DaveShannon ...Certainly no big issue with the uphills in that gear. Might try it again on a return trip with 42:16. ...
If you''re okay with 42:15 try it with 42:14, see if you can still make the hills.
See it as a challenge not to change gear (it gets easier) but don't wreck your knees in the process. Change to a lower gear if you need to while still experimenting, you'll find something that suits.
What if the wind is stronger, will you manage a headwind uphill in the same gear?
If you''re okay with 42:15 try it with 42:14, see if you can still make the hills.
See it as a challenge not to change gear (it gets easier) but don't wreck your knees in the process. Change to a lower gear if you need to while still experimenting, you'll find something that suits.
What if the wind is stronger, will you manage a headwind uphill in the same gear?