Hello All,
This is a what bike will do it question.

I have the chance to travel in a small bunch from Alaska down to the pointy bit at the bottom of South America.
Projected dates late August to end of November. Route will be down the Western seaboard.
Some going have [or plan to have] BMWs in varying sizes.
My problem is that I have one leg shorter and less useful than the other and walk with a stick, as motorcyclists you don't need to ask! I can ride okay [ friends opinions vary!] but climbing onto a tall trailie is flaming hard work.
Have travelled long distances no problems on Russian "yellow" roads East towards the Urals, using a Hinckley Bonneville. I accept that the Bonny is too heavy and I would prefer not to go through the chain thing again-so no go.
I read of someone doing it on a BMW "airhead" R100RS, can that be true? I have one of those in good order my possession and I am also looking at the small Moto-Guzzi, do you know it's almost the same weight as Yamaha's 660 Tenere?

So in essence:
Question. With decent preparation, what "roadster" would be a good compromise for a top to bottom crossing of S.America, or would you council against such an undertaking?

I am determined to go but want to leave the step ladder at home!

I would welcome your comments. Rob.