Am I being dense?

[Paintersteve]

So I’m now looking to change the rear shock out on my slabbie 1100 

ive read about doing a swap with an r6 shock that’s relatively straight forward.

having discussing this with a friend of mine who races r6s he replied I have one that’s never seen action as it came off a brand new bike in 2017 to be replaced for a race shock. 
struck a deal obtained said shock.

Having now compared this shock to my stock slabbie shock 

the bottom mount is completely different and is too short anyway. 
the question is.

is there a bracket that needs making to make this work or have I got the wrong shock? 
 

[Blue]

I used R1 shock on 750 

[Dezza]

I think some of the earlier r6s have the same bottom mount design as do the slabbies so my guess is you've accidentally bought a shock from the wrong model .

[dupersunc]

You need the pre 2006 r6 rear shock.  You need to narrow the lower eye a few mm to fit.  I've only fitted one to a 750, which works really well.  Not sure how well it works out length wise on an 1100.

[clivegto]

1100 slabby shock is longer than the 750. I used an early r1 shock on my 750.

[Paintersteve]

I think I might have devised a remedy 

I have an engineer/ fabrication mate I’ll get to weld a treaded insert on the bottom of the r6 shock to run a rose joint? 

[Joseph]

I would ask your mate to have it back or sell it and buy the right year part. It's just a standard shock not exactly a race pro Nitron or Ohlins ttx