And everything I've researched comes back to the OEM bearing equivalent is the one currently installed/recently removed. I'm just curious why Z1 would supply a thinner/smaller bearing with their kit, but the only answer I got was that it was an "upgrade". I'm sure they've done their research to come to that conclusion, but my logic brain side still has doubts about the reasoning. I can't help but feel that the variation in size has to play a role in altering the contact point/throw. Why not stick with the OEM sized bearing and match the pivots/contacts to OEM specs? I'm probably overthinking it though...