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How does Yamaha Speed Sensitive Suspension work?

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I talk a big game to my friends about how my yz has the sss. Trouble is I don't fully understand what it does and how it does it. This is my best explanation so far...ImageUploadedByThumper Talk1453247982.316288.jpg

A simple explanation would be great, but I'll take a complicated one too.

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All suspension is speed sensitive.  That's how dampers work.  Damping force changes in proportion to how fast the suspension is moving.  SSS is just a marketing thing.

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All suspension is speed sensitive. That's how dampers work. Damping force changes in proportion to how fast the suspension is moving. SSS is just a marketing thing.

Hmmmm interesting. Sounds like something a non-Yamaha owner would say. Jk Edited by Posridin559

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Didn't some older fork designs have a 'travel control valve', to increase damping the deeper it got the stroke, no matter if stroke speed was fast or slow?

 

As for 'SSS', I figured got it's name by the floating mid-valve design, to simplify the reasoning:

at slower suspension speeds the fluid is by-passing the midvalve shim stack, most of the damping done is by the base valve.

At faster speeds, the float gap closes up and the mid-valve kicks in, increasing the overall damping.

 

About to service a set of 2007 Showa forks off my friend's CRF250R,

guessing the internals will mostly look exactly like the SSS forks from my YZ125.

Edited by mlatour

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Hmmmm interesting. Sounds like something a non-Yamaha owner would say. Jk

Check his Sig...

Adam might be one of the few people around who actually knows something about suspension. Well enough so to make a good little business out of it...

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The 05 had a large bottoming system but that also position sensitive ,all suspension is speed sensitive as saud before

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Check his Sig...

Adam might be one of the few people around who actually knows something about suspension. Well enough so to make a good little business out of it...

Totally. I was just joking around. That's the kind of expertise I'm looking for when I come to thumper [emoji106]

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All suspension is speed sensitive.  That's how dampers work.  Damping force changes in proportion to how fast the suspension is moving.  SSS is just a marketing thing.

Agree 100%...

While the new "SSS" 06+ KYB's is good suspension there is nothing special about it & the spring Showa's reworked are just as good in my experience.   In my case I'm running an 07 showa b-kit that is a notch above the SSS  KYB's ridden.   

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