Will this suspension linkage fit?

Message

Olig7475 · #1 Post by **Olig7475** » Thu Jun 11, 2009 3:08 pm

on my 2001 Falco with stock swinger with the yellow sachs shock. The linkages are off a 2004 RSV-R Factory?

Cheers all
Oli

Syltiz · #2 Post by **Syltiz** » Thu Jun 11, 2009 3:26 pm

I believe not. I think you are after linkages with an equaliteral triangle. There is a comprehensive guide somewhere - I think on AF1

#3 Post by **mangocrazy** » Thu Jun 11, 2009 3:45 pm

This is the one:

http://www.apriliaforum.com/forums/show ... p?t=162440

I think the golden rule is that you use the triangles/dogbone that correspond to the model year of the shock you're using. For the yellow spring Sachs I think that means 2001-2003 dogbones and triangles (but the AF1 thread will confirm or deny).

Syltiz · #4 Post by **Syltiz** » Thu Jun 11, 2009 3:48 pm

mangocrazy wrote:This is the one:

http://www.apriliaforum.com/forums/show ... p?t=162440

I think the golden rule is that you use the triangles/dogbone that correspond to the model year of the shock you're using. For the yellow spring Sachs I think that means 2001-2003 dogbones and triangles (but the AF1 thread will confirm or deny).

I think that would be for the white spring Sachs.... yellow spring Sachs I think will only go with Falco linkages which are the equilateral ones.

#5 Post by **mangocrazy** » Thu Jun 11, 2009 3:56 pm

Are you sure? This is what the above thread says...

1998-2000 RSV MILLE:

Any 1998 to early 2000 Sachs shock (black body/white spring) from an RSV will fit using the stock Falco linkage plates and dogbones. Features Ride-Height, preload, compression and rebound adjustment. Rebound is adjusted via small screw on side of shock body. Some riders find they have to shave/trim the schrader valve on the extended nitrogen canister to get the shock past the Falco subframe, but this is easy to do and many have found that the shock simply slips right in without the need for modification. Traxxion Dynamics can service, revalve and rebuild the Sachs shock with great results.

Stock spring rate Sachs = ~820 lbs./in. or 14.5 kg/mm.

Compatible rider weight on stock Sachs spring: ~175 lbs.

Recommended spring rate for ~240 lb. rider: 950 lbs./in. or 17 kg/mm.

2001-2003 RSV MILLE:

Any 2000.5 to 2003 RSV Sachs shock (gold & silver body/yellow spring) or Ohlins will fit, but you must use the matching triangle linkage plates and dogbone from a 2001 to 2003 model RSV, as well. 2003 models have a different part number for the triangle plates, but the difference is negligible. The shorter nitrogen canister on the 2001-2003 Sachs shock means no modification is needed to fit this shock behind the Falco subframe. These shocks also feature ride-height, preload, compression and rebound adjustments. Rebound was changed to a small click-dial on the bottom of the Sachs shock and can be adjusted by hand. Both the Ohlins and Sachs shocks use a significantly lighter spring rate than the 1998-2000 versions due to very different linkage ratios. Traxxion Dynamics can service, revalve and rebuild the Sachs shock with great results.

Stock spring rate Sachs = ~525 lbs./in. or 9.5 kg/mm.

Stock spring rate Ohlins = ~542 lbs./in. or 9.7 kg/mm.

Olig's shock is the yellow-spring Sachs which (according to the link) was fitted to the 2001-2003 RSV Milles. If so, he should be using the triangles/dogbone from a similar vintage RSV.

At least, that's how I read it. I have an Ohlins from a 2003 RSV and I'm using 2003 triangles/dogbones, if that's any help.

Syltiz · #6 Post by **Syltiz** » Thu Jun 11, 2009 4:18 pm

Yes... Im sure im wrong

DavShill · #7 Post by **DavShill** » Thu Jun 11, 2009 5:42 pm

Yes I think everyone will agree he only shock that will not need replacement triangles and dog bone is the white spring RSV Sachs shock. I've got a 2002 Ohlins and am waiting for some appropriate linkages to come up too.

Olig7475 · #8 Post by **Olig7475** » Thu Jun 11, 2009 5:56 pm

I only have the Linkages so far! I was looking at a yellow 2004 sachs shock below:

http://cgi.ebay.co.uk/APRILIA-RSV-RSVR- ... 7C294%3A50

Will it to the Falco though?

Cheers
Oli

#9 Post by **mangocrazy** » Thu Jun 11, 2009 8:45 pm

It might work, but you're better off getting one from a 2001-2003 bike, then you KNOW it's going to work. Like this one:

http://cgi.ebay.co.uk/APRILIA-RSV-RSVR- ... 7C294%3A50

or this one:

http://cgi.ebay.co.uk/Aprilia-RSV1000-R ... 7C294%3A50

or this (Ohlins) one:

http://cgi.ebay.co.uk/Aprilia-rsv-mille ... 7C294%3A50

As long as your linkages/dogbone are off a 2001-2003 bike, all the above will work fine.

D-Rider · #10 Post by **D-Rider** » Thu Jun 11, 2009 9:37 pm

mmmm 2004 .... not an easy one.

Basically the simple story on rear suspension is as follows.

Swingarms:

The Falco Swingarm and Pre-2004 Mille Swingarm share essentially the same geometry.
That means that whichever shock and linkage combination work on one will work on the other

The 2004 onwards Mille Swingarm is not the same geometry and the shock and linkages that are fitted to that bike really need to have that swinger also transplanted to the Falco in order to work properly.
This swinger swap is possible (Martin Poll for one has done this) but is not as easy as the other Mille swinger swap.

Linkages:

Early Milles (up to 2000.5 I think) and the Falco share the same linkages (sort of an equilateral triangle). Therefore these linkages work with Blue or White spring sachs shock, the Ohlins aftermarket shock designed for the Falco and (I seem to recall) the 2000 MilleR Ohlins.

The Yellow spring Mille sachs and the MilleR ohlins from the 2001 to 2003 bikes use a different linkage with a longer dog bone and triangles that are more Isosceles in shape. These transplant to the Falco as a set (probably the most common swap)

The 2004 onwards Mille has a different linkage and shock and as I mentioned, needs the 2004 onwards Mille swinger.

I guess it may be possible to get it to work without (I don't know) but it might not be easy to get it set up and you probably won't get the best out of it. I wouldn't try it myself while there are easier, proven options available.

Olig7475 · #11 Post by **Olig7475** » Thu Jun 11, 2009 9:48 pm

The problem is trying to get hold of linkages for 2001-2003 RSV Mille, I saw the 2004 linkages and thought they might fit!!! ooops.

Oli

D-Rider · #12 Post by **D-Rider** » Thu Jun 11, 2009 10:03 pm

Oli, do you have the dimensions of the 04 linkages and dog bone?

I do have some triangles of the pre 03 shape being made up (Daveshill has been waiting patiently for months for these .... it's all favours from mates .... but they should arrive any day).

I'm just wondering how similar to 03 the 04 onwards triangles and dogbones are and whether we can mix and match a bit.

lf you can measure up the 04s, we'll investigate.

Olig7475 · #13 Post by **Olig7475** » Thu Jun 11, 2009 10:07 pm

I'll get um measured up, they should arrive tomorrow!

Cheers DR

#14 Post by **mangocrazy** » Fri Jun 12, 2009 9:24 am

The triangle/dogbone dimensions for Falco and 2001-2003 Mille are given here (give or take a mm):

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

I also remember reading somewhere that one of the things that was changed on the 2004> dogbones/triangle was that the dogbone width was reduced from 36mm to 32mm and the triangle plates were made less substantial. How true this is, I'm not sure.

When you post dimensions up of the 2004 parts Oli, please include the thickness of the triangle plates as well.

#15 Post by **mangocrazy** » Fri Jun 12, 2009 9:28 am

On a completely different tangent, has anybody ever re-sprung a 2001-2003 Ohlins or Sachs to work with the Falco linkages? Spring rate on the 2001-2004 Ohlins is 540 lb/ins and is 800 lbs/in on the Falco Sachs.

Just interested, is all...