I have not run anything other than a 150mm Tourance, but looking at the Metzeler spec chart I think a 140 would be a tight fit. The 150-section tire has a max diameter of 650mm, but the 140-section tire has a max diameter of 667mm. That's .67 in, which eats up half the clearance between the rear tire and the lower shock mount.
Too tight for my liking. What tire were you looking at in 160mm-section?
2003 BMW R1150GS
mcstark screwed with this post 10-06-2012 at 07:31 AM