Originally Posted by
chain_whipped
Firstly, yes to ISO 1.8° taper. You'll have to determine cup / threads per the width frame shell. Length could be fudged depending on adjustable BB design, or sealed bearing type, whether or not drive side is to bottom out at the shell face.
Kind of a general rule in the aftermarket replacements, Campy double is symmetric and triple is asymmetric.
Suggest to review the product info directly at the bottom bracket makers site. They'll guide you and some will take a return if an incorrect fitment or need. Phil or Omni Racer is a good start.
just referenced Phil, they rec their ISO taper, BUT, if ordering new, be sure to tell them to bias to asymmetrical, their suggested spindle is 115 mm long.
By the way, this is different than vintage Phil that started before the CPSC changes.
‘the advantage with Phil is the chainline can be fine tuned.
not mentioned yet it appears is the date code of the cranks and the era of the front derailleur. Derailleur with the winged logo and the lip? You need the post CPSC arm without a lot of finessing. I have placed a later derailleur with pre-CPSC arms and it requires much fiddling. Not sure of the date code of your drive side arm, post an image of the back side of it off the bike.
in the original record era, Campagnolo road spindles were never symmetric.