Originally Posted by CliffordK

Make sure you have BB30. There is also PF30 which is different.

There are adapters for BB30 to English bottom brackets.

https://www.excelsports.com/main.asp...ajor=1&minor=6

https://www.amazon.com/FSA-BB30-Engl.../dp/B002ATFTHI

However, I'd encourage you to also consider an eccentric BB30 to External 24mm adapter (many modern cranksets) which should help you with your chain tensioning.

Wheels Manufacturing Eccentric BB | Jenson USA

ORIGIN8 Eccentric Bottom Bracket | Jenson USA