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polar s710 pros, cons and etc......(4 posts)

polar s710 pros, cons and etc......Gall
May 20, 2002 2:46 PM

i am sure this has been talked about before. but the search doesnt seem to work.

anyhow... i am looking at the s710. my main question is: how does the power function work? i looked for price on it and i cant seem to find how much it costs to add the power function.

re: polar s710 pros, cons and etc......grzy
May 20, 2002 2:52 PM
The few that have it say it works pretty well. However, it's a lot of crap hanging on your bike - since it's not wireless. You have a wire and sensor going to the rear der pulley and then a fairly lagre sensor (w/wire) that sits on the chainstay that actually houses a circuit board. I believe you need the special mount that contains the battery and to whihc the wires lead to. It's definitely got geek-appeal, but at that price (and very limited availability) I wonder if you really need it. I run the wireless cadence on the road bike, and use the speed on the road and MTB. It works pretty well, but Im leary of the power option - I don't like being a "beta user" any more than I must.
I ordered it last yearonespeed
May 20, 2002 5:09 PM
When it finally came I unpacked it read the instructions and looked at the diagrams, repacked it and sent it back. It was simply too much work.

You might think differently though.

Let me know.
I use oneDuane Gran
May 21, 2002 6:07 AM
I use the S710 with the power kit and I'm pretty happy with it. In layman terms, the power function works by calculating the vibration of the chain (similar to a guitar pickup) and the chain speed. The power kit generally costs around $350, making the total kit around $650.

The general opinion is that SRM is the best power meter, but at $1400 (USD) it is a bit hard to justify. The polar is something of a pain to setup and makes a cyborg out of your bike, but it is a nice system. For weight weenies it is also the lightest power meter you can get for the bike.