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Polar or Ciclosport HRM?(5 posts)

Polar or Ciclosport HRM?raynim
Nov 22, 2003 10:58 AM
So i'm shopping for a nice heart rate monitor that is both a complete bike computer and HRM, with all the functions I could possibly need. I've narrowed it to the Ciclosport HAC 4 and the Polar S720i? I can't see many reasons to choose one over the other, other than polar being the standard among HRM. That and the polar seems like it might be easier to use and more durable. Any problem with the wireless speed sensor? Also any trouble getting the magnet on bladed ksyrium spokes? Reasons for one or the other would be appreciated.

Gym use?gala7516
Nov 22, 2003 2:24 PM
When I go to the gym many of the cardio machines are Polar compatible. So the machine will not only display your heart rate, but also maintain a perticular heart rate depending on your workout. So you may want to consider that.
Mavic has a magnet that you can get for the Ksyrium spokes, check with your LBS.
re: Polar or Ciclosport HRM?torquecal
Nov 22, 2003 6:13 PM
I have a HAC 4, and as a HRM and a bike computer I'm basically happy with it. If I had to do the purchase over again I might go for the Polar instead. Just a couple of observations:

1) If you're getting the HAC for it's power "measurement" forget it... it's a calculation not a measurement. If you don't use power in your training it can be a nifty number to see on the graph, but it's not worth the extra dollars!

2) If you get the cadence option the HAC4 handlebar mount that came with mine is terrible!!! It's a half moon plastic with ridges designed to grab rubber o-rings that complete the mount under the handlebar. It needed immediate zip tie reinforcement even before the first test ride. On a side note: the mount for the normal (i.e. non-cadence option) is fine, a totally different design.

3) The software comes with almost zero documentation. If you're computer literate you should be able to figure it out, but the learning curve is pretty steep. But I have to admit, now that I've been using it for about nine months I'm comfortable with it, and appreciate a lot of it's features.

4) On the plus side for the HAC; you can replace the batteries without sending it back to the manufacturer, and the altimeter is about as accurate as any barometric altimiter is going to get.
re: Polar or Ciclosport HRM?pedalruns
Nov 22, 2003 7:50 PM
I've been using the HAC4 now for about 3 months and I'm pretty happy with it. A good website with info is

I have the rubber O-ring mount on both my road and Mt. bike and have not had any problems... I was worried about the Mt. bike, but it has surivored just fine on alot of bumpy trials.. No worries at all on the road.

The cyclocomputer works great and I can read the display easily, and once you learn the order of the functions(and there are many!) it is pretty easy to navigate.

And of course the power is not accurate.. but it can still give you a good idea if you do the same course in generally the same conditions, especially long hills sheltered from the wind... (NO I know it is NOT accurate like the more expensive units) But I didn't get this unit for the power.

The sofware has hardly any instructions, but after several weeks I really like it.. The ciclotour I use the most.. I also like the ciclotrainer, even though the raw data has wrong dates imported..I can still manage and I really like keeping track of all the hours and in what hr zone you were in..

So far I'm pretty happy with mine, and I love all the functions.. and it is kind of nice to not have what everyone else has.
love the 720iCritLover
Nov 22, 2003 8:43 PM
I can't speak about the HAC 4, but I was in the same position a few months back. I really like the options available in programming the workouts and find the software to be pretty good. I have the wireless speed and cadence, and both work perfectly. Overall the unit is very sturdy, and if you're into numbers, the power setup is a great addition. I would not hesitate to recommend it.