pedal based power meter

Discuss light weight issues concerning road bikes & parts.
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WorkonSunday
Posts: 137
Joined: Tue Jan 16, 2018 4:39 pm

by WorkonSunday

hi all,

got abit of a silly question. any idea if pedal based power meter (garmin, powertap or assioma) still works if i use a flat cover?

something like this:

Image

image borrowed from road.cc

Thanks/
In the house: Colnago V1r, Colnago A1r, Wilier Cento1 Air, Scott Scale 700SL, Bianchi FSE, Colnago Concept, Colnago A1r, Specialized Ruze Pro, Wilier GTR, Argon 18 E117 Tri+, Brompton B75

Ettore
Posts: 101
Joined: Fri Nov 03, 2017 8:44 am

by Ettore

Single sided will start jumping much more than double sided, I imagine, because there is no power on the pedal on the upstroke.

by Weenie


mattr
Posts: 4673
Joined: Fri May 25, 2007 6:43 pm
Location: The Grim North.

by mattr

There's very little power on the upstroke anyway. Pretty much zero (or less) for a vast majority of the time.
I doubt it'll make any difference at all.

FWIW i was setting up a single sided stages on a turbo yesterday, wearing flip flops. Nice steady signal.

WorkonSunday
Posts: 137
Joined: Tue Jan 16, 2018 4:39 pm

by WorkonSunday

ok cool. Thanks guys.

Im convinced that the mearsurement is like some contact patch where the cleat engages the pedal. sounds like the measurement is taken at the axle so it doesnt matter how the force is applied, as long as the axle sense the force, then it will register a signal.

Cheers
In the house: Colnago V1r, Colnago A1r, Wilier Cento1 Air, Scott Scale 700SL, Bianchi FSE, Colnago Concept, Colnago A1r, Specialized Ruze Pro, Wilier GTR, Argon 18 E117 Tri+, Brompton B75

NiFTY
Posts: 1329
Joined: Sat May 26, 2012 11:26 pm

by NiFTY

If you are riding flats i assume you are nipping to shops or pub. Does it really matter?
Evo 4.9kg SL3 6.64kg Slice RS 8.89kg viewtopic.php?f=10&t=110579" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;

WorkonSunday
Posts: 137
Joined: Tue Jan 16, 2018 4:39 pm

by WorkonSunday

nope. i have powertap hub already. im trying to introduce the idea of Power measurement to my wife's training. she only rides flats but she switches between a few wheelsets so buying multiple Powertap hubs may not be the cheapest way to go. (no crank based either, her bike has some rotor Aldhu, so it's way too expensive to get InPower. so im trying to decide if i should get pedal based power meter or Power Pod type wind measurement.
In the house: Colnago V1r, Colnago A1r, Wilier Cento1 Air, Scott Scale 700SL, Bianchi FSE, Colnago Concept, Colnago A1r, Specialized Ruze Pro, Wilier GTR, Argon 18 E117 Tri+, Brompton B75

mattr
Posts: 4673
Joined: Fri May 25, 2007 6:43 pm
Location: The Grim North.

by mattr

Get a powerpod.
Riding on clipless pedals in "normal" shoes is horrible over any sort of distance. Even with an insert like you've shown.

Added benefit is the powerpod will be easy to swap between bikes. And i guess it's only for an indication rather than any sort of precision measurement?

Sock3t
Posts: 223
Joined: Mon Jun 11, 2018 2:20 am

by Sock3t

WorkonSunday wrote:
Thu Mar 07, 2019 2:32 pm
nope. i have powertap hub already. im trying to introduce the idea of Power measurement to my wife's training. she only rides flats but she switches between a few wheelsets so buying multiple Powertap hubs may not be the cheapest way to go. (no crank based either, her bike has some rotor Aldhu, so it's way too expensive to get InPower. so im trying to decide if i should get pedal based power meter or Power Pod type wind measurement.
If she's riding flats, why does power matter?

by Weenie


moyboy
Posts: 447
Joined: Thu Aug 18, 2016 12:19 am

by moyboy

yup it will work they don't care what's on it.... power is power.

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