Deore XT with 105?
As this is my first time trying to build a bike, I am at a loss.
I've managed to acquire an XT rear derailleur (M772, super long cage), an XT cassette (M770) and a XT STI brake & shifter combo (M770).
Next up, when I have the money (time is not the problem), would be cranks. As the rear is 9 speed, would a 105 do? Is it possible to mix the parts in such way?
The bike will be for my better half and her 110 pound frame does not, I'm pretty sure, necessitate super heavy-duty MTB stuff to last. Oh yes, the bike is to be a 20 kilometers/day commuter.