I brazenly pinched this from another site as I thought it may solve one or two issues that the sports bike riders amongst us may have for those short to medium, day long journeys.
Corbin are thinking of making
these to fit Ducati motorcycles so bookmark it and check back every so often. They do look quite unassuming but only carry 7ltrs.
The example on the site shows a Triumph 675 and for some reason does take a while to load. Click on the picrure on the right hand side which shows the 'trunk' as they call it in place of the rear seat.