Originally Posted by
jsdavis
I am in San Francisco. I'll give it a try come Monday. I have no idea how I'm going to ride up a 16% grade in 48T ring though.

I'll stick to my 28T ring for that portion. More than once I've taken the bus into work and had to walk up that hill and thought to myself "WTF, how do I ride up this everyday."
okay, I've biked through San Francisco I know how the hills can be. Yea, stick to your granny gear going up hill, but when you're going down...jump into that 48/12 or 13 or 14. The higher gears really give it a powerful kick. So much fun after all that hard work getting to the top of the hill.