Pinned FZR R6R rear shock conversion

NOTE edit for clairty - this is for a 3LN1 - further into the thread someone with a 3LN3 encountered issues with my dog bone length.

Now I've trawled through the impex catalogues for the 3LN1, 3LN3/5 and 3LN6/7 - they give the same part number for the linkage for all of the above
Impex may be in error, but unless someone can compare the linkages from a 3LN1 and 3LN3/5/6/7 the method I would use to determine dogbone length is to prop the back at the correct height, remove the OEM shock, fit the new one and measure what you need for the length of the dogbones


In the interest of sharing knowledge I'm going to make this howto, my links and documentation are long gone at least two laptops ago...

OK guys, no info to hand because it's been a long time since I did this conversion, but the old girls is about to be dragged out of storage and I'll run back through what I did.

I forget which year R6 shock it was, it's been that long.
It was a straight fit up onto the mounts, the dogbones need to remade shorter.

This is where I deviated from the recipe because I went shorter on the dogbones than what was required to get back to standard ride height, because I went one wider on the rear tyre and one lower on the profile. I liked the result.

So I'll get some figures and see what I can recall about the process in coming days

peace out

Glenn

 

OK so I took some measurements and photos

My dogbones are 117.5mm long hole centre to hole centre. They are crude because I made them out of steel flat bar that I had to hand, I had always intended to remake them out of shiny stainless when time permitted, that just never eventuated



Please keep in mind that the shorter than normal dogbones went it concert with a 140/70 - 17 rear tyre.



Also you can see the amount of material I removed from the battery support to accommodate the upper shock reservoir.





The most difficult part of the process if you can call it that was finding an R6 shock locally for a good price, heaps of them in the US, shipping costs are the killer because of the weight.
IIRC I paid $120 which was great.

 

OK so it's all coming back to me, it needs to be an '06-'07 R6R rear shock - I suspect that '08 onwards MAY work, but there may be other differences in later models making them unsuitable so I wouldn't get one sent from OS without checking thoroughly beforehand to avoid dsapppointment

The R6R is important if you're trawling ebay US because there's an R6S which doesn't have the lower clevis which is needed for the Fizzer lower suspension linkage

peace out

Glenn

 

mines is a 3LN1, perhaps safe to assume it will work on 3ln3 onwards etc

I am uncertain as to whether or not the changeover would work on a 2KR, if it uses the same upper and lower mount points and types - on the shock - eyelet upper and clevis lower then it should work -> if the length is approximately correct and the dogbone length can be altered to get ride height back to where it should be.

My memory on the differences between R6 shocks from different years isn't 100%, however I believe earlier years had different lower mounts - eyelets instead of the clevis making them unsuitable.

Check this page - seems to indicate convincingly that 2006 onwards as the 2005 has different mounts

http://www.r6-forum.com/forums/56-suspension-settings/383833-2006-r6-rear-shock-2005-r6.html

peace out

Glenn

 

That's the business right there

Mr Grey did you ever get around to doing the upgrade yourself?

 

If it will fit onto the SRX - I say GO GO GO - you won't regret it

 

to regain standard ride height the dog bones should be reduced from 130mm hole centres to 122mm hole centres - I went shorter to change steering geometry slightly.

All changes I found to be positive

BTW you don't modify the dog bones - you will need shorter ones so there's no irreversible modifications

 

OK you've just caused the collision of some output from firing neurons within my memory...

I had to put on a single washer each side of the upper shock eyelet to fit within the FZR mount snugly and not move side to side.

That said however, the width difference was nowhere as large as what you've got there - what's the actual width difference as measured?