Originally Posted by
FBinNY
Sounds like the ratchet pawls are either broken, or more likely withdrawn and not springing back to engage. the cause could be anything from dirt, thick dried grease, rust, or on some types a broken pawl spring.
Depending on the rear hub, you're looking at a field strip and inspection, then either a clean, lube & rebuild, or a new freehub body.
Agreed. The best result would be that the grease has gotten sticky and the pawls are jammed. Some light oil run through the cassette body will free that up. It's a job for a good mechanic.
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