ZTTO MTB Bicycle Single Speed Derailleur Bicycle Chain Tensioner For hanger dropout frame Adjustable Bike Pulley jockey wheel
$22.47
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ZTTO MTB Bicycle Single Speed Derailleur Bicycle Chain Tensioner Converts any multi-speed bike to a single speed Spring loaded design accommodates a wide range of cog sizesRange: 13-23T extremely lightweight. Adjusts for perfect chain tension Adjustable chain line Weight:About 63g
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