Torqued up to 40nm and checked regularly, you will probably be ok with a backwards BB though obviously not what you would have wanted.
Assuming you're using Shimano as you said you needed di2 routing so it should be fine either way round.
I don't know if the first batch were BSC (that everyone refers to as BSA) or T47 but it is the same situation either way.
Torqued up to 40nm and checked regularly, you will probably be ok with a backwards BB though obviously not what you would have wanted.
Assuming you're using Shimano as you said you needed di2 routing so it should be fine either way round.
I don't know if the first batch were BSC (that everyone refers to as BSA) or T47 but it is the same situation either way.