brother in buells wrote:
The frame from the (early) xb-s and xb-r types are narrower at the upper mounting point for the subframe
the difference is 1,5 to 2 centimeters.
So you could machine some material off at the upper mounting point ,but that's up to you!
Better and probaby easier to wait a couple of weeks or months and you come across a nice buell
(the riding season for the summer motorcyclists is almost over)
The ss/sst frame is 17.4 cm wide at that point
Odd then that the XBR subrame is the same part number across all years ...
...and the accessory seats for XBs fit all years ...
There may well be a difference between the SS and S frames though regarding seat and subframe fitment, as, IIRC the SS uses the X frame.
I cannot give you a definitive answer but as far as I am aware from the searching/reading I have done, it is possible to swap the seat subframes around - the biggest problem is the cost, if you have to buy the parts new (they don't come up second hand very often) reckon on about £600 at UK dealer prices.
You will need at the very least a new seat, frame rails, under tray, battery tray, seat lock bracket and cable.
Then all you need to do is work out how everything fits - a service manual will be extremely handy.
You may want to post this question on
BadWeatherBikers as they are more likely to be able to give you a definitive answer.