANT+ to my Garmin smartwatch, set my wheel diameter and right away it was available in a tracked activity to show my speed and generate charts at the end of the workout. Works flawlessly. ... show more
Reviewed in the United States on January 2, 2023 by Matt
    • Quick delivery.
zShould work well!!!
Reviewed in the United States on January 28, 2023 by John
    • 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. ... show more
Reviewed in the United States on September 19, 2022 by RKO
    • Helpful Product
This is a helpful product, but only if you can get everything to sync. First, you need a compatible device (mine is a Forerunner 935) since the Garmin app alone is not enough. The app is easy to sync but only tracks time. A device, once synced, will track calories and distance too. It comes with virtually no instructions, so I had to research synching my watch. The product works, and the app reads the battery as fine, but the red light blinks a lot. So, I don’t know how long this original battery will last. Just from training for years, I think the speed tracking is a bit slow, but that will just make me work a little harder. If you have an indoor bike used during inclement weather, like me, and are in training, this product will help. ... show more
Reviewed in the United States on August 30, 2022 by sabs
    • Great little data gatherer :)
Review Image by Ryan Dubbs Ryan Dubbs
Seems pretty accurate. I'm a data nut so this is great for viewing info after a ride or even while on it. Paired flawlessly with both my Garmin edge 530 and my Garmin Epix 2 watch.
Reviewed in the United States on December 4, 2022 by Ryan Dubbs Ryan Dubbs
    • Product works well
Was not sure about trying used part but have had this for month and it works likes new Good product but slow on shipping.
Reviewed in the United States on December 3, 2022 by Tony
    • works okay with different app
Well the Garmin speed sensor 2 does not work well with Garmin connect, but it works real good with wahoo app and for the price it's okay.
Reviewed in the United States on October 22, 2022 by Curt serles

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