Dear Willem, I pulled my BB out from my Stromer ST1 and it is exactly the one you mention: RPM BB-7420; BC 1.37x24T, shell 73, spindle length is 138.5. It is not an FSA, but an RPM. This is the original one in a European Stromer ST1 from june 2014. I need to replace this BB after 10.000 km (2,5...