That's my worry. I did it on a very close ratio cassette and big front so even in my lowest gear I had to bomb every hill or exhaust myself grinding up.
It made a huge difference as I didn't really notice the climbs. There are only one or two where it's necessary to spin up in a tiny gear, I reckon.
It's only the concern about not getting a rest on the descents/not being able to hammer it on the flats (occasionally) that's making me lean towards gears...
That's my worry. I did it on a very close ratio cassette and big front so even in my lowest gear I had to bomb every hill or exhaust myself grinding up.
It made a huge difference as I didn't really notice the climbs. There are only one or two where it's necessary to spin up in a tiny gear, I reckon.
It's only the concern about not getting a rest on the descents/not being able to hammer it on the flats (occasionally) that's making me lean towards gears...