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YS SY Bicycle Speedometer and Odometer Wireless Waterproof Cycle Bike Computer with LCD Display & Multi-Functions

3.8 3.8 out of 5 stars 4,829 ratings
#1 Best Seller in Speedometers
$19.99 with 23 percent savings
List Price: $25.99

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Purchase options and add-ons

Brand SY
Item Weight 90 Grams
Screen Size 1.2 Inches
Display Type LCD
Sensor Type Speed Sensor

About this item

  • 【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.

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Speedometer and Odometer Wireless Waterproof Cycle Bike Computer with LCD Display & Multi-Functions by YS

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YS SY Bicycle Speedometer and Odometer Wireless Waterproof Cycle Bike Computer with LCD Display & Multi-Functions

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Customer reviews

3.8 out of 5 stars
3.8 out of 5
4,829 global ratings

Customers say

Customers have negative opinions about the size of the cycling computer. For example, they say it's a little too small and hard to see when biking. Some customers also mention that the sensor does not fit a road bike and the pick up unit is very large. Opinions are mixed on quality, mileage tracking, ease of installation, readability, performance, value, and accuracy.

AI-generated from the text of customer reviews

328 customers mention127 positive201 negative

Customers have mixed opinions about the performance of the cycling computer. Some mention that the display unit works fine and is easy to use, while others say that they could not get the unit to work unless it is mounted as seen in their pictures. Some customers also report that the sending unit stopped working, the rest function stopped working and that the wireless components did not work.

"...The readout is ok but within minutes the backlit green display stopped working of course...." Read more

"...figured out how to mount the sensor in the wide fork spacing, everything worked great!..." Read more

"...we started looking at it a little closer and found out it doesn’t turn off automatically. I believe the directions said it would but ours didn’t...." Read more

"...I am sure it is great when mounted on the front wheel but it failed for my application. Not sure if I can return it at this point...." Read more

323 customers mention198 positive125 negative

Customers are mixed about the ease of installation. Some mention it's super easy to install, with good instructions. Others say it'll be difficult to mount and securely fasten.

"Easy to install. Easy to use. I wanted a simple speedometer and odometer...." Read more

"...Also, the magnet if you have single spokes can be difficult to mount and securely fasten as its just a screw type to mount and to try to get within..." Read more

"...The physical installation is not difficult - tie wraps and such. No big deal...." Read more

"Does everything it supposed to no problem at all.Easy to install and operate!" Read more

176 customers mention113 positive63 negative

Customers are mixed about the accuracy of the cycling computer. Some mention that it seems accurate enough, while others say that it wouldn't read speed when they spun the front wheel.

"I love it says how many miles per hour I’m going and how many miles I’ve gone. It’s just a very nice odometer." Read more

"...No big deal. What is difficult is working out the distances along with the particular configuration of your bike...." Read more

"...Unlike other brands that I have used, the signal from the sending unit is strong...." Read more

"...On the rollers, it let's me know how far I've ridden. This computer is a great, bare-bones computer...." Read more

133 customers mention54 positive79 negative

Customers are mixed about the quality of the cycling computer. Some mention it has a lot of functions, but it's a little complicated to use. They appreciate the nice features on the computer, and the display is inexpensive. However, some customers say it'll be a low quality item, with a bad comp.

"...There are quite a few components including those that go on wheel spokes, the front fork and handlebars...." Read more

"...Nice features on the computer and you can tune the wheel diameter to get the mileage distance more accurate." Read more

"This a piece of junk!!! Still have not got it to work" Read more

"...This computer is a great, bare-bones computer. It matches the distance on the trail signs exactly...." Read more

121 customers mention84 positive37 negative

Customers are mixed about the value of the cycling computer. Some mention that it's a good value, with a low investment and all the basic features. However, others say that it is not worth the money and a waste of time.

"Overall this cycle computer performs well and for the price it's a good value...." Read more

"...Overall, this wireless speedometer and odometer is a good value as it offers a lot of functionality for the money." Read more

"...It's not worth saving money for the amount of hassle this product creates...." Read more

"Its not bad for the price. Shipping the battery stuck to a magnet isnt preferred. Id spend a few more bucks for better." Read more

54 customers mention30 positive24 negative

Customers are mixed about the readability of the cycling computer. Some mention that it's very easy to read, even in bright sun, and the numbers are easy to see. Others say that it is hard to read or figure out what setting it on, the instructions are not written clearly, and are written in very poor English.

"...The readout is ok but within minutes the backlit green display stopped working of course...." Read more

"...(Steps out of order, poorly described and no ability to see what the screens are supposed to look like.)..." Read more

"...It is easy to read on day or night rides, it was easy to calibrate/configure, and I’ve had no technical issues thus far...." Read more

"...It is impossible to read the modes riding the bicycle as the letters are very small. The readout is easy to read...." Read more

24 customers mention13 positive11 negative

Customers have mixed opinions about the mileage tracking of the cycling computer. Some find it great for keeping track of mileage, and easy to set up. They also say it's a great way to track your rides and is wireless. However, others say that it doesn't measure mileage, or that it stopped tracking miles after installation. The odometer only records to whole miles, while the trip computer records in tenths of miles.

"So far this has been great at keeping track of my progress when biking. However, it takes some practice and time to learn how to use the equipment...." Read more

"...The odometer only records to whole miles, while the trip computer records in tenths of miles...." Read more

"This was very easy to put on my bike and keeps accurate mileage so I’m happy." Read more

"Inexpensive but it only lasted about a month and only measures Km. Worst of all the calculations are constantly about 15% above true measurements." Read more

43 customers mention12 positive31 negative

Customers are dissatisfied with the size of the cycling computer. They mention that the display is hard to see while biking, the pick up unit is very large, and the functions are hard to read while on the road. Some say that the sensor does not fit a road bike and the supplied batteries do not fit the receiver. Overall, some customers feel that the product is not compatible with every bike.

"Don’t buy it if you want it for a recumbent trike. Needs to be fitted to the rear tire and then is too far from the handlebars to wirelessly connect...." Read more

"...but the distance display (directly under the speed display) is a little too small (hard to see when biking)." Read more

"This speedometer is small and works well. Unlike other brands that I have used, the signal from the sending unit is strong...." Read more

"...Went on fairly easy. The only concern I have is the pick up unit is very large and sticks out on the fork over an inch...." Read more

Nifty And Great For The Price
4 Stars
Nifty And Great For The Price
Super easy to install just follow the directions. I’m very happy with this odometer, for the price it is everything you could ask for. It takes about five minutes to set it up and it attaches well to your bike. I found the distance to be fairly accurate when compared to my phone apps. I would say if you have a bigger bike it’s a little tricky to get the sensor within 3mm of the magnet. I have a specialized rockhopper size medium with 29ers and had to wiggle it to make sure they come into contact. Overall though a great entry level piece of gear.
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Top reviews from the United States

Kerry
5.0 out of 5 stars Easy to use
Reviewed in the United States on April 11, 2024
Verified Purchase
Easy to install. Easy to use. I wanted a simple speedometer and odometer. This has many more features the light and temperature indicator was kind of cool.
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Anthony Komon
4.0 out of 5 stars Better instructions would help.
Reviewed in the United States on April 15, 2024
Verified Purchase
Once installed and operating, I love it. Went for a half-hour ride and it seemed like ten minutes. So, it works.
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Kristen Endreson
5.0 out of 5 stars Great addition to my bike!
Reviewed in the United States on April 13, 2024
Verified Purchase
I love it says how many miles per hour I’m going and how many miles I’ve gone. It’s just a very nice odometer.
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T. Geery
1.0 out of 5 stars Totally unreliable. I wouldn't buy this again.
Reviewed in the United States on June 13, 2021
Verified Purchase
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.
24 people found this helpful
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Lisa S.
3.0 out of 5 stars Somewhat difficult to mount the sensor/magnet
Reviewed in the United States on September 12, 2022
Verified Purchase
Bought this for my 10 yr old as he is so eager to see how fast he can ride his bike!

Somewhat difficult to mount the sensor/magnet. Its a slick rectangle piece of plastic that you are trying to mount on round forks with two little holes for the zip ties instead of four. hmm, seems like there could be some better engineering there IMO? Also, the magnet if you have single spokes can be difficult to mount and securely fasten as its just a screw type to mount and to try to get within the 3mm specs. I really had to play around with it some but feel I will need to make constant adjustments and confirm every few rides its secure.
The readout is ok but within minutes the backlit green display stopped working of course. But my son is happy he can look down and see his speed, top speed, distance, etc. It even has the temp and a clock on there so I can tell him to come back home at a certain time now. :-}

All in all its ok but I didn't expect a whole lot for $20 but at the end of the day, my son is happy knowing how fast he can go now. :-)
8 people found this helpful
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HAI girls
5.0 out of 5 stars Easy to install
Reviewed in the United States on April 28, 2024
Verified Purchase
Super easy to install. Works perfect
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bill
5.0 out of 5 stars didn't think I road that fast
Reviewed in the United States on April 15, 2024
Verified Purchase
seems to be working well, have to find a cooper to check me with radar.
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Christopher Galler
2.0 out of 5 stars Not great for my purpose. Weak wireless capability.
Reviewed in the United States on March 22, 2024
Verified Purchase
I purchased this for an indoor training bike so that I could track my progress. This means having it mounted to the rear wheel. Because the distance between the transmitter and receiver is 31 inches, the device would not work. I am sure it is great when mounted on the front wheel but it failed for my application. Not sure if I can return it at this point. For this reason, I can not rate it’s performance.
4 people found this helpful
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Top reviews from other countries

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mooseTBS
5.0 out of 5 stars The price and the ease of installation
Reviewed in Canada on September 10, 2022
Verified Purchase
The price that it was easy to install and was very straight forward to program. You must read and follow the instructions. I use it to mainly keep track of my speed and distance travelled. Also too I like that I can p program for KM or MILES per hour. Oh one other thing no wires, great.
One person found this helpful
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Jtoronto
4.0 out of 5 stars Works well, but only if attached to front wheel
Reviewed in Canada on October 21, 2022
Verified Purchase
It was relatively easy to install and works well. For me, the fact that it only works in the front wheel is an issue since I often use my bike mounted to the trainer indoors.
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Janie
5.0 out of 5 stars Works on spin bike
Reviewed in Canada on October 28, 2022
Verified Purchase
I used different magnets than what was provided but works greatly on my spin bike! LOVE IT !
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Janie
5.0 out of 5 stars Works on spin bike
Reviewed in Canada on October 28, 2022
I used different magnets than what was provided but works greatly on my spin bike! LOVE IT !
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Maponos
3.0 out of 5 stars Compteur moyen
Reviewed in Canada on January 9, 2024
Verified Purchase
Il est fait ce pour quoi il est conçu mais il consomme énormément la pile. La pile fait à peine 6 mois et pourtant le compteur n'est pas utilisé intensément...
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Richard Bussiere
4.0 out of 5 stars Good choice, so far so good
Reviewed in Canada on November 18, 2022
Verified Purchase
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.
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