What the thread found

• Looseness in a top stage can result from screws that are too long, causing them to bottom out and preventing adequate clamping force.
• The top stage may not be seated flush against the post even if it appears tight, creating lateral movement.
• An internal aluminium plug bonded into the post end can become loose over time, reducing structural support for the top stage.
• A recessed forward-facing screw on the top stage controls play in the x-y assembly and can be tightened to eliminate movement.
• Before addressing internal components, verify that all fasteners are properly seated and apply adequate leverage during tightening.

Depends on

• The advice references specific equipment models (MK-V carbon fiber post, EFP) that may not apply universally.
• The internal plug looseness diagnosis was not confirmed in the original thread.
• No definitive root cause was identified for the specific case presented.
• The thread contains no information about whether these solutions successfully resolved the reported issue.

Parts

Top Stage

Same gear or parts

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