Crank alinement

zakfarg-<< have a campy record 10 spd group and a shimano style crank with dura ace chainrings and a
12-25 campy cassette.

my problem is, the chain rubs on the front derailleur , when in the
39/12,13,14 tooth clog. I Change the limit adjustment on the derailleur And the BB out 2 mm but this
did not stop the problem. >><BR><BR>

think the chain is tickling the big ring when in the small ring and smallish cogs. A result of lots
of cogs that have to go to the right and the chain angle. Shift to the big ring and up the cogset.
If what ratio you ends up on is still a problem, may need a 13-26 or 29.

Wouldn't change the BB spindle/chainline tho-

Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
(40)440-3535 vecchios.comvecchios.comOpen ↗ "Ruote convenzionali costruite eccezionalmente bene"

zakfarg' may have said:

have a campy record 10 spd group and a shimano style crank with dura ace chainrings and a 12-25
campy cassette.

my problem is, the chain rubs on the front derailleur , when in the
39/12,13,14 tooth clog. I Change the limit adjustment on the derailleur And the BB out 2 mm but
this did not stop the problem.

any suggestions

The derailleur clamps to the seat tube, right? Check the angle of the der on the tube. You may find
that rotating the der a bit counterclockwise on the tube will alleviate the problem and still
provide proper shifting. This sounds like one of those problems that just requires some fiddling
with positioning and adjustments.

You might want to look at the advice here:

sheldonbrown.comderailer adjustment.htmlOpen ↗

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