After lusting for a carbon crankset for a while I finally broke down and
bought the FSA Compact Carbon. I got mine from Dave Lettieri at
FasTrack Bicycles.
Installation
Very straightforward. It is replacing a Campy Record 39/53. FSA
doesn't offer a Campy tapered version so I also had to get an ISIS
bottom bracket to go with it. Dave recommended the Platinum (Cro-Moly)
version because he thinks it is stiffer and more durable. It seems like
a decent enough bottom bracket but wish I could have left the Record one
on. FSA included installation instructions with the kit but no torque
spec's. I was able to download them from the web site though. I also
had to lower the front derailleur a bit due to the smaller chain ring
plus readjust it a bit.
Riding
I was getting some creaking at first. I was very careful during
installation to do things according to directions. I used anti seize on
the cup threads and Phil grease on the ISIS spindles. After a couple of
rides however this went away. If these really are stiffer than my
record crankset I can't tell. I have ridden this with an 11-23 and
12-25. I used the 12-25 to go up a very difficult climb outside of
Davis, CA where I live called Mix Canyon Road. The last mile exceeds
20% grade. The 34-25 helped a lot getting up this thing. I had planned
to use the 11-23 most of the time with the exception of really steep
climbs but may just leave the 12-25 on unless I find myself missing the
11. While the lower gears of the 34 are noticeable, I had a hard time
noticing a difference between the 50 vs.53 tooth big ring. It took me a
little while to get used to the bigger jump between chainrings when
anticipating shifts but am getting used to it. The front derailleur is
working noticeably harder to go from the 34 to the 50 but handles it
reasonably well. If you are upgrading to this from a triple you may
want to just leave your triple front derailleur on.
Summary
So far my feelings are a little mixed. It looks great and greater gear
range is nice, but the shifting isn't quite as good as the 39/53, and
front shifts for me feel more awkward due to the greater change in
chainrings. If you are already running Campy 10 speed like me you can
get about the same range I'm getting with the 12-25 by using the 13-29
cassette with a 39/53--and for a lot less money. Of course you could go
really low with this thing and use a 13-29 cassette. It would give you
about the same low gear as a 30-25 without having to use an ego-crushing
triple crankset, but if you need gears that low my recommendation is get
the triple.
Mark Clark