Literally, the die... I just assembled it without greasing and tried to change the tube today, but it wouldn't come off, so I pulled it with force and it broke...ㅜㅜ It seems like it was stuck. When I took it out, the retainer ring was loose, but is there a case where the axle doesn't come off even if the retainer ring is loose? It's a Madone 8th generation. The front one survived, are there any buyers?? ㅠㅠ