Did you ever start a maintenance job then wish you hadn't ?
Help me understand what I did wrong.
I was in the process of replacing a chainring on a Campag
Record Chainset - a new 10-s version - there's a digram of
it in the catalogue
campagnolo.comspares04 A.pdfOpen ↗
As with all my training bikes I was replacing a 53 for a 51
chainring. It's a job I've carried out before on Shimano
chainsets without any problems.
I sprayed some penetrating oil on the chainring bolts. I
loosened the four outward facing ones ok; they were VERY
tight. When I tried loosening the inward facing chainring
bolt (part FC-RE102), the non-standard one that screws the
chainring to the crankarm, it
it out, but this one screws into the crankarm. Anyway tring
to salvage a bad situation, I carefully drilled this bolt
but am left with a small piece in the crankarm. I replaced
this chainring bolt with a normal one, but have lost the
benefit of having the chainrings secured to the crankarm -
anything else I can do here ?
Given that chainrings on top-end chainsets are supposed to
be replaceable, and that I worked very carefully, what did I
do wrong ?
Thanks in advance.