Tire width measurement are actuals from inmates or my own bikes.
The rim dimensions are given as per factory, not measured.
G/S can also have a 2.50 x 18, just don't know when that happened. The front is 1.85 x 21 for both, G/S and GS.
Some of the above is fact, some is fiction, some is my personal imagination and some is just simple truth. [me]
... i'm not touring around the world, but neither are most of the guys i see running overloaded spam cans ... [bmwblake]
'72 R75/5 The Blues