yeah -- i'm riding 52x15, and some hills just kill me. i have to stand out of the saddle and mash away. it kinda the fun out of going out on those group rides... and the prospect park races kill me on the uphills. i don't even want to think about riding the central park race until i get a new cog. i'm thinking 42x14.

i just want flat-flat-land to ride on.

also agree with the sentiment noumena9's got about the roadies spinning 5mph up hills... is that just to build CV?