TutorialBike

Stuck Shimano HG freehub: unstick without the dedicated tool

Max

|4 minMay 13, 2026

Symptom

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

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

Ask the AI mechanic — share your hub model, the AI tells you if the freehub is serviceable and which tool to use.

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