Originally Posted by
gus6464
You obviously have not ridden a bike with Di2. No mechanical system comes close when shifting under load. With SRAM you really can't shift the front while going all out whereas with Di2 you can do whatever you want.
Corrrectamundo. I want to see what happens with further development.
I got a Mac in 84. I thought it was better than a PC, albeit at twice the price ($3000, in today's dollars, circa $5000.) 128 kb RAM, 544 kb diskette, no hard drive. In 5 years, it was obsolete. If anybody wants to buy Di2, go for it. It's a lot like a first-gen Mac, to me. I think there is a good chance it will be obsolete by 2014 (or maybe even 2012-13), because a) Shimano can, and I bet will vastly improve upon it, and b) other companies will look at electronic, and say, How can this nice idea be majorly improved? And areas for improvement are obvious.
I could be wrong. I'm not worrying about it, because mechanical shifting has a certain primitive-visceral loveliness, like driving a manual mechanical car transmission, and I like it. Frankly, I still like sometimes riding an old bike with friction shifters, where you have to dial in the chain/gear meshing using ear-brain-hand coordination. I like old manual pre-syncrhromesh trannies where I have to double-clutch and gas-pedal modulate to downshift into first gear without having to come to a stop.