Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: How secure is the handlebar mount?
Document: Z2 has everything one need to keep track of a good training. Set up is easy, just follow the procedures on the manual. It can be used for swiming (do not press any button while under water).Update Aug-18thI've read some reviews reporting problems and still, bought it... After 6 months I'm having the same problems (freeze screens, bad buttons need to reset all data, and so on). Contacted the manufacture and they want me to send it to Germany!
You can set the limits manually or let the computer pick limits based on your age. If you can get this at a close out price you'll love it.I would not pay more than $100 for it, especially since it does not include the cadence sensor.
You also have to clear out the stopwatch separately. So, it doesn't lend itself to fast/easy operation.
This blows away any cycling computer I've owned in the past but it's been 20 years since I last bought a computer. I bought this because I was frustrated with my attempts to use an iPhone with ANT+ sensors as a computer. This computer solves all my issues, especially battery draining mid-ride and having something take up a lot of handle bar space.This computer pairs with any ANT+ speed/cadence sensor and any ANT+ heart strap.
The viiiiva chest strap transmits both ANT+ and Bluetooth Smart simultaneously so both my iPhone and the VDO Z2 pick up the signals. The screen is intelligently laid out for what matters to me (cadence, heart rate, speed, and toggle between distance and %max HR). I personally aways find something I was was implemented differently. In this case, I would not change a thing, especially not on the display.
The software package is a mess, and I just don't use it. Nor do I use many of the other features, due to being less than user friendly. If you want a computer with those features spend the money on a better solution. If you just want a bike computer with a built in heart rate monitor, that after the learning curve is easy to use, this unit is for you
The one I buyed was new, but stop working few months latter. It is a real mess. Don't buy it!!!! !
The computer is ANT+ compatible and you can go to the ANT+ website to find compatible cadence sensors.For the money you get ANT+ compatible sensors (HR and Speed) and the computer. Shop around and you won't even get the sensors for this price. Down the road you may opt for a more expensive GPS enabled computer that also supports ANT+ and you can save money by on purchasing the computer only.Overall I'm happy with it. Of course I haven't had it very long.
Probably the best deal you can get on bike computers right now hands down. My concerns are the durability of the unit, over reviews have complained about the buttons jamming, and if necessary using the 5 year warranty as the company is based in Germany. I'm happy with it, but wanted the ant+ hr monitor for other uses. If you want an easy to use integrate bike computer with hr and cadence, look somewhere else. If you want an integrated solution that's cheap and works, this is for you.
Maybe they'd replace it, but now I've got to worry about it happening again, and then let's say I finally switch after two or three times of this happening, and the data i've recorded in that thing is unreadable in my new thing, and the whole reason i got this thing is to record and collect data - analyzing it is only doable when i have a LOT of data, and i don't want to have to start over after a few months.
Answer: no