Originally Posted by
busygizmo
This bike comes with a 2x 48/31 with 11-34, hopefully that’s adequate but it looks like the derailleur will handle a 40 tooth cog if needed. Obviously the gearing is a bit of a compromise for the road with bigger jumps and lower top end.
That’s a good starting point for gearing. It might be all you need, but good that the derailleur has more capacity.