tough call it's either a Compact 50/36 or a Standard 53/39. With a standard you can still run a 12-27 or a 12-25 cassette and kill most stuff. Really depends how strong you are and how steep the hills are. I would take a look at similar riders around you what do they run? compacts? personally I ride a stack of hills 800- 1100ft gain and I run a 53/19 hooked up to a 12-25 but also i'm a big girrly blouse and would never top out a 53-11. just an opinion.