the GSes have 17" rear wheels. on the tire list, if it says G/S then there are 120/80-18s available. if it says GS there are 130/80-17s available.
I may have made it a little US-biased so far. The Mitas for example--I put them as hard to find tires but they seem to be pretty common in Europe and Australia.
It would also be nice to know the sizes people are actualy using on their G/S's, GS's, and ST's, as I am unsure of width clearence problems with some of the rear tyres (tires)
+1 on that. There are a lot of 140 tires that I haven't listed because I don't know if they'll fit. The clearance problems may not be as simple as width. I can fit 120/80 knobbies on the rear with no problems but 120/80 Distanzias rub my shock. I can still ride with them, but it has different clearances despite the same listed size.
I got an e-mail from another ADVer, drzgal, yesterday that said the Michelin AC10s, 80/100-21 front, will fit a 90/90 so I'm going to put them on the list.
thanks for the (translations)