Check the photos of the r4 in gallerys you will see the r6 tail has to be done right and rear 3tj subframe has to be cut.. but looks nice.

viewtopic.php?f=36&t=4544

Yes it's Chris' race bike.
It had a different fairing on it too. But look at the saddle see how small it looks and how it's got black paint around it ?
We didn't say it couldn't be done just that it's not really worth the money and effort needed.

the seat hole from the r6 had to be fibreglassed in, wasn't the neatest but it was a track bike. It moved arund a bit because of the short cut subframe, but again it was never going to be sat on! The front fairing had an interesting mounting system too.