Originally Posted by
Daspydyr
The FSA is a compact double (50/34). My bike is a DuraAce 53/39. I have tried but can't build enough strength to climb a class 2 grade. I am hoping that the compact double will give me the gearing to pull the grade. Thanks in advance for the comments.
If you already have a DuraAce crankset, I am assuming your bottom bracket is a Hollowtech II style, which means you cannot install a bb30 crankset because it has a 30mm spindle going through the bearings where yours from what I can tell should be 24mm. Hollowtech II has bearing cups that thread into the frame where bb30's bearings are pressed directly into the frame. Your frame will determine what new cranksets you can get if you are considering changing your crankset. Depending on the year of the shimano components, many of their cranksets between the compact and standard variants have the same radial span between the spiders and the chainring bolts so you could just put compact rings replacing the larger ones.