Hi all,
I'm stuck on a part number that I can't find. The original release bearing has an internal diameter of 34mm and fits perfectly but the new one that has been sent from Burton is 30mm internal diameter. Ive called them and they have told me that it is the one that every BC box uses..

has anyone come across this issue before?? TIA

ps the frame is the right size on the new bearing it's just the Internal part.