wvcajun said:
I have a compact campy chorus crankset with 50/34 teeth. Ever since about 300 miles it has shifted like ****. Ie - it has an immense amount of trouble going from small to large rings in the front. I have adjusted the front derailleur numerous times. It will shift good about 20 miles after a lube then same old ****. I looked at the little shifting pins that protrude from the ring and they don't seem to be sticking out far enough compared to other rings from other manufacturers. Did mine wear prematurely or was it a flawed design? Should I replace with OEM or different rings?
Did you originally cobble the bike together, yourself?
By chance, are you using a
Shimano 10-speed chain, or equivalent, instead of a Campagnolo 10-speed chain, or equivalent?
Which front derailleur are you using?
Since MY observation is that Campagnolo shifters
[I'm presuming you are using Campagnolo shifters with the "compact" crankset] can work well with OLDER, unramped 8-speed chainrings (that's one of
my great discoveries as it lets me use up my stash of older chainrings), without seeing your setup, I would reckon that you are using too narrow a chain for the front derailleur's cage ...
So, there isn't any reason to replace your current chainrings with OTHER chainrings, IMO ... besides, you'd have to enlarge the hidden, 5th mouting hole AND the "pin" that is designed to catch the chain on an over-shift will be in the "wrong" place if you install a non-Campagnolo chainring (TOKEN may make compact chainrings for Campagnolo compact cranks) ...
Specifically, several years ago, I set up a bike with Campagnolo shifters + 50/34 crankset on which I had installed a set of unramped 8-speed chainrings + a 9-speed Shimano chain + a 9-speed ULTEGRA 6500 front derailleur (I generally use Shimano front derailleurs with my Campagnolo shifters, BTW). There were no problems shifting between the inner & outer ring.
Presuming you are using the wrong chain, instead of whatever chain you are using, if you don't want to use a Campagnolo 10-speed chain, you can use a SRAM 89R chain ... a 9-speed Shimano chain is a little wider, but YOU can probably use it, too.
If you continue to have problems, the easiest way to
exorcise the bike's drivetrain is by sending me the crankset so that I can dispose of it properly ...
kidding!
BTW. I actually use
thee-shift-clicks to move the chain from the inner to the outer chainring, and vice-versa ... as long as the front derailleur's stops are set properly whereby the chain doesn't drop off the inner of outer rings, I figure it's fine.
By chance,
IF you are trying to use Shimano shifters wth your compact Chorus crankset, then you may need a TRIPLE-capable left/front shifter which will allow you to use one of the extra indents to move the chain sufficiently -- I had briefly, intentionally mis-matched a 9-speed Shimano 105 shifter with an XT front derailleur & double crankset AND (again) needed three-shift-clicks to move the derailleur cage sufficiently to shift the chain from the inner to outer chainring.