Only really had to deal with square taper up til now so excuse my ignorance!
Looks like the previous owner of the GF’s Trance has fitted a replacement BB with a too-short axle (68x118mm BB-ES25) resulting in the chainline being off and unable to shift into the inner chainring. It’s a Shimano FC-M442/443 triple chainset, so according to them I need either a 68x121mm BB with a 2.5mm spacer on the driveside, or a 68x126mm with no spacers to get back to the correct 50mm chainline.
So, do Octalink BBs come with spacers? And I’ve guessed that the BBs with an -E suffix are for E-type FDs so I don’t want one of those, but what about -K and -AK suffixes – what are they for?