I'm wondering why he have two or three chainrings up front when there are hub gears?
I have two Dahon folding bikes that use the SRAM Dual Drive hub on the rear and I absolutely love the thing. Quiet, remarkably easy to set up, no maintenance and you can shift them sitting still.
Why no dual drives or hub gears on current production bikes (that I'm aware of)?
Is it a weight thing? Do they not hold up to daily abuse or heavy mileage?
I don't get it.