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Old 09-13-07, 08:57 AM   #1
senatorw
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Newbie Power Meter Questions

I am training with power in an ecyle class (computertainers with extensive Vo2 Max and VT1 and VT2 testing), and want to make the transition to a power meter on my road bike. I have searched all over the net and threads here (and on slowtwitch) comparing SRM (no way, too much money for me), PT and Ergomo. I have Fulcrum Racing 1s which I really like and would be sad to let go, but I would. I am not sold on what I have read about the Ergomo (I have a reconstructed left knee and measuring power only on my left side probably doesn't work, and I have other concerns). The new quarq thing sounds too expensive and I'd have to wait some more.

I am kind of landing on the wired PT. The question is what wheels do I lace them to. I ride an occassional triathlon and want to do a half IM next year, don't have the money for two sets of wheels. Seems pretty much the choices are Zipp 404s, Mavic Open Pros, DT Swiss. I read here and there people saying it's stupid to train on 404s. So, if you want a PT laced into wheels you will ride every day, which?

Thanks.

Last edited by senatorw; 09-13-07 at 09:31 AM.
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Old 09-13-07, 09:06 AM   #2
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I personally use a PT pro laced to a DT Swiss 1.1 for all of my races. If you plan on doing the occasional time trial or triathlon consider getting a disk cover from Wheelbuilder.com. I know the owner personally and he does excellent work. Obviously its not as good as an actual disk, but it does the job well enough.
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Old 09-13-07, 09:23 AM   #3
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I am training with power in an ecyle class (computertainers with extensive Vo2 Max and VT1 and VT2 testing), and want to make the transition to a power meter on my road bike. I have searched all over the net and threads here (and on slowtwitch) comparing SRM (no way, too much money for me), PT and Ergomo. I have Fulcrum Racing 1s which I really like and would be sad to let go, but I would. I am not sold on what I have read about the Ergomo (I have a reconstructed left knee and measuring power only on my left side probably doesn't work, and I have other concerns). The new quarq thing sounds too expensive and I'd have to wait some more.

I am kind of landing on the wired PT. The question is what hubs do I lace them to. I ride an occassional triathlon and want to do a half IM next year, don't have the money for two sets of wheels. Seems pretty much the choices are Zipp 404s, Mavic Open Pros, DT Swiss. I read here and there people saying it's stupid to train on 404s. So, if you want a PT laced into wheels you will ride every day, which?

Thanks.
I'll be building mine into a Velocity Deep-V. 32h -- super durable. Right now I race and TT on a 36h Deep-V.
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Old 09-13-07, 09:27 AM   #4
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The new quarq thing sounds too expensive and I'd have to wait some more.
I think you should wait at least until Interbike (what is that, two weeks away?), when Quarq has promised to reveal pricing, before dismissing their products as too expensive.
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Old 09-13-07, 09:37 AM   #5
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I think you should wait at least until Interbike (what is that, two weeks away?), when Quarq has promised to reveal pricing, before dismissing their products as too expensive.
Still, there's a $200-$300 (?) new crank purchase in order, unless you're lucky enough to have one of the 5 or so cranks they're compatible with. That's 1/3 of the way to a PT wheel right there...
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Old 09-13-07, 09:48 AM   #6
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Get yourself a pair of Zipp or similar rimmed clinchers, if you want these to be aero race and training wheels. Relace to the PT, or buy it that way.

There are a good amount of rebadged, and markedly cheaper, Zipp clincher rimmed wheelsets out there. Flashpoint, their subsidiary, for starters.
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Old 09-13-07, 09:49 AM   #7
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I'll be building mine into a Velocity Deep-V. 32h -- super durable. Right now I race and TT on a 36h Deep-V.

What he said.

I had a PT on a DTswiss 1.1, but after just a year it develiped cracks around every drive side spoke hole. I've since learned that it's not that durable of a rim. It's since been relaced to a velocity deep v 32h.

The Deep V weighs more, but that shouldn't matter if you're doing Tri's and you're already willing to race on a PT. It's also much stronger and more aero than the 1.1 or open pro.

If you get carbon and ride it around your city, you're likely going to crack it.
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Old 09-13-07, 10:25 AM   #8
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You can get a wired PT/Open Pro on Ebay for $450-475, and I bet if you wait a month or 2 they will be even cheaper.
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Old 09-13-07, 10:49 AM   #9
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Still, there's a $200-$300 (?) new crank purchase in order, unless you're lucky enough to have one of the 5 or so cranks they're compatible with. That's 1/3 of the way to a PT wheel right there...

Well... you could get a Truvativ Rolleur Carbon from Ebay, new, for $175: http://cgi.ebay.com/Bike-Crank-TruVa...QQcmdZViewItem

but that's still substantial $$$.


It would be nice if Truvativ or some other company would bring out a cheap (aluminum) compatible crank.


What YOU could also do is get a CAAD6 or 7 frameset off ebay with the Cannondale Hollowgram Si crankset. The extra stiffness over your Ritchey would probably save you an extra tenth of a second on your next TT.
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Old 09-13-07, 11:45 AM   #10
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Well... you could get a Truvativ Rolleur Carbon from Ebay, new, for $175: http://cgi.ebay.com/Bike-Crank-TruVa...QQcmdZViewItem

but that's still substantial $$$.


It would be nice if Truvativ or some other company would bring out a cheap (aluminum) compatible crank.


What YOU could also do is get a CAAD6 or 7 frameset off ebay with the Cannondale Hollowgram Si crankset. The extra stiffness over your Ritchey would probably save you an extra tenth of a second on your next TT.
Good point.
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Old 09-13-07, 12:19 PM   #11
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Actually, the poor aerodynamics of the big fat round downtube on a Cannondale might hurt your times.
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Old 09-13-07, 02:44 PM   #12
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Actually, the poor aerodynamics of the big fat round downtube on a Cannondale might hurt your times.
I think the lost placebo effect of being off my Ritchey would hurt more than anything. I'm too used to it.
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Old 09-13-07, 03:18 PM   #13
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I have a PT laced to a 32 spoke open pro, and a PT laced to a velocity aerohead OC, 28 sapim cxray spokes.

Both are nice, I don't race the open pro anymore.
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Old 09-14-07, 08:48 AM   #14
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I have a PT laced up to a Reynolds a Solitude wheel set. They are reasonably light. I have about 3200 miles on them this year between training, racing and time trials and have had no problems.
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