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PostPosted: Mon Dec 15, 2008 5:49 pm 
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NEW VERSION V8




http://www.mediafire.com/file/5xnxnyynzih/Biomechanicalcyclingv8english.zip


New features V8:

Saddle length included for the calculation of setback.
Minor cosmetics issues.

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Biomechanical spreadsheet. Sizing&Fitting.

http://weightweenies.starbike.com/forum ... 8e319d185b


Last edited by beatnik on Thu Jan 14, 2010 4:29 pm, edited 23 times in total.

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Posted: Mon Dec 15, 2008 5:49 pm 


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PostPosted: Mon Dec 15, 2008 9:34 pm 
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Location: Leiden, NETHERLANDS
@Beatnik

Goood idea!

Your spread sheet is a good guide line!

I told you so before!

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My bike is Italian so it is Nervosa and of course has Anorexia I like them thin!
GIOS "New" Carbon Ultra 2006 Campa Record+Special parts.
GIOS "New" A90 2008 Campa Record+Special parts. My winter and vacation bike.


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PostPosted: Tue Dec 16, 2008 1:52 am 
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you must have read my mind, I was reading some your posts the other day and was thinking I would like to look at that, thanks


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PostPosted: Tue Dec 16, 2008 4:20 pm 
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Thx, it´s a good start, but somebody told me he felt better with minor adjustments. Be careful measuring your body lengths, it will helps a lot. Nevertheless i think it´s a very accurate fitting system, i helped a lot of people here in Spain in a famous forum (more than 5000 people) and everybody feels better riding and more powerful indeed. I was riding with this fit for 10 years without pain or injury, and i´ve done more than 100.000 km.

I hope it helps. Regards.

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Biomechanical spreadsheet. Sizing&Fitting.

http://weightweenies.starbike.com/forum ... 8e319d185b


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PostPosted: Wed Dec 17, 2008 2:42 pm 
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Thanks a lot.

Do you give permission to publish it on a Brazilian Forum(with your credits of course)?

Leandro


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PostPosted: Wed Dec 17, 2008 4:17 pm 
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Landim wrote:
Thanks a lot.

Do you give permission to publish it on a Brazilian Forum(with your credits of course)?

Leandro


Sure :lol: and without credits too. :lol:

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Biomechanical spreadsheet. Sizing&Fitting.

http://weightweenies.starbike.com/forum ... 8e319d185b


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PostPosted: Thu Dec 18, 2008 12:51 am 
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Location: the Netherlands
Question: Is the inseam and elbow-middle finger distance enought data to determine setback, saddle height, drop and saddle-bar distance, or am i forgetting someting..... ?

Thx :)

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PostPosted: Thu Dec 18, 2008 9:42 am 
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Rezne wrote:
Question: Is the inseam and elbow-middle finger distance enought data to determine setback, saddle height, drop and saddle-bar distance, or am i forgetting someting..... ?

Thx :)


No. But it's a good guide. Of course it can never replace a professional fit but it's probably a good place to start off.


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PostPosted: Thu Dec 18, 2008 11:06 am 
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It´s enough because there is a fixed proportion with other measures in the top part of the body (trunk). I tried to simplify it the most i could. With 2 measures you can fit your bike very well. I have a more complicated spreadsheet considering trunk length, frame angles and the height of your shoes and pedals, but it´s a matter of few milimiters, so i decided to publish the easiest one.

Just fit your bike according to the s.s. and feel the difference, then you can do minor adjustments (no more than 1 mm everytime), till you feel completely ok.

For example, i calculated "the best stem lenght" as an aproach, for setback or non setback seatpost (mtb-road). It´s not very accurate, because i haven´t considered frame angles, but you will find that your best stem length is exactly what i suggest.

The correct procedure is this one. (if you have the right frameset size or at least not very wrong)

1.- Fit your saddle height
2.- Fit your saddle-b.bracket setback ´
3.- Fit your saddle nose- handlebar axis lenght, and choose your best stem length according to your top tube length.
4.- Fit your saddle - handlebar height.

That´s all. I´m not a newbie and this is not just another internet fake, i´m engineer and cyclist till 1990, give me a chance and your body will thank it to you :lol:

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Biomechanical spreadsheet. Sizing&Fitting.

http://weightweenies.starbike.com/forum ... 8e319d185b


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PostPosted: Thu Dec 18, 2008 11:46 am 
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All the above I do not argue however there are things that the spreadsheet cannot cover. Leg length discrepancies, pelvic asymmetry, spinal issues, cleat positioning etc.

I am sure that there are some who will find the fit fine for them.

However human beings are by nature asymmetrical and not perfect and will not always fit to formula.

I still maintain that it is a good guide and the amount of work put into the spreadsheet is evident.


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PostPosted: Thu Dec 18, 2008 1:46 pm 
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Location: Australia
I'm hopeless with computers, and cant seem to be able to get them to open.
Keep being told that the "CRC integrity test failed. The archive file is corrupted and cannot be opened."
I've tried downloading them twice, same thing.
What am I doing wrong???


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PostPosted: Thu Dec 18, 2008 4:27 pm 
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I have downloaded right now and it works, try it again. And remember you need winrar ;)


Winrar link was broken, now it works.

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Biomechanical spreadsheet. Sizing&Fitting.

http://weightweenies.starbike.com/forum ... 8e319d185b


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PostPosted: Fri Dec 19, 2008 8:51 pm 
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I say it again especially for "Tapeworm" ..... this is a very good guide-line to start with!

All systems are guide-lines no fit is exact.

_________________
My bike is Italian so it is Nervosa and of course has Anorexia I like them thin!
GIOS "New" Carbon Ultra 2006 Campa Record+Special parts.
GIOS "New" A90 2008 Campa Record+Special parts. My winter and vacation bike.


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PostPosted: Fri Dec 19, 2008 10:13 pm 
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Amadeus wrote:
I say it again especially for "Tapeworm" ..... this is a very good guide-line to start with!

All systems are guide-lines no fit is exact.


Isn't that what I said?


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PostPosted: Fri Dec 19, 2008 10:31 pm 
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Sorry:..... didn't read the end of your last post.

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My bike is Italian so it is Nervosa and of course has Anorexia I like them thin!
GIOS "New" Carbon Ultra 2006 Campa Record+Special parts.
GIOS "New" A90 2008 Campa Record+Special parts. My winter and vacation bike.


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Posted: Fri Dec 19, 2008 10:31 pm 


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