shock linkages

Message

roosterNI · #1 Post by **roosterNI** » Sat Oct 09, 2010 1:41 pm

i know i know, its been covered a thousand times, but...... i've been using a tuono rear shock, triangles and dogbone with standard falco swinger, i noticed the bottom of the shock touches the dogbone whenever the rideheight is screwed up, this couldn't be right, i have the arrow on the triangles pointing from the swingarm bolt to the bottom shock bolt. is this correct? the bike was handling fine in my opinion, but i just like the back jacked up. i fitted the linkages in the first place so i'd be pretty confident there on the correct way. any ideas? oh an i've the mille swinger now put on, but shouldn't make a difference.

D-Rider · #2 Post by **D-Rider** » Sat Oct 09, 2010 2:10 pm

Sounds correct (except for the contact) ...... a picture would help to see whether anything is wrong

roosterNI · #3 Post by **roosterNI** » Sat Oct 09, 2010 2:43 pm

will do

roosterNI · #4 Post by **roosterNI** » Sat Oct 09, 2010 5:36 pm

[/img]
as you can see i would have to screw the shock lenght way back to get the dogbone on. couldn't be right, right?

D-Rider · #5 Post by **D-Rider** » Sat Oct 09, 2010 7:38 pm

Which shock is it?
(I'm guessing Yellow spring Sachs - the one I've no real experience of)

Whichever, the bottom of it looks a bit odd - but I can't see enough of it.

Also there is a limit beyond which you're not supposed to extend the ride height. What does the manual say for yours and have you gone beyond it?

Aladinsaneuk · #6 Post by **Aladinsaneuk** » Sat Oct 09, 2010 8:57 pm

shock is definitely over extended imho

and i would suggest that the shaft is bent/bending.....

roosterNI · #7 Post by **roosterNI** » Sat Oct 09, 2010 9:09 pm

first picture is a bad one, yes yellow spring sachs shock.

roosterNI · #8 Post by **roosterNI** » Sat Oct 09, 2010 9:13 pm

i have 2 of these shocks and the one thats not in the bike will only extend so far, i thought that would've been a safety feature of it, thing is even with the shock screwed out this far the bike dosen't feel that high, it definitly is way taller than standard though.

Aladinsaneuk · #9 Post by **Aladinsaneuk** » Sat Oct 09, 2010 10:09 pm

out of interest, in what order are you bolting things in? wonder if you should be fitting all bolts to triangles, then adjusting the height.... with the shock/back wheel supported

roosterNI · #10 Post by **roosterNI** » Sat Oct 09, 2010 10:27 pm

the only way i can get the shock in is to wind the height back off, when i origionally fitted the shock and linkage the shock was at standard height and fitted no problem, but as i started to increase the rear ride height i noticed it was touching the dogbone, in fact if i stand behind the bike, and compress the rear suspension i can actually hear the shock hit the dogbone. i have been riding like this so a few months with no handling problem, probably due to when i sit on the bike the shock and dogbone move away from each other, but it still dont seem right.

Falco9 · #11 Post by **Falco9** » Sat Jan 01, 2011 11:23 pm

I'm almost (I say almost) 100% certain that you have a pair of Falco side plates fitted with a Tuono / Mille dogbone looking at your pic

I also have just fitted a Mille shock and dogbone and the side plates do not look like yours, they are a lot smaller with different dimensions

I fitted mine today with no problems other than lifting the rear by a good 25mm, but I have my shock on min ride height though, as when I tried it at full height the bike couldn't be supported on the std side stand such was the angle of lean.

Where I may be wrong of course is that I'm not 100% certain what the side plates look like on the 1st generation Tuono. My shock and linkages are from a 2006 Mille and I owned a 2007 Tuono so I know the linkages are the same as the one I have

Even if I'm wrong I'd very much like to know if you got a solution and also what side stand solution have you used (my main reason for doing the search that found this thread)

F9

#12 Post by **mangocrazy** » Sun Jan 02, 2011 12:01 am

Falco9 wrote:I'm almost (I say almost) 100% certain that you have a pair of Falco side plates fitted with a Tuono / Mille dogbone looking at your pic

I'd second that. I suggest you measure up the dimensions in the following post and that will confirm what mix of parts you have:

http://www.apriliaforum.com/forums/show ... stcount=17

If, as Rich suggests, you have Falco triangles and a Mille/Tuono dogbone, I guess you'll need to find a set of Mille/Tuono triangles of the correct vintage.

But measure up the dimensions first to be sure...

D-Rider · #13 Post by **D-Rider** » Sun Jan 02, 2011 10:59 am

No they are definitely Mille triangles from pre-2004 yellow spring shock (or early shape Tuono)

Looking at your picture again, what is the fit like when the dogbone and triangles are bolted together? The triangles will have rotated round the top rear bolt and opened up the gap between shock and dogbone - though it's a bit hard to tell by how much.

#14 Post by **mangocrazy** » Sun Jan 02, 2011 11:20 am

If they are the 'correct' triangles, then I'd have to say that the ride height is way over-extended. Normally there is about 6-7 mm of available adjustment at the shock, which translates to roughly 25mm/1 inch at the wheel.

There's nearly 20mm of thread showing on that shock by my calculations, which is way too much. At least half of the thread that is visible should not be, in my view. Running the shock like that is simply asking for trouble; the forces going through those parts are quite frighteningly large.

If left as it is, this can only end badly.

#15 Post by **mangocrazy** » Sun Jan 02, 2011 11:34 am

I've just checked the spec sheet on my RSV Ohlins and the shock length is listed as 321mm + 6mm for ride height adjustment. The thread extends beyond the 6mm adjustment by a lot more, but there is a detent at 6mm to indicate where maximum adjustment is. This obviously isn't the case on Sachs shocks, but the same safety rule should apply.

The ride height adjustment needs reducing to at least half its current value, or bad things will happen.

Do it now.