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Powertap C1 Chainring Powermeter for $349 shipped

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The powertap website has C1 Chainring powermeter for $349. These had been selling for $699. It may be they are coming out with a new model soon and trying to clear inventory but reviews are generally excellent and it's lowest true strain meter I've seen at this price point and measures power through entire stroke (not just one side).

Make sure these are compatible with your cranks by checking compatibility table on their website as they don't fit the new 4-bolt Shimano cranks (105, Ultegra, Dura-Ace).

https://www.powertap.com/product/...chainrings
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Created 03-02-2019 at 09:03 AM by JamesR4684
in Sporting Goods (2)
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Joined Jan 2004
L6: Expert
> bubble2 1,582 Posts
318 Reputation
faztcobra
03-02-2019 at 09:24 AM.
03-02-2019 at 09:24 AM.
Great deal, but I like my dura ace.
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Joined Jan 2004
L6: Expert
> bubble2 1,582 Posts
318 Reputation
faztcobra
03-02-2019 at 09:26 AM.
03-02-2019 at 09:26 AM.
Not good with most Force or Red either.
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Joined Dec 2014
L1: Learner
> bubble2 15 Posts
10 Reputation
JessieM7447
03-02-2019 at 10:24 AM.
03-02-2019 at 10:24 AM.
Hmmmm, would you recommend this or a pedal based meter?
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Joined Mar 2014
L7: Teacher
> bubble2 2,152 Posts
487 Reputation
madcowdisease
03-02-2019 at 10:58 AM.
03-02-2019 at 10:58 AM.
FYI for those cranking through a lot of miles and intending to keep this for a fair amount of time...replacement chainrings are $200. Granted, good chainrings can last 15,000+ miles with proper care but that is a ridiculous price for just chainrings.
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Joined Mar 2014
L7: Teacher
> bubble2 2,152 Posts
487 Reputation
madcowdisease
03-02-2019 at 10:59 AM.
03-02-2019 at 10:59 AM.
Quote from JessieM7447 :
Hmmmm, would you recommend this or a pedal based meter?
If your bike falls over, your pedal PM may be toast. I got a crank-based for that reason. There is also not much point with the L/R power distribution, either.

And given that pedal-based systems are $700+ I think that makes the decision pretty easy...
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Joined Jun 2013
L2: Beginner
> bubble2 65 Posts
24 Reputation
ko1790
03-02-2019 at 12:14 PM.
03-02-2019 at 12:14 PM.
Quote from faztcobra :
Great deal, but I like my dura ace.
useful info. neat.
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Joined Feb 2011
L5: Journeyman
> bubble2 571 Posts
302 Reputation
bcg27
03-02-2019 at 02:35 PM.
03-02-2019 at 02:35 PM.
Great price for a crank based total power meter. Won't give true left/right balance but that is more of a curiosity than actually useful. The crank compatibility is unfortunately limited though.

If you can spend a little more I can recommend the power2max NG eco for its better crank compatibility.

Crank vs pedal I think is a matter of preference. The crank is more protected and battery life will be much longer. Pedals are more easily changed between bikes. Pedal is generally a couple hundred more expensive.
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Joined Oct 2017
L6: Expert
> bubble2 1,215 Posts
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voodoo_chile
03-02-2019 at 02:39 PM.
03-02-2019 at 02:39 PM.
get a left arm Stages and be done with it.
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Joined Jun 2016
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> bubble2 10 Posts
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Zzezima
03-04-2019 at 03:37 PM.
03-04-2019 at 03:37 PM.
I like mine.
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