Ciclosport HAC 4 Plus Computers

3.05/5 (20 Reviews)
MSRP : $399.00


Product Description

The ultimate data acquisition system. Bundled package includes:

  • HAC 4
  • Cadence kit
  • PC download hardware
  • HACtronic software
  • CicloTRAINER software
  • CicloTOUR software


  • Review Options:  Sorted by Latest Review | Sort by Best Rating

    Reviews 1 - 5 (20 Reviews Total) | Next 5

    User Reviews

    Overall Rating:3
    Value Rating:3
    Submitted by Thomas a Recreational Rider

    Date Reviewed: July 29, 2010

    Strengths:    I have used the HR function the most as a training tool. It has worked well. I often then take the information and download to the PC. On the mountain bike I use the Altimeter function a great deal as I climb normally 5000 to 6000 feet in a ride. It has held up for 8 years.

    Weaknesses:    Instruction booklet is very poor. After 8 years it is still confusing to use and there are a number of functions I do not use because of this. Concentrating on pushing button while riding is not good. Cadence never worked well and so I took that off. Battery life is ok. I do not have the problems others mentioned here but the life is not that long and there are three separate batteries to change. Best to just change all at the same time. Only two lines of information; it would be nice to have more info on the main screen. Very poor mounting bracket.

    Bottom Line:   
    I have used this device for about 8 years with thousands of miles on it. It works and I have been generally happy with it both on my road bike and mountain bike. I use it in conjunction with a Shimano Flight Deck mounted next to it so I get information from both. The unit works and provides valuable information.

    Expand full review >>

    Favorite Ride:   backroads of Wisconsin

    Price Paid:    $300.00

    Purchased At:   Ebay

    Bike Setup:   Road: Fabo Alan ('75) frameset W/full Dura Ace with exception of Ultegra Bottom Braket and Campy Record Seat post and Headset due to Italian frame sizing. Syntace C3 aero bars.
    Mountain: Specialized Stumpjumper hardtail stock with Thudbuster seatpost (for my 52YO frame)


    Overall Rating:1
    Value Rating:1
    Submitted by Kevin a Recreational Rider

    Date Reviewed: July 24, 2009

    Strengths:    None. May double as a paperweight.

    Weaknesses:    Total waste of money. None of the features worked as advertised.

    Bottom Line:   
    My best suggestion to anyone considering buying this product is to take $400 and burn it and then tape a roll of quarters to account for the weight of the computer. The installation guide did not match the actual models I ordered or received so installation was a bear. The interface with the computer did not work. The computer would not work even after numerous battery replacements. No customer support was available from the company. In all this was a complete disappointment. I switched back to my $20 Cateye which worked every time.

    Expand full review >>

    Similar Products Used:   $20 Cateye.



    Overall Rating:1
    Value Rating:1
    Submitted by Roger a Triathlete

    Date Reviewed: March 12, 2007

    Strengths:    Temp & altitude & grade

    Weaknesses:    battery replacement could cause troubles!

    Bottom Line:   
    I'm not sure if this product is worth the cost. I found the watts to be total useless. Everything else was great. It was a bit heavy and big. The biggest was when I replaced the battery the first time (by the way it eats batteries) it worked great for a month then quit, I mean blank. Replaced the batteries to be sure but nothing. So now I'm trying to see if its fixable. Which so far know one knows where to send it. I wouldn't waste my money.

    Expand full review >>

    Favorite Ride:   100 + miles

    Price Paid:    $300.00

    Purchased At:   ebay



    Overall Rating:2
    Value Rating:2
    Submitted by beer geek a Recreational Rider

    Date Reviewed: December 26, 2006

    Strengths:    Allows a rider to track fitness and keep a training journal in a way that would be difficult to achieve without the data the unit provides. Some people may even find that the feedback inspires them to ride more.

    The recorded data automatically drops zero points, so your lunch break won't impact your final stats. That isn't the case if you stand within range of the heart rate transmitter, but you can eliminate zero points manually at your PC.


    Weaknesses:    -It uses old technology (small memory, analog HR transmitter).
    -The manual is poor.
    -The mounting hardware is laughable.
    -The cadence unit is unreliable.
    -Display of data is limited.
    -Buttons can be difficult to operate.
    -Device not useful as an odometer.
    -Battery issues
    -Interference with HR transmitter
    -Second bike unit is expensive.


    Bottom Line:   
    Overall, this computer is a very useful training tool. The extensive data allow one to track fitness and also provides a rather cool diary of one's rides. The altimeter (barometer) records pressure, so one can look back at the thunderstorms encountered during the season as well as some surprisingly accurate elevation profiles.

    The HAC4's real power is within the PC software. It is difficult to learn to use, but worth the investment of time and energy. It is only available for Windows OS.

    Unfortunately for the biking world, this device is far from perfect.

    The unit only records data every 20 seconds, which is most irritating. If you enjoy doing short sprints in your workouts, you will be aggravated to see that your true top speed and heart rate are virtually never recorded, nor can you see acceleration. HAC4 files for an all day century ride are about 40 *kilo*bytes. Memory is both small and cheap enough in 2006 to enable recording MUCH more frequently (every second would be nice).

    The manual is poor, especially with regards to the software. A friend of mine had already mastered the HAC4 and was able to help me. That really expedited the learning process. Their website was not very helpful, either (and I speak some German).

    The mounting hardware is pathetic; basically a rubber band and some tape. While you can engineer your own using pull ties, you shouldn’t need to for a unit costing $300.

    I have tried two separate cadence units: one was DOA, the other worked for approximately 0.2 miles. I'll try a third, but am losing patience.

    The data display is limited in two ways. First, displayed velocity is *truncated* to the ones place (ie, 15.8 = 15); the recorded velocity is not truncated.

    Second, the user has to scroll through many different data displays to reach the one of interest. This is potentially dangerous; I want to be watching the road, not the computer!

    I’ve solved these problems by mounting a cheap, but very reliable, CatEye computer on the bike, too. This way I don’t have to change screens on anything.

    Related to the display issue is the button issue. The unit requires pressing two buttons simultaneously for certain operations. This can be challenging while riding, and is very difficult while wearing winter gloves. When the user muffs a double press, the data display will change (because you’ve succeeded in hitting one of the buttons), forcing you to scroll back through myriad screens to get where you started.

    The HAC4 is not useful as an odometer, only as a "tripometer". It only tracks mileage when it is in recording mode, and you have to actively put it in recording mode. If you are commuting to work or going shopping, the mileage won’t be counted unless you record the ride and then download it to the PC. The CatEye I’ve got mounted along with the HAC4 covers this for me.

    Expect battery life to be short on the main unit. Even worse is that it will fail with no warning, so you might be 10 miles into a century when it dies on you. Existing data will not be lost, but you will be riding the old-fashioned way for the rest of the day.

    Changing the battery of the computer is not easy, nor is it at all intuitive. The manual is not very clear. You have to expose the guts of the computer and move a delicate plastic film out of the way to replace the battery.

    The HR transmitter does get blocked by interference a lot in urban settings. More modern digital transmitters do not suffer from this issue (I own one).

    One last thing that I consider a weakness: the radio receiver is separate from the computer and mounts to the bike. This makes it inconvenient to use the unit for multiple bikes, and second bike units are not cheap.

    Even with the above weaknesses, the unit can be a valuable training tool, depending upon your training style. If you could find a more modern device that has all the bike functions you want and is downloadable to a PC, get it even if it costs a bit more.

    Expand full review >>

    Purchased At:   Performance.com

    Similar Products Used:   CatEye Enduro 8
    Timex digital transmission HR monitor


    Bike Setup:   LeMond Buenos Aires
    Trek 520


    Overall Rating:4
    Value Rating:4
    Submitted by Argentius a Road Racer

    Date Reviewed: August 18, 2006

    Strengths:    Stores a LOT of data; don't have to download daily
    Tracks every feature imaginable.
    Altimeter!
    Downloads to your computer


    Weaknesses:    Mounting bracket is garbage.
    20-second sampling too broad for some applications.
    No tenths display on unit
    Poor English in documentation


    Bottom Line:   
    You don't know how much you want an altimeter on your rides until you have one. This is a great computer, with one glaring weakness: the mount that connects it to the handlebars is total junk, and the design of it means you can't just fabricate something with zipties.

    Other concerns: Instruction manual is poorly translated German-to-English, full of "All your Base" type sentences, but it tells you what you need to know to get it going. The "power" feature is pretty much silly -- It's not a power meter, it just kind of calculates it. It's decent enough up a steady climb, but useless on flats and rapidly changing terrain. Best to pretend that feature's not there. Because the sampling interval is 20-seconds, the display on the screen isn't very accurate with some of the features like gradient, "power," etc, but it smooths out in the software.

    It does everything -- barometric altitude, but you can override it with a known start point for more accuracy. Speed, cadence, heart rate, even temperature. Has auto start-and-stop, but not for the recording feature, you need to do that manually. The software is pretty good once you figure it out, but the documentation is a little poor. Reliability of the heart rate and speed transmission is GREAT. Still vulnerable to high-transmission powerlines, etc, but compared to the weak signals Cateye and generic brands, it's a big improvement.

    Expand full review >>

    Price Paid:    $300.00

    Purchased At:   Performance




    Reviews 1 - 5 (20 Reviews Total) | Next 5

    Review Options:  Sorted by Latest Review | Sort by Best Rating


    How to Replace Battery in Ciclosport HAC 4 Plus

    Replaceing the battery on you HAC4 is quite simple. Tools 1) jewlers style phillips or regular screwdriver 2) tweasers 3) tape (optional) 4) battery CR2032 1) remove the watch band rods. They are spring loaded at each end. Be careful the can shoot out like a rocket. I put a piece of tape ... Read More »

    Read More »






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