What (if any) would be the weight advantage over running a standard set of XTR mechs and cables?
I suspect I've missed the point and this is all about precision, not weight saving...
Looks like a very interesting (if not wallet buggeringly expensive) project.
The bike now weighs 20lb which is not superlight but in answer to your question you don't save much weight but this system has to be made for xtr because it is so slick at gear changes. Take for instance the front mech ajusts itself when you move up or down the rear cassette and the gears never miss a beat. It will be a couple of years but this system will be used through out the shimano range. I can't praise it enough. But my god it is expensive.
Klein Adroit XTR M952 :: Klein Storm Custom :: Klein Adroit Di2 Bright Yellow :: Klein Attitude Gator M900 :: Klein Attitude Sunburst M900 :: Klein Quantum Pro Dura Ace :: Trek Pro Issue Carbon XTR M985 :: Specialized m5 S Works :: Merlin Di2 :: Muddy Fox Explorer 87 :: Muddy Fox Explorer 88 project :: Muddy Fox Courier 88 project