World is filled with options depending on your relative
rankings of various criteria.
You could run 1999~2007 Campagnolo Ergo Ten, perhaps with
the long cage rear changers of that era. Mix-n-match all
component levels (Record, Chorus, Datyona/Centaur. Every
part for the easily serviceable levers is available.
Larger than 30t low cassette sprockets only with
not-Campagnolo wheels, but a better more popular solution to
aging is a not-Campagnolo compact with a smaller front such
as 32x46.
--
Andrew Muzi
a...@yellowjersey.org
Open every day since 1 April, 1971