I have a bike I'm building up... it's a lovely original (1984) Cannondale frame that's i've stripped and refinished. New Campy NR hubset, Sugino BB, Alesa and Ambrosio wheels (two sets).

However, I have to gear it up, and would love some help setting the gearing for this bike... it's been a while since I've ridden so don't really have a starting reference.

The bike will be a daily commuter in San Francisco, from the Mission District to the Exploratorium, so I'll be crossing a major hill, minimum grade is 10%. I'm a strong cyclist, don't mind a bit of sweat, but my left knee can't take to much strain.

It has 170mm cranks (Sugino AT double, 110/74 BCD), and the wheelsets are two diff diameters, (27" and 700c) so I can use two different rear gear sets... but the front I'd like to keep the same. Anybody have any recommendations for front chain rings to go along with freewheels? The freewheels, cassettes would theoretically be gear differently for daily, vs. special riding.

I was thinking about a 38/46 front, with something like a 12-28 in the back.... does that sounds like a good place to start?