Alternatively I could ball out on this, which is pricey, but probably not much more than buying new cranks. Though I'll only have an 8 speed cassette in the back, so it feels a bit obscene to spend more than I've spent on my derailer, shifter, cassette and cranks combined on a blingy chainring.
I will measure the BB shell to get some more solid data.
There are loads of “IXF” Chinese hollowtech II style cranks on eBay for ludicrously cheap that take standard MTB chainrings, and quite often come with BBs. I have one on my retro Cannondale and it works fine and doesn’t look out of place.
https://www.sigmasports.com/item/Wolf-Tooth-Components/94-BCD-5-Bolt-Chainring/IC54
Alternatively I could ball out on this, which is pricey, but probably not much more than buying new cranks. Though I'll only have an 8 speed cassette in the back, so it feels a bit obscene to spend more than I've spent on my derailer, shifter, cassette and cranks combined on a blingy chainring.
I will measure the BB shell to get some more solid data.