Any interest in S1000RR rear shock adaptors?

[knumbnutz]

No because it is slotted in on the inside

[Stu99]

Will this be an issue????
If you recess the plates to keep the shocky fork Inplace and stop it rotating in the plates themselves you would be relying on the integral strength of the thickness of the shocky fork material to take any lateral movement???

When the shocky fork is bolted straight on the relay arm as in std trim, any movement is taken in a downwards, upwards motion due to only the 1 singular pivot point instead of two with the adaptor plates method .
Quote Julius Sumner Cobba

Wait for it wait for it

I can't work it out Cobba, I keep getting a bolied egg stuck in the shock.

[knumbnutz]

Well this would be an issue! B-)

[cobbadiggabuddyblooo]

Well the energy is spent...
Don't know about the viscosity of egg yoke and egg white as shock oil Stu. Might work like low and hi speed compression..
I thought you where placing a spacer between the shock fork and using a plate on either side of the outside of the shock fork down to the relay arm..
...

[Rich]

nice looking shock, I have a R6 one to fit in mine, but just to throw another idea into the pot......

Would it be better fabbed from steel?

[Stu99]

Well the energy is spent...
Don't know about the viscosity of egg yoke and egg white as shock oil Stu. Might work like low and hi speed compression..

The yolk is gold in colour and therefore made by Ohlins, so it will work just fine.

Sorry, MV, Friday silliness, i will stop it now.

[knumbnutz]

the material (from what I can tell from the photos) is cast aluminium. Using plate or billet aluminium is already a step up in strength.
The main force is the spring pushing the swingarm down or the swingarm pushing the shock up, either way the force is acting on the same place with the plate in.
So if the material is the same thickness or more and at least the same strength, then I can't think of any reason why it wouldnt be ok. Even at a pinch, it is around 20% more material in strengthening areas.

BTW, what is the length of the BMW shock and what is the length of the standard shock ?

I am going to order in a BMW shock, there are a couple of nice R6 shocks, but the BMW I think will be a better unit.
Brian was telling me they R6 shock may have issues on the track, but I would be certain the original japanese sink water would be the blame, its long known they use the finest sinkwater from the dishes but its not particularly good for shocks and forks.
Once I get the shock here and start measuring it up for the plates, I can let you know although I would dearly prefer to get them made on a CNC with precision rather than doing it by hand on a mill.

Of course steel will be a stronger material and bend rather than break, but neither will matter here as per above. On the other hand, this part of the shock hangs down like dogs balls and will surely get hit with rocks and water and rust quick.
Since these will be made from plate aluminium, you'll be able to anodize them - problem gone.

nice looking shock, I have a R6 one to fit in mine, but just to throw another idea into the pot......

Would it be better fabbed from steel?

[M.V.]

I initially scrapped the idea because there wasn't enough material between the two mounting points, plus leaving some space for the bushing to move if required (FYI, the were marks on my unit indicating the bushing had moved about 5mm up in travel) But, if we remove the material between the 2, there should be ample clearance. I guess the plates would need to be thicker to compensate...

My PC is back up & running, I'll whip up a quick model to see if it will work. This will only be 'work' from a dimensions point of view, we'd need someone with some engineering experience to see if it would be string enough for the task at hand. (Plus, the tolerances would need to be quite tight on the BMW mount, to keep it from spinning/slipping)

Off the top of head head, TRX shock length needs to be 345mm eye to eye, BMW is something like 315mm, R6 is 295mm or so. I'll confirm all the measurements when I get in the shed next, should be tonight.

[M.V.]

The yolk is gold in colour and therefore made by Ohlins, so it will work just fine.

Sorry, MV, Friday silliness, i will stop it now.

Detention!

index.jpg

[knumbnutz]

Thanks mv

[M.V.]

OK, here are some more details: eye to eye measurements of the shocks

R1: 290mm
BMW: 310mm
TRX: 340mm

(& 6th gen VFR if you're interested )

Low tech for now.

100_4780.jpg

100_4781.jpg

& the kicker:

rsz_1adaptor.jpg

The red line is the outer knuckle of the TRX linkage, the two small black circles represent the mounting bolts at the points they need to be (25mm eye to eye) & larger black circle on the right is the bottom of the BMW shock mount. The TRX linkage & the BMW shock will actually fit past each other as there is enough clearance, just, BUT there's only a couple of mm clearance between the TRX linkage (large red circle) & the BMW mounting bolt, you would need at +5mm more to be safe I think.

So, as much I'd like to try it out, I don't think it will work.

I have managed to work out how to fit the BMW shock to my VFR, so all is not lost

[knumbnutz]

It's not a big deal to add 5 mm to the bracket. I am dropping at least 20mm at the front running R1 forks and no the vfr mount on the swingarm is not the same height either. So it will be fine.
So all is still good.

[M.V.]

Ah ok, if you're running the VFR SSA & not worried about standard geometry, then none of this applies of course

What"s the overall shock length you need & what bottom linkage are you using?

[cobbadiggabuddyblooo]

Yes swing arm length is longer too so throws it all out the window with your relay arm rising rate and spring weight.

[knumbnutz]

Until I have all the bits in front of me I won't know. Even then, every part on the rear will be different, so I may not even need an extension. But I remember owning one in 96 and they weren't the fastest turners so I will probably try to get at least the smallest amount of riser in there and maybe make a set of variable length dogbones.