Cross posting from Slowtwitch:
Looking for info on Hollowtech II crank chain lines. Been cruising the internet for a bit and the manuals pretty much address BB width for spacers to add or not add based on triple vs double cranks.
I'm specifically looking at it for what the chainlines have been like for 5600/6600 5x130bcd through current 4x100bcd AND also maybe some Sora 5x100 double cranks.
Basically, it is easier to find 1x aero chainrings in either 4x100, 5x100, or 5x130. With a LOT of cheaper options for 5x100 and 5x130 that includes Garbaruk.
You can get new Sora double cranksets under $75 and get them in 165mm, and they're Hollowtech II. I could care less about the weight. Those are 5x100 and Garbaruk carries a 5x100 aero chainring.
I'd prefer 165mm in a 130bcd, and they WERE made. But, not finding any used anywhere.
If it ends up being 5x130, I can keep my 2x TT chainrings and toss it onto the 165mm 5x130 crank if I need to. So, 5x130 in a 165 is my #1 choice.
Any assistance looking this info up or finding items is appreciated.