Originally Posted by
deep_sky
I love my 26x30 low gear (for double digit grades, of which there is no shortage of here), and would never give it up so I can look pro. I'd prefer to keep my original knees.
That's cool; to each his/her own. But, with a 26x30 low gear, you're either riding non-road stuff, or modified road stuff. (Even folks who rock triples are running a 30t granny stock; obviously, the 74mm bcd allows smaller stuff, but you'll never get it that way from Shimano, Campy, or SRAM on a factory crankset.)
I'm not telling the OP that s/he doesn't need a gear lower than 34x28; I'm just saying that s/he oughta try the stock set-up before deciding. I think that's just simply practical advice. The super-low gear ratios are definitely en vogue these days, but they don't work for me at all. I'm definitely fat, lazy, and non-pro-looking, but spinning super low gears around here just doesn't work for me. So, why not try before preemptively replacing the cassette?