For all the suspension geeks out there (mainly for Socket)

R

Ryan

Radministrator
Here's a pretty good look at the '04 Specialised 6-bar link bike

Personally, I don't get it. Looks kind of like a simple swingarm with a walking beam tacked on to it though what this achieves is beyond me so maybe someone else can come up with an explanation.
The pic was taken from the ridemonkey forums, but originally comes from GoHuckYourself.com, so a big thank you to them for the spy shots.
 
F

frank-oi

Likes Dirt
i think that it's workin in the opposite way to a giant DH. but then again im not to sure. and i don't thnk that i can explaine it.

complex
 
K

kalem

Likes Bikes and Dirt
It looks like a single pivot, except it's attached to that top section, which would change the wheel path, braking etc. Need to see what's behind his foot i reckon...
 
S.

S.

ex offender
kalem said:
Need to see what's behind his foot i reckon...
Click to expand...
No ya don't, it's still an FSR link bike, cept now the shock is mounted from the chainstays instead of the upper link. You can see all the pivots.
 
Ty

Ty

Eats Squid
um, i can't see any piviot near the BB for the chainstay to be attatched to. it almost looks like a URT (maybe the piviot is behind his foot)? or maybe it's like the maveric mono link or what ever?
 
S.

S.

ex offender
?? The BB-area pivot is about 1" above the BB... I think it's just due to a blurry pic that you can't see the defined chainstay (I'm 99% sure the BB is on the front triangle).
 
R

Ryan

Radministrator
If you think of the whole "inner swingarm" part as just a modified chainstay, then Socket's theory makes sense, just a 4 bar with the shock mounted on the chainstays. There's a pivot right above the BB, so it looks like maybe a URT?
 
G

Ghost

Likes Dirt
That's fairly interesting, though I'm a little concerned about the four pivots surrounding the rear hub. Having them in line is likely to cause a lot of stress.

The bike also looks to be pretty heavy. I'd need to ride one before I could comment on anything else.
 
Gutty

Gutty

Likes Bikes and Dirt
It's not a URT, you can see the pivot just above the BB, a URT usually has the pivot just in front of the BB. I agree with Socket, it's just a standard FSR design but the shock is driven by the chainstay much like a normal single pivot(222, bullit etc). Note the shock angle, to keep it some what progressive i assume ??
I really don't see the point of it though, other than getting the shock a bit lower(ok alot lower) i don't see what it achives.

Edit: It does look to have very good standover clearance. maybe thats one reason for the design change.
 
Gutty

Gutty

Likes Bikes and Dirt
Gregg said:
That's fairly interesting, though I'm a little concerned about the four pivots surrounding the rear hub. Having them in line is likely to cause a lot of stress.
Click to expand...
Huh ? i only see 1 pivot at the back end(well 1 per side) just like a normal FSR. The furthest one back is the axle. :idea:
 
S.

S.

ex offender
Gregg said:
That's fairly interesting, though I'm a little concerned about the four pivots surrounding the rear hub. Having them in line is likely to cause a lot of stress.

The bike also looks to be pretty heavy. I'd need to ride one before I could comment on anything else.
Click to expand...
Intenses also look very heavy... looks can be deceiving.
 
G

Ghost

Likes Dirt
Gutty said:
Gregg said:
That's fairly interesting, though I'm a little concerned about the four pivots surrounding the rear hub. Having them in line is likely to cause a lot of stress.
Click to expand...
Huh ? i only see 1 pivot at the back end(well 1 per side) just like a normal FSR. The furthest one back is the axle. :idea:
Click to expand...
*Drinks stiff coffee and checks again*

Crap. :(

Well, that's what you get for taking a quick glance and replying.

It still looks heavy though... 8)
 
M

MrPlow

TMBC
Looks to me like a parallelogram almost. The top arm is just further forward than the bottom arm. Would allow them to place the top arm so low cause of the tyre clearance? (am I making sense?). the shock arm has a nice rising rate to it as well as being placed low in the frame, I personally don't like the orientation of the shock (shaft to top) as crap can get stuck there, not to mention the wheel driving mud into it. Turn it around I say, if those top and bottom arms are unequal (chances are) it would more likely create a virtual pivot point way the buggery out the front of the bike, I like VPP's, mmmmmmm, V10!!!!!!!
 
S.

S.

ex offender
SirVH said:
Looks to me like a parallelogram almost. The top arm is just further forward than the bottom arm. Would allow them to place the top arm so low cause of the tyre clearance? (am I making sense?). the shock arm has a nice rising rate to it as well as being placed low in the frame, I personally don't like the orientation of the shock (shaft to top) as crap can get stuck there, not to mention the wheel driving mud into it. Turn it around I say, if those top and bottom arms are unequal (chances are) it would more likely create a virtual pivot point way the buggery out the front of the bike, I like VPP's, mmmmmmm, V10!!!!!!!
Click to expand...
It won't have a virtual pivot point/centre of curvature way out in front of the bike. The near-parallelogram you refer to won't project a VPP/CC out in front of the bike, that's the IC (instant centre) which affects braking rather than axle path.

You also can't tell what kind of rate you're going to get (although it's a fairly safe assumption that it's a rising rate) just from the angle of the shock there. Turners (the 02 and older ones) look like they have a rising rate all the way, in actual fact they have a falling rate which progresses into a rising rate.
 
T

trobb

Likes Dirt
That looks pretty confusing but then i know, ive never seen one. If it does the job than im happy, i might be getting one of those bikes yayyyyyyyy!!!
 
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