Best GXP/BSA External PF30 Adapter
I used this on a new bike I got with a PF30 type BB so I could keep using my GXP/BSA Cranks until I could afford some BB30 cranks. There are a few out there but this one is legit, composite material, works perfectly. In my photo you can see how it basically just sits/looks like a bb spacer. If you need to use spacers with your cranks just use them the same way you would on your regular BSA English threaded bbs shell.