Author Topic: New front fork design - evolution or revolution?  (Read 5321 times)

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New front fork design - evolution or revolution?
« on: October 17, 2008, 09:57:09 am »
I'll start by saying I haven't got a pic of this but will try to find one.  A recent US dirt bike mag had an article in it about a new design for front forks which sounded quite naff.  Springs at both ends!  ie, you have a chrome slider in the 'middle' of each fork, with fork legs at both ends of it, and with springs at both ends too (enclosed within each leg). 

The lower leg/spring has lesser spring rate, to absorb small bumps, while the upper is for big bumps.  when fork hits a small bump, only lower gets activated.  when hits big bump, lower moves then upper.  benefit?  the lower finishes first and can start to rebound sooner and independently, keeping wheel in contact with ground more. 

no independent testing has been done yet, but the develop reckons it gives you front end grip and ride like nothing else.  they reckon give it a few years and they'll all have em (ie, his registered design.....).  sound alright?

YSS

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Re: New front fork design - evolution or revolution?
« Reply #1 on: October 17, 2008, 10:22:05 am »
Pics please , quick , quick ;D

mx250

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Re: New front fork design - evolution or revolution?
« Reply #2 on: October 17, 2008, 11:00:27 am »
Seems interesting, thinking outside the square. Give us pixies.



 ;) :D ;D 8)

Re: New front fork design - evolution or revolution?
« Reply #3 on: October 17, 2008, 12:02:10 pm »
i knew i was right to plead no pic up front  ::)

will scan and upload over weekend.

Offline Graeme M

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Re: New front fork design - evolution or revolution?
« Reply #4 on: October 23, 2008, 09:06:40 pm »
OK, here's a piccie:


YSS

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Re: New front fork design - evolution or revolution?
« Reply #5 on: October 23, 2008, 09:08:10 pm »
Its the inside I would like to see  ;D

Offline caps 999

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Re: New front fork design - evolution or revolution?
« Reply #6 on: October 23, 2008, 09:54:27 pm »
i saw that article wierd looking things
MUGEN power

Offline Nathan S

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Re: New front fork design - evolution or revolution?
« Reply #7 on: October 23, 2008, 10:15:02 pm »
At its simplest, it sounds like an elaborate way to fit dual-rate springs.
At the most complex, it sounds like variation on a KTM PDS set up.

I reserve the right to be completely wrong, depending on what's inside, but based in the information at hand....
The good thing about telling the truth is that you don't have to remember what you said.

Re: New front fork design - evolution or revolution?
« Reply #8 on: October 24, 2008, 08:44:13 am »
yes dual rate but each can move independent of the other.  i like it!  its a bit like the first suzi full floater design, with the spring compressed at both ends....except different....

YSS

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Re: New front fork design - evolution or revolution?
« Reply #9 on: October 24, 2008, 09:08:32 am »
What is the difference when you compress the different ends ?  I glad to learn something.

Re: New front fork design - evolution or revolution?
« Reply #10 on: October 24, 2008, 02:27:56 pm »
well they're on different ends of the bike, silly.   ;D ;D

ummmm.....different also....because....there's two springs in there, at both ends of the slider....so can move independently of each other in response to different whacks....unlike the 'floater where there's one spring squished at same rate at both ends.

YSS

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Re: New front fork design - evolution or revolution?
« Reply #11 on: October 24, 2008, 05:46:51 pm »
HMmmmmm, please tell me more  ???

oldfart

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Re: New front fork design - evolution or revolution?
« Reply #12 on: October 24, 2008, 06:23:25 pm »
Walter , I can hear your brain ticking . gimmme gimmme a look inside  ;D

At a guess it has one spring with dampers top and bottom

Offline asasin

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Re: New front fork design - evolution or revolution?
« Reply #13 on: October 24, 2008, 07:10:19 pm »
Asimilar idea was tried back in the day with a small leading link on the frunt of the forks?Nothings new  :D ;D
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Offline GMC

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Re: New front fork design - evolution or revolution?
« Reply #14 on: October 24, 2008, 07:34:16 pm »
I've got a new idea myself. It involves a slider inside a slider inside another slider and uses 3 sets of springs. A soft spring to soak up the small bumps, a stiff spring to soak up the big hits and a medium spring to soak up the medium bumps.
Don't bother trying to order any though as I'm already working on another new idea that involves four springs and.......


 ;D ;D
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