Ramon,
I love the Renazco seat on my 640a and have 25k miles on it. The seat works great for me.
But...
This summer while traveling through Mongolia I went two up with a Mongolian woman on several tough on/off road rides.
My passenger had to constantly reposition herself because she slid forward with any braking.
I would suggest discussing the two up idea with Renazco if you go that way. I think you need to alter the design for two.
I am about 65 Kg and my passenger was 50Kg. We traveled without bags and she was good at balance but it was still some work.
You might consider heavier springs.
Infinity Machine and Design sells specialized springs for the 640a.
Infinity Machine and Design Sub Tank Kits
Give Rob a call.
I met an East German guy traveling on a 640a with his girlfriend two-up, they were using the stock seat and two 40 L Touratech bags, a Touratech tank bag(with tank panniers) and a back rack bag.
They did an east-west crossing of Mongolia and then rode to Vladivostok.
I think their secret was to ride less miles in a day than a single rider.
Last I heard they were shipping to Chili and heading south.
I wouldn't worry too much about parts, you can carry critical spares and tools.
None of the travel bikes are well covered for parts in SA in my experience.
b.
Last edited by Bill Shockley; 10 Oct 2007 at 09:36.
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