CYCLINGFORUM.COM - Where Cyclists Talk Tech --- Return To Home

 

    Register FAQ'sSearchProfileLog In / Log Out

 

****

cyclingforum.com ****

HOMECLUBS | SPONSORS | FEATURESPHOTO GALLERYTTF DONORS | SHOP FOR GEAR

Return to CyclingForum Home Page CYCLING TECH TALK FORUM
          View posts since last visit

New low cost, easy to move power meter
 

Author Thread Post new topic Reply to topic
Brian Nystrom
Joined: 26 Jan 2004
Posts: 5096
Location: Nashua, NH

4/25/19 2:01 PM

New low cost, easy to move power meter

If this actually works, it could be a game-changer:
https://bikerumor.com/2019/04/23/arofly-link-pre-order-most-affordable-power-meter-now-for-under-200/

 Reply to topic    

dan emery
Joined: 11 Jan 2004
Posts: 6884
Location: Maine

4/25/19 4:11 PM

Well maybe

Seems like a lot of things have to go right in the ol’ Algorithm....

But I know nothing about this stuff, and that’s OK since my present riding level does not justify worrying about power.

 Reply to topic    

Sparky
Joined: 08 Dec 2003
Posts: 19068
Location: PDX

4/25/19 4:12 PM

Seems like something that will be snatched off bikes easily once the scumbags figure out it is worth something...

 Reply to topic     Send e-mail

henoch
Joined: 12 Jan 2004
Posts: 1690

4/25/19 8:11 PM

Until I see some real life tests it seems like a fantasy to me

 Reply to topic    

Brian Nystrom
Joined: 26 Jan 2004
Posts: 5096
Location: Nashua, NH

4/26/19 8:24 AM

I'm skeptical, too. I don't see how it can fully compensate for pressure changes caused by rough surfaces. If they can demonstrate that it's within 1-2% of other power meters on cobbles, it will get my attention.

Dan, I hear you. I can't justify the cost of a power meter, either, though I have to admit that seeing power readings on my smart trainer has peaked my interest somewhat. I'm sure my numbers on the road will be somewhere between embarrassing and pathetic, but it would be interesting to see how they change throughout the year.

 Reply to topic    

walter
Joined: 11 Jan 2004
Posts: 4391
Location: metro-motown-area

4/26/19 8:55 AM


quote:
Until I see some real life tests it seems like a fantasy to me


i'm with henoch and the peanut-gallery!

remember polar's failed powermeter that worked by indirectly inferring tension in a moving chain with varying chainline?

Last edited by walter on 4/26/19 8:56 AM; edited 1 time in total

 Reply to topic     Send e-mail

KerryIrons
Joined: 12 Jan 2004
Posts: 3234
Location: Midland, MI

4/26/19 8:55 AM

Casing stiffness

Given the significant effect that casing stiffness has on rolling resistance, I wonder how they take that into account in their algorithm? Seems like a coarse approximation at best. And if you look at the differences in road surface roughness, there could be a LOT of noise to filter out of the signal. Measuring power is a data exercise, and I'd need to see a lot of data to prove that this is any more accurate than the very poor estimates you get from a bike computer.

 Reply to topic    


Return to CyclingForum Home Page CYCLING TECH TALK FORUM
           View New Threads Since My Last Visit VIEW THREADS SINCE MY LAST VISIT
           Start a New Thread

 Display posts from previous:   


  
Last Thread | Next Thread  >  

  
  

 


If you enjoy this site, please consider pledging your support

cyclingforum.com - where cyclists talk tech
Cycling TTF Rides Throughout The World

Cyclingforum is powered by SYNCRONICITY.NET in Denver, Colorado -

Powered by phpBB: Copyright 2006 phpBB Group | Custom phpCF Template by Syncronicity