I bought this computer because it is wireless and you can see MPH, odometer and time all at the same time. The wireless works well. I question the accuracy of the computer. It seems off at high speeds. Also, the readout has a 3-4 second delay. So when you change speeds, the computer takes a few seconds to update the display. My wired cateye does not seem to have this problem. For a serious competitor, I think you would want to spend a little more. But for recreational biking it works fine. 4 stars

The product is outstanding. The installation instructions are as you would expect... not thorough! But I love it anyway. 4 stars

I've been cycling for years- and have installed plenty of these kinds of gadgets on a multitude of bikes. This one didn't work.
After carefully reading the manual and buying and changing the batteries, and reinstalling multiple times I came to the conclusion that the sensor was not working. Have emailed Vetta and the retailer. Both have replied; Vetta sent some information and the seller has offered to send me a new sensor at their expense. I rate both for getting back to me promptly, and I hope this fixes the problem. Overall a but frustrating, but gratifying that they are actively helping fix the problem. 1 star