McCoy 21 Speed 40A Frame Fit Rear DER
Designed to deliver smooth and reliable front gear shifting for 21-speed bicycles. Built for durability and consistent performance, this derailleur easily guides the chain between front chainrings, helping riders maintain efficient pedaling across different terrains.
Features:
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Compatible with 21-speed bicycle drivetrains
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Bottom pull cable design for common frame configurations
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Ensures smooth and precise front gear shifting
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Durable metal construction
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Suitable for MTB and recreational bicycles
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Ideal for repairs, replacements, or bicycle upgrades
