[You may also want to start using the bigger ring, 52T, on your Fastback. It makes a big difference in speed and amount of spinning. I normally use 52/19 or 52/17 when on the flats and small climbs. The only time I drop to the 42 is when I'm climbing overpasses and pedestrian overhead walkways over the the highways.[/QUOTE]

Wow 52x17. You are a lot stronger than I am right now. I'm hoping to get up there though. I've really only been riding a 2-4 times a weeks for about a month-and-a-half now.