Bike Computer, RISEPRO® Wireless Bicycle Speedometer Bike Odometer Cycling Multi Function Waterproof 4 Line Display with Backlight YT-813

This is an update to my previous review on this item and I am down grading it to only 3 start. 2 weeks after I bought it the computer stopped working. I was pretty sure it was a battery issue since it worked at first and I haven’t dropped or crashed my bike. I was out on my first long ride since I bought and installed the computer on my bike and suddenly the computer stopped reporting speed, distance, ride time, etc. The head unit worked fine with the time and temp still displaying so I stopped and checked the magnet alignment which “looked” fine so I figured the batter in the sender stopped working. I got home and had to cut the zip ties that home the sender on my fork so I could get to the battery. I got busy over the weekend and only just today got a new battery (CR2032) for the sending unit. I put it in and ran the magnet by the sending unit a few times to see if it was working and it was. I put the sending unit back on the fork and nothing?? I tried re-positioning it a few times and still nothing so I got out the cough, cough “instructions” which were really not much help at all. After working with it for 30 minutes I finally got it working and the “instructions” were no help at all. It took some trail and error for me to get it right but it is working now and I have a feeling the battery was not bad at all it was the poor “instructions” that lead me astray. If anyone else buys this computer don’t go by the “instructions” they will be of little help. On the sending unit on the side of the unit opposite of the battery door there are 2 marks about 3/4″ apart. The magnet has to be lined up with the lower of the 2 marks for the computer to work properly and this was not mentioned at all in the “instructions” The “instructions” lead a person to line the magnet up in the center of the 2 marks and that will not work so be forewarned if you buy this computer. The “instructions” could stand to be a lot better!

No me sirvió, no funciona, pésima compra

I like to have the device on my bike for records on my performance. Buying such things must carry with it clear messages on the installation and operations of the device. If this becomes blurry then the purchaser will not be able to use it and feel unsafe to purchase such items over the online portals.

Installation very easy, no problems there. Instructions very vague. In set-up is asks for weight but does not tell you what weight, my weight or bike weight? I changed my settings to miles and MPH but just riding in a circle on my driveway it shows I was doing 37 MPH. I can not get it to read the correct MPH and with that I don’t really know if the distance (miles) is correct either. I wouldn’t buy this!!

I was most impressed when installing this bike computer. It has a great selection of functions and is fairly easy to read. The wheel size info is a bit confusing, and could probably be improved. For the price this is a great deal, the wireless works perfectly. I would recommend this unit.

We got a few of these for kids’ bikes and they all work fine so far. Amazing price when you compare to a Cateye. I prefer a smaller device, but then of course you would have fewer data points visible at any given time. These have a lot more data points than the Cateyes I use, probably everything you would want in a non-GPS computer. You can’t customize what you see on the screen. There are about 4 screens that show certain collections of data. The kids love them and they are competing for the highest max speed they can register. The magnet mounts could be better — they don’t seem to be shaped exactly right to grip the spoke and hold position, but be patient and you will be able to get them to stay in place when you really tighten them hard. Definitely recommended if you want an inexpensive computer.

OK… it is a ‘Five Star’ rating in part because give me a break… a wireless cycling computer with calorie count and thermometer for around 16 bucks? That has to count for something. So the not-great stuff first… it has three menus of stuff to select from as far as the display goes and what you get on each screen is what you get. You can’t customize the lines of data that get displayed. So for example, I would like the speedometer with the thermometer, but I can’t get that. Instead, if I want to know the temperature I have to toggle through the second screen to the third screen to read that. That screen displays ‘Maximum Speed’ in place of your current speed, which is pretty useless for me… it might be nice to know after a ride what your fastest speed was… it just isn’t anything I need to know on an ongoing basis. Secondly, the instruction sheet is very detailed, very involved, not super-well-written and a bit confusing. When you’re setting up various lines of display, you’re not always sure what it is the line you’re working on represents… if you start reading the instructions, you’ll eventually figure it out… but by then it has timed-out of the set up mode and you have to start over again. Third, you can’t cram in lots of lines of data in a unit this small without the font being on the small side. Again, it isn’t the unit’s fault that the lines are as small as they are, but it can be annoying. Good stuff… the back light feature works well. There are a number of different settings, but I haven’t set up anything different from what it came with and you push ‘Mode’ at night to get a good 3 seconds of light. And it does light up the whole display despite originating on the left side of the unit. The thermometer works! I used to have a ‘puter by Planet Bike that was a wired unit that I bought specifically for the thermometer and it was terrible. I’d leave my house on a day I knew was in the 30’s and it would read 74 degrees or some-such and by the time I got to work some 25 minutes later it would read like 56 degrees. This one seems to work well and in the moment… you can program Celsius or Fahrenheit… also kilometers or miles for the other measured settings. Set up is straight forward and easy. Honestly, all the sturm und drang people are raving about in the reviews has me flummoxed. I mounted mine on the left side of the bike, made sure the magnet was centered on the wheel sensor, turned it on and it had a pulse right away. A tip: I didn’t have to do this because the magnet on this unit is pretty strong… but you can buy the tiniest of the neodymium magnets and attach one or two to the wheel magnet to increase its strength and range. Then you won’t have to adjust the distance to the sensor to within a micron of its life. The dimensions for these craft magnets are like 2 mm diameter and 1 mm thick. Accuracy of the speedometer… yeah, I’m not sure. It seems accurate based on how far away a destination is and the trip distance, which seems to correlate well. The instructions do give you some common measurements for different diameter wheels… it doesn’t have 700 x 25c however and so I can’t see how well my measured / calculated circumference ‘stacks up’ with their estimate. The calorie count feature keys off your mass in kilograms with one pound = about 2.2 kilograms. Personally, I think any and all calorie count features are pretty worthless. How fast you’re going and therefore how many calories you’re burning just has too many variables to account for. Durability, water resistance, battery life, etc. are all unknowns at this point. If these wind up being ‘bad’ I’ll post updates.