John E,

I used to have a 13-15-17-19-21 X 42/52. IIRC, even in my prime, I used to have trouble pushing a 52-15 for very long without drafting someone.

I wish my frame would accommodate a triple crank but I believe it is too tight for that - short chain stays, etc. I'm okay with the combinations I listed above. At least for now. As you know, California is pretty flat here by the ocean.

This is a REALLY nice bike. I need to it put back together and get back out there. I'm waiting on brake cable housings then I'm on the road again - can't go anywhere without brakes!