Originally Posted by
javal
I think even more performance orientated hybrids can carry racks and bags, if you want to speed things up. But if you mean extremely light luggage that fit in a backpack/XL seatpack/fannypack etc, maybe you should consider a CX? Or a fully speced hybrid.
Not necessarily. My Marin Mill Valley can not easily accept a standard rack.
I carry a camera in a chest harness for quick access. Maybe something like that for your field glasses. Assuming quick access is desired. Hanging from your neck, they will swing around too much and hit your knees when you pedal.
Pretty much any bike that has rack mounting attachment points should serve your needs, so find one that you enjoy riding.
I wouldn't use cyclocross tires unless you plan to ride unpaved surfaces, and even then, not necessary. I rode 98 miles of unpaved path/road this weekend on smooth 700x28 tires @90psi with no problems.