retro-direct (Q2146286)
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bicycle gearing mechanism which provides a second gear ratio when pedaled backwards
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | retro-direct |
bicycle gearing mechanism which provides a second gear ratio when pedaled backwards |
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Wikipedia(2 entries)
- dewiki Retrodirect
- enwiki Retro-direct
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Multilingual sites(1 entry)
- commonswiki Category:Retro-Direct