Is Retul 3D Motion Capture worth it for bike fitting?

Discuss light weight issues concerning road bikes & parts.
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vinuneuro
Posts: 103
Joined: Mon Mar 06, 2017 10:34 pm
Location: Chicago

by vinuneuro

I understand the the fitter's skill and experience are the number one factors in getting a good fit and the one I am considering is highly rated and experienced. Standard fit with this shop is $250 and $350 with Retul Motion Capture. Is it worth the extra $100 to do the fit with the Retul digital motion capture?
'16 Spec Diverge Expert

by Weenie


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oldnslow2
Posts: 217
Joined: Wed Feb 03, 2016 1:50 pm

by oldnslow2

first, any fit should include a refit a few months later.

Also and fit is a "perfect world" approximation. Within a few month of a fit, i changed my stem and cleat position. I was much more comfortable.

DJT21
Posts: 160
Joined: Sun Mar 27, 2011 7:35 pm

by DJT21

vinuneuro wrote:
Sun Mar 04, 2018 6:13 pm
I understand the the fitter's skill and experience are the number one factors in getting a good fit and the one I am considering is highly rated and experienced. Standard fit with this shop is $250 and $350 with Retul Motion Capture. Is it worth the extra $100 to do the fit with the Retul digital motion capture?
I'm not sure what the shop are saying by charging extra for the motion capture? Surely if their fits were good enough then you wouldn't need it?

As in, if you paid $250 and they set you up in a certain position. Then if you paid $350 for the motion capture and they set you up differently then surely that'd prove they're not very good fitters?

TBH, I don't know what motion capture is, I'm just presuming it's some sort of video that looks at your positino and pedal stroke.

TobinHatesYou
Posts: 957
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

Retul’s IR capture is good, but it’s just a tool. In the hands of an inexperienced or lazy fitter, it would be pretty useless. Your dynamic angles are going to depend on whether the fitter put the sensors on the right landmarks. It’s nice in that it can tabulate the data in real-time vs using overlays with video fits.

SuperDomestique
Posts: 91
Joined: Mon Sep 05, 2016 11:07 pm

by SuperDomestique

Bit of a strange one. Only thing that you could say justifies the extra is the output that you get as a client from retul although I don't feel that's worth much.

What if anything would be different with the assessment and fitting process aside from using retul to measure angles, that's the key question?

Myself, I want the result of a fitting to always be as good as possible so I only do one fitting service and that gives you everything I have: Video analysis, pedalling/power analysis, saddle pressure mapping and custom footbeds. I don't like retul, but that's just me. I did use it for a while and also bioracer 4d. Prefer video.

cyclenutnz
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Location: Cambridge, New Zealand
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by cyclenutnz

I would charge more to do a fit without 3D - having good data makes decision making so much easier.
Of course, I don't use retul because I created competing software but the point remains. A good fitter with good data will do a better job than a good fitter with inferior tools or a poor fitter with the flashest kit possible.
I'd suggest that a fitter that charges more for 3D mocap doesn't really understand the tool as they see it as a burden to have to set it up, rather than as a boost to their fitting service.
http://www.speedtheory.co.nz
http://www.velogicfit.com - 3D Motion Capture and Frame Finder Software

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wheelbuilder
Posts: 395
Joined: Wed Feb 08, 2017 2:10 am

by wheelbuilder

cyclenutnz wrote:
Mon Mar 05, 2018 2:55 am
I would charge more to do a fit without 3D - having good data makes decision making so much easier.
Of course, I don't use retul because I created competing software but the point remains. A good fitter with good data will do a better job than a good fitter with inferior tools or a poor fitter with the flashest kit possible.
I'd suggest that a fitter that charges more for 3D mocap doesn't really understand the tool as they see it as a burden to have to set it up, rather than as a boost to their fitting service.
That is a well done website. Nice work.

TobinHatesYou
Posts: 957
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

Also it all goes out the window if the emitters, sensors, etc. are in the wrong place...and if the zin wand is used an an imprecise fashion.

cassard
Posts: 94
Joined: Wed Jan 24, 2018 12:31 am

by cassard

no it's not. To much flaws in the system. No repetability and useless tests in the assesment (some are even wrong).

You would be better with a 2 hour fit with a heatly/rehab professional that has knowledge and experience in both cycling and biomecanics

by Weenie


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