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 Post subject: power meters
PostPosted: Tue Jan 13, 2009 12:54 am 
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Joined: Sun Sep 28, 2008 2:23 am
Posts: 655
Location: so. cal.
the cheapest power meter or power meassuring device?
just to have an idea of my power output. i already looked at the polar cs600 with power around 600 us dollars. is there a cheaper option. i do not see myself spending more than 1000 dolars on a powermeter.


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PostPosted: Tue Jan 13, 2009 1:07 am 
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Joined: Wed Nov 15, 2006 10:01 pm
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Location: london
would have though a second hand powertap setup
tikka

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Posted: Tue Jan 13, 2009 1:07 am 


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 Post subject:
PostPosted: Tue Jan 13, 2009 1:07 am 
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Joined: Sun Jun 19, 2005 6:43 am
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Location: Hilly, Hot, and Windy
The polar is about as cheap as your going to get with any form if reliability and repeatability.

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 Post subject:
PostPosted: Tue Jan 13, 2009 1:08 am 
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Joined: Sun Feb 06, 2005 4:22 pm
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Location: Tucson, Az.
ibikes basic meter starts at $199

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 Post subject:
PostPosted: Tue Jan 13, 2009 1:12 am 
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Joined: Fri Jul 14, 2006 12:26 am
Posts: 313
iBike Sport that just came out is $199. You can upgrade it down the road if you really get into power training. I run the 2nd generation Aero and I love it, light, easy to instal, not stuck with one wheel or a super expensive crank.


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 Post subject:
PostPosted: Tue Jan 13, 2009 1:33 am 
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Joined: Sun Sep 28, 2008 2:23 am
Posts: 655
Location: so. cal.
thanks guys i am just usinh it to pacemyself on the hills i usually do a 60 mile ride that ends with a 10 mile hill with a little bit over 2400ft elevation gain. and for a local hill which is around 2 miles at 6-8% grade. i am just trying to get in shape so i can start racing this year.


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 Post subject:
PostPosted: Tue Jan 13, 2009 1:34 am 
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Joined: Sun Sep 28, 2008 2:23 am
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Location: so. cal.
have you used them.


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 Post subject:
PostPosted: Tue Jan 13, 2009 2:19 am 
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Joined: Sun Jan 08, 2006 9:12 am
Posts: 2194
Location: Alto, NM
roca rule wrote:
thanks guys i am just usinh it to pacemyself on the hills i usually do a 60 mile ride that ends with a 10 mile hill with a little bit over 2400ft elevation gain. and for a local hill which is around 2 miles at 6-8% grade. i am just trying to get in shape so i can start racing this year.


The iBike Sport model is great for that and they are only $200. It's the same unit as the Pro, but you have no download capability... though you can upgrade to that later if you wish... and I think you will want to if you are serious about training.

Concerning long climbs... it's really common for people to go out to hard in the beginning, die after a few minutes, and struggle the rest of the way. If I pace myself evenly, the beginning feels too easy, but I'm faster overall and feel way better at the end.


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 Post subject: Re: power meters
PostPosted: Tue Jan 13, 2009 2:55 am 
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Joined: Wed Sep 26, 2007 1:57 pm
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Location: San Francisco, CA
roca rule wrote:
the cheapest power meter or power meassuring device?.


Stop watch and a hill.


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 Post subject:
PostPosted: Tue Jan 13, 2009 2:57 am 
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Joined: Sat Dec 13, 2008 6:28 pm
Posts: 131
Location: San Francisco
I have been using the $200 iBike iSport for a few weeks. I've found it useful for pacing purposes as well as reasonably accurate and repeatable on climbs. On flats it is harder for me to gauge accuracy and repeatability, but I would guess it is likely less accurate and less repeatable due to calibration and rider position issues. For $200 I think it is a good value. For the price I'd much rather have it than not. I can understand now why people swear by power - it is just so helpful. A lot has been written about iBike, both positive and negative. But you need to keep in mind its limitations as a power estimator and not expect too much. If accuracy, reliability and repeatability are paramount in all riding conditions, I suggest you spend the $ and go with SRM.


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 Post subject: Re: power meters
PostPosted: Tue Jan 13, 2009 3:00 am 
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Location: Alto, NM
djconnel wrote:
Stop watch and a hill.


Sucks for pacing... and doesn't work at all if there is wind.


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 Post subject: Re: power meters
PostPosted: Tue Jan 13, 2009 3:20 am 
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Posts: 655
Location: so. cal.
rruff wrote:
djconnel wrote:
Stop watch and a hill.


Sucks for pacing... and doesn't work at all if there is wind.

well that was the way i used to do it and i was able to maintain 10 mph over a mile at 8%. (did i mention this was running not on the bike).


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 Post subject:
PostPosted: Tue Jan 13, 2009 3:45 am 
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Joined: Mon May 07, 2007 12:16 am
Posts: 139
I would say go with a used Powertap. There are a lot on ebay. Ibike does not work on stationary trainers. I tried setting up the polar power stuff and quit after 2 hours, my chain stays are slightly curved making it hard to mount.


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 Post subject:
PostPosted: Tue Jan 13, 2009 8:16 am 
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Location: Alto, NM
fujiteam wrote:
Ibike does not work on stationary trainers.


Works well enough if you have speed/power curve for your trainer.


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 Post subject: Power
PostPosted: Tue Jan 13, 2009 9:31 am 
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Joined: Tue Mar 11, 2008 2:55 pm
Posts: 1318
Location: UK
Powertap Pro or whatever is the cheapest wirey version.

They don't weigh a ton, are nicely made, easily swappable freehubs, don't suffer from drop-outs and with an extra bike mount, easily transferrable.

Good backup service too and plenty software available.

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 Post subject: Power
Posted: Tue Jan 13, 2009 9:31 am 


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