Sorry I'm getting a bit lost with technical terminology
I am struggling with terminology - 12-30 ? In simple terms is the Trek as suitable as the other bikes for cycling in the Dales and will it makie hill climbing any easier ?
Number of teeth - 12 on the smallest cog on the rear and 30 on the largest.
Small cog = fast but hard, big cog = slow but easier.
The reverse is true on the front, where the smallest cog - usually referred to as a chainring - gives the easiest gear.
Simple answer is the Trek with a 12-30 rear cassette will be as good a climber as most road bikes, and better than some.