[Closed] FSA Orbit I-t Integrated Headset Bearing Sizes

Hi folks,

Got a Cube Stereo 2014 with an FSA Orbit I-t Integrated Headset 1,1/8" integrated 1,1/2". Headset is needing serviced and this time I want to do it myself as I am not convinced the LBS has been doing it properly as it has been rough every 4-5 months on a bike that is never jet washed.

Does anyone know where and what to order for the cartridge bearings? I have been on the FSA website but my headset name doesn't match up to the technical documents or spares models offered.

Help.

Thanks in anticipation.

Alan