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Stuck Shimano HG freehub: unstick without the dedicated tool

M
Max
4 minMay 13, 2026
Stuck Shimano HG freehub: unstick without the dedicated tool

Symptom

Cassette won't freewheel or won't stop ratcheting. Pawls stuck in resin/dried grease.

3 methods

  1. WD-40 bath after removing from hub, 30 min, then degreaser + light grease refill
  2. Hairdryer at 60-80°C if freehub won't release from hub, then WD-40
  3. Full disassembly with Shimano TL-FH16 tool (15-25€) — or replace freehub (30-80€)

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Source: Official workshop manuals

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