Report on "Progressive" fork kit

frez

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Jan 25, 2014
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There's plenty of information out there just a google search away. Of course, some of it is just plain nuts.

Yamaha have to design suspension that works for loads from 100 to 460 pounds, and as the saying goes, you can be a jack of all trades but a master of none, and the Yamaha suspension is a jack of all trades. If you want better, then springs, oil viscosity, air gap, fork internals, spacers are all candidates, and if you are planning on varying loads and terrain then you are back into the realms of making compromises and becoming a jack of all trades again.
 

Dallara

Creaks When Walks
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scott123007 said:
More fuel for the fire for the know it all's...http://www.dirt-bike-secrets.com/progressive-springs.html :)

Oh, yeah... Now there's a site that folks like Nick Stolten at Stoltec, Dan Anderson at Traxxion Dynamics, the techs at Ohlins, etc. all flock to for the latest in suspension design help! A site owned and written by a South African girl dirt bike rider! ::025::

Just take a look here - http://www.dirt-bike-secrets.com/privacy-policy.html - and you'll see the following:

Tatjana Hayward
PO Box 98
0230 Skeerpoort, South Africa
info@dirt-bike-secrets.com
www.dirt-bike-secrets.com

And if you're interested you can take a look at here picture and read some more of her thoughts here - http://www.dirt-bike-secrets.com/ - on the site's home page.

Yep, reading a few of her articles and thoughts on various pages you can readily see that she did, indeed, read a few dirt bike magazines in her career, definitely making her a suspension expert.

Guess maybe all those other suspension specialists like Ohlins, Traxxion, Stoltec, etc. have been doing it all wrong putting straight-rate springs in their adventure/dual-sport bike set-ups and should look to Tatjana Hayward for more insight!!! ::025::

Dallara




p.s. - btw, she posts on ADVrider, too, and more than once she asked for suspension advice for KTM she owned. Right now she owns a 2009 Bet Trials bike and a 2011 Yamaha YZ250 set up for enduros, Oh, and she's a "Farmer" by trade. Look for yourself here - http://www.advrider.com/forums/member.php?u=56756

~
 

Dallara

Creaks When Walks
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avc8130 said:
Stalker much? :-[

ac

Google is your friend! ;)

5 minutes there and you can find out a quite a bit about almost anybody.

But ya' know, AC... Come to think of it, maybe we should all start going to Tatjana for all our motorcycling and suspension questions, don'cha' think? ::025::

Make sure Nick knows about her!!! :D

Dallara





p.s. - Honestly, i simply cannot believe somebody used her as a suspension reference...

~
 

viewdvb

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Jul 11, 2012
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Clacton on Sea, Essex
Thanks again for the discussion. Food for thought. Nothing to do with the matter at hand but about the way threads progress generally... It is always interesting to hear other opinions but the problem with the internet is that lots of contributors state their opinions as facts. Wikipedia and dirt-bike-secrets.com are examples of opinions expressed in this way without any special qualification though we shouldn't dismiss experience as a qualifier. Hence the invitation to post qualifications so your opinions can be evaluated. No prizes for doing so but what have you got to lose? You want your contributions to be taken seriously and they would be more convincing. Otherwise, I suppose we should mentally insert "In my opinion" before all posts, however factual they purport to be though comments like "my forks ride awesome" and "yours are crap" don't really contribute much even as opinions.

A serious question... the note that some off-road bikes have returned to air springs was puzzling. Anybody know why they would do that? The consensus here seems to be that progressive springs are bad so super progressive air can't possibly work - can it?.
 

Nearly Normal

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Re: Report on "Progressive" fork kit

snakebitten said:
I love this bike.
I love this board.
And I'm crazy about this subject.
But some threads just feel a bit wound tight. Lol
This one sure does.
Plus 1... ::017::
 

snakebitten

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Re: Report on "Progressive" fork kit

Posting our qualifications on the same internet that is loaded with bogus info? :)

Besides, even if it really is true that I have been a network engineer for decades, doesn't mean you should believe I am right about anything network related. I say that because every night I go to sleep, before I wake up some genius has invented a better way. So I wake up obsolete often. :)
There is just so much to learn.
 

Mzee

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Mar 17, 2013
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Johannesburg
I am just a humble rider and don't all the technicalities you refer to with respect to suspension. But I can feel the difference depending on what I do with the settings, oil, and type of spring.

What about Yamaha Suspension oil S1, what weight is it and is any effective compared to other oils?
 

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avc8130

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North NJ
Mzee said:
I am just a humble rider and don't all the technicalities you refer to with respect to suspension. But I can feel the difference depending on what I do with the settings, oil, and type of spring.

What about Yamaha Suspension oil S1, what weight is it and is any effective compared to other oils?
It's really tough to say, I think Dallara pointed out that suspension oil viscosities vary a fair bit between brands. Most equate the Yamaha with a typical "5W" from a premium brand.

ac
 
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