MACUNIN Bike Computer Multi Function Waterproof Bike Speedometer Odometer Cycling Accessories with 3'' Large LCD Display and Backlight

Love the nice large display however I bought 2 of these bike computers, one works most of the time (it cuts out occasionally) where as the 2nd unit doesn't work most of the time. I'm going to try new batteries to see if that takes care of the issue. If they worked 100% of the time this would easily be a 5 star product. Right now I can not recommend.** update - After futsing with the sensor and holding in place with a small strip of gorilla tape I was able to get both bike computers to work. Without the gorilla tape the sensor would slide down the fork causing the computer not to work. I love the large display but the directions for installation were a little lacking.

Unit is a nice value in the Cycling computer segment. The wheel transmitter is truly hit or miss and will erratically just stop mid route communicating with the head unit then pick up again a few mins down the road even with fresh batteries.Batteries are easy to swap in both pieces CR2032 universal stuff and the bracket needs to be cared for gently as its a little thin and the screw can strip if over tightened. Overall the unit is very accurate to the wheel circumference you set it to for your needs. The magnet that attaches to the spokes could be redesigned and less bulky as on my bike normal vibrations and centrifugal forces move it ever so slightly and it will hit the sensor as it soaks up vibrations. Overall its a well made Computer however the brackets, sensor bulk and magnet leave much to be desired.

Once you hit 42, 43, you will have presbyopia - your eyes lose the ability to focus on near objects. My prescription sunglasses are not bifocals and reading small odometers was always tough. This model is brighter than the old designs, clearly larger, making it more readable without "readers". It has multiple functions that you may or may not use, including ambient temperature.I would definitely buy again.

Bike computer itself is great for those who would like a larger screen. It is easy to read, and it has all the options you could want, including time and temperature, as well as the usual suspects of average speed, max speed, etc. etc. The computer itself is great. However, the mount needs work. As others have mentioned, mine came off my bike and ended up in the road at least once on every ride, of which there were a total of three. On the third ride when it came off, the jacked-up 4 x 4 behind us managed to swerve just in time to crush it to oblivion. If they redesigned the mount to lock into place easier and more securely, they'd have a winner. As it is, I would still recommend this, but make sure you take additional steps to ensure it is secured to the bike. Duct tape? Possibly a zip tie? Something.

Unit was easy enough to install. Speed, distance seem to work fine and is consistent with readings I got from my previous bike computer. The calorie consumption and fat burn is not really accurate - significantly lower readings for the same distances as I got with other computers. No way to fix this I guess. So - to track your speed and distance, this unit is fine. And given the price...well...can’t expect too much

Lots of useless features, but I like the size of it and have had no issues.

This bike computer has a lot of potential but I returned it after two rides. The wireless transmitter setup works great, so it is easy to install. There are two main issues, however:1. When riding at night and using the illumination, the batteries drain fast...at least according to the manual. I bought this computer specifically for night riding so that really turned me off. The batteries are not rechargeable.2. The mount is not very effective. I had this computer for two rides, on both rides the computer fell off when hitting some bumps in the road. The second time, it broke completely. Imagine riding at a high speed worried the whole time that the computer is going to fall off, it is dangerous.

Easy to mount on my touring bike and easy to setup and use. Large readout is great -- use along with my GPS Garmin watch -- so I can track main indicators easily. Price is great compared with most other computers if you only want basic features.