YS SY Bicycle Speedometer and Odometer Wireless Waterproof Cycle Bike Computer with LCD Display & Multi-Functions
$20.98
Price: $20.98
(as of Apr 26, 2025 17:21:36 UTC – Details)
Speedometer and Odometer Wireless Waterproof Cycle Bike Computer with LCD Display & Multi-Functions by YS
【Auto Wake-up Function】Automatically wakes from sleep mode upon sensing vibration in the bicycle. Bright LCD display to easily view ride statistics.
【Multi-functions】Small size, light weight, wireless, waterproof design makes it convenient and durable. This bicycle computer measures speed, distance, and riding time. Exactly what any serious bicyclist or fitness fanatic needs to know for stats tracking.
【Day & Night Backlight 】Provides backlight for easy viewing during dark hours. The backlight will automatically turn on when any button is pressed between 18:00 and 06:00. Please note the slight rattle sound from device is normal phenomenon, which results from the design of wireless automatic function.
【Easy to Install &Use】Simple installation that only takes a few minutes. Easy to navigate interface with only two buttons to access all measurements. Customizable to most common tyre sizes for accurate stats tracking.
【Applicable】Road bicycles, mountain bikes, folding bikes,and other common bicycles are compatible with this bicycle computer. This bicycle computer MAY NOT be compatible with some electric-assist bicycles. If the computer display, sensor, and magnet can be installed within the specified distances device should be fully compatible. Please do not hesitate to contact us with any questions.
Customers say
Customers find the cycling computer effective for tracking speed and distance, with extremely accurate wireless readings. The installation process receives mixed feedback – while some find it super easy to install, others note that the instructions are written in poor English. The functionality and value for money also get mixed reviews, with some saying it works well and is good for the price, while others report it stops working after an hour and consider it not worth purchasing. The build quality is mixed, with some describing it as reliable while others find it poorly engineered, and customers disagree on the accuracy of speed readings. The size receives negative feedback, with several customers noting it’s too small and doesn’t fit their bikes.
AI-generated from the text of customer reviews
13 reviews for YS SY Bicycle Speedometer and Odometer Wireless Waterproof Cycle Bike Computer with LCD Display & Multi-Functions
Add a review
Related Products
![Lamicall Bike Frame Bag Waterproof – [1s Release] [2 in 1] Bike Phone Bag, Bike Phone Holder Mount, Bicycle Top Tube Bag, Cycling Pouch with Rain Cover, Bike Accessories for Phones Under 7″](https://m.media-amazon.com/images/I/71VKkKd2xtL._AC_SL1500_.jpg)
$20.98
I-Buy-A-Lot-Of-Stuff –
Easy to install.
My father-in-law recently purchased an electric scooter and he wanted to know how fast he was moving up and down the sidewalk.
At times he has a hard time installing small items like this but he didnât have any issues doing it by himself.
He said itâs been pretty accurate, and the battery life has been really good as well.
Display size is good and heâs able to read and understand the screen. Good item for a part time speedster.
T. Geery –
Totally unreliable. I wouldn’t buy this again.
Update: After messing with this thing for several weeks I find it to be completely unreliable. It’ll read great one day and the next day it will vary between showing zero MPH and 15 MPH. I don’t know if the cell phone that I carry interferes with the wireless signal or what but this thing does not work well at all. What I wrote below was how I felt in the middle of my trials.
The physical installation is not difficult – tie wraps and such. No big deal. What is difficult is working out the distances along with the particular configuration of your bike.
The distance from the computer to the sensor is critical. You get beyond or even close to the 60cm distance from the computer to the sensor and you will get very erratic readings or no readings at all. Same with the 3mm distance between the sensor and magnet. 3mm is about 1/8 of an inch!
I have a trail bike with wide forks. That presented an issue in getting the sensor close to the magnet AND also having the sensor not too far away from the computer. I had to try about 8 or 10 configurations where I finally ended up with the sensor tie wrapped on the INSIDE of the fork up close to the brakes (had to keep within the 60cm distance from sensor to computer) which allowed me to get the sensor and magnet within the 3mm distance as well.
Once I got those distances happy and figured out how to mount the sensor in the wide fork spacing, everything worked great! Nice features on the computer and you can tune the wheel diameter to get the mileage distance more accurate.
Linda L. Vandigo –
Love the Gift
My nephew loves the speedometer.
Amazon Customer –
For the money…
For the money, this unit is great. I’ve only had it installed a few weeks and it has performed trouble free. Installation was simple (aside from a manual with the smallest font on earth. The display is clear. For a simple no-frills speedometer/odometer it seems like a good choice.
Bryan knapp –
cool speedometer
These are pretty cool I got like six bikes got one on every bike no complains if you are manual pedal fewer electric a few are gas powered the gas powered ones have to have a direct wire running down to the sensor the wireless ones pick up the spark plug fire and will throw you off might be going 20 mph just sitting an idling
MICHAEL L. BURNS –
Instructions were terrible and way too small.
YouTube saved the day for instructions. No user friendly, not even for these YouTubers, but it’s 80% programed for what I need.
Amazon Customer –
Easy to use bicycle speedometer
It was very easy to set up and install the unit on my bike. I had an older one that broke, so I was used to how they work, but also had some old routes that I used, and the mileage was the same, so I would say that the accuracy is good. It is a smaller device than the previous one, but the display is bright and easy to read. Switching between screens is a push of a button, so no issues scrolling through the different screens.
Cindy Bryan –
Doesn’t work on rear forks while mounted to handlebars
Might be fine if it were going onto the front forks. But considering we’re putting it on the rear for a trainer’s use, it won’t pick up the results of the sensor on the handlebars. Apparently, it needs to be VERY close to the sensors in order to actually pick them up. Didn’t try it on the front forks, but my guess is that if you were using it on front wheel and mounting on handlebars as instructions say, it would be able to pick up the sensors. I can’t comment much on the rest of the features or how accurate they are, since I didn’t put it where recommended.
Adam LeMoine –
Turns itself off when not in use to save battery life. Light weight , easy to read. Easy to set up. Lots of information besides the Mph/Kph.
Trevor J. –
Bought 2 of them and 1 wasn’t accurate, got refund
Richard Bussiere –
Easy to install, precise, all the required modes are there including current time. Automatic start/stop. Everything is included. Choice of colors is a plus too. Won’t register speed or distance below 40°F, this is annoying! One day delivery.
arrows away –
easier Installation Makes Wires No
Daniel P. –
Livraison rapide et efficace produit correct pour le prix