It seems it is indeed the seatstays which are contributing the most flex to the situation. I guess it's kind of a tradeoff: sacrificing drivetrain stiffness for a more compliant and plush ride. I'll have to reconsider the type of riding I'll be doing on this bike.

http://upload.wikimedia.org/wikipedi...eldpackage.jpg..................:D

nah.


http://www.sealseal.com/fUpfiles/855421.jpg
and
http://cjcompositestechnology.com/im...100_0624-1.jpg

:deal:

Flex is bad in most metals because it leads to work hardening, and they snap - not ti though. Moots YBB frames use flexing titanium chainstays to build a short travel full sus with no pivots.

I love the look of that bike - looks like a great frame for long distances without the discomfort of aluminium or whatever. I guess you're losing a bit of energy bending the frame side to side (disappears as heat eventually) but really - that much? If it *is* that much then I'm sure that redesigning and altering the frame would be crazy-uneconomic - carbon frames are a great compromise and quite cheap now.