Can you get a threaded bb30? I've a threaded shell, but i have got bb30 cranks, can you get threaded bb30 bottom brackets that the it can with fit the bb30 cranks?
There are some solutions in forms of bottom brackets designed to run 30 mm cranks in a threaded BSA bottom bracket shell. The deciding factor is the spindle length.
Searching the net for &quot;bb30 crankset in bsa frame&quot; gives e.g. this:

Threaded to 30mm Angular Contact BB - Black
Our solution for running a 30mm spindle crankset in a BSA threaded frame.
Notes:
For use with 30mm diameter cranks with a spindle length of at least 104mm. Will not work with standard BB30 cranksets.