No, but I am sure you can custom something up.
You cannot use the R3 'Touring' model seats that came out in 2008 onwards as they actually have a different and narrower rear frame to the Standard R3s, Classics and Roadsters.
BUT as the 'Touring' model did not exist prior there can be confusion as earlier seats for the Standard R3s, Classics and that also fit Roadsters often had 'Touring' used in the model name of the accessory seats used. There was also a fully accessory kitted version of the Classic called the 'Classic Tourer' sold.
The 2008 Touring model also came with accessory seats with the same square hole and backrest (covered in a different vinyl colour).
If you do a forum search using 'Riders Backrest' and my user name Ishrub and you should find lots of threads covering these issues.
