Dont use a USA to euro converter. Also, Mid BB bearings will NOT fit the unsealed USA cups that are currently in your frame. You simply need a sealed USA BB for whatever size spindle your new cranks will have. As someone mentioned previously, we have the Odyssey USA/Mid BB in stock in 19mm. If you need a 22mm let me know and I will get one for you. Dont hesitate to email me with any questions.