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MUQZI Bike Single Speed Chain Tensioner Aluminum Alloy Adjustable Chain Guide for MTB Road Bicycle Cycling Black
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Amazon.com : Quintessentialz Chain Guide Mountain Bike Tensioner Double Stage Design for Chain Drops 1X 2X 3X Drives : Sports & Outdoors
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Amazon.com : Revere BMX High Performance Pair of 2 Chain Tensioner for Road and MTB Bikes | Lightweight Aluminum Alloy (Oil Slick) : Sports & Outdoors
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Amazon.com : JFOYH Single Speed Chain Tensioner with Multi-Segment Tension Adjustment and Double Spring Chain Guide, Ultra-Smooth Mountain Bike Chain Tensioner - Noiseless Performance, Easy Installation : Sports & Outdoors
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CyclingDeal Bike Single Speed Aluminum Chain Tensioner and Kit Packages for Road Bike and MTB Tensioner ONLY
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Amazon.com: Bike Chain Tensioner Single Speed Chain Adjuster Converter for MTB, Road Bike : Sports & Outdoors
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Good-Life Bike Single-disc Chain Guide Protector Mountain Bicycle Aluminum Alloy Chain Tensioner MTB Accessories - Walmart.com
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Bike Single Speed Chain Tensioner and Kit for Road Bike MTB Bicycle Cycling - Performance Aluminum Alloy - Easy Installation
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Amazon.com : Revere BMX High Performance Pair of 2 Chain Tensioner for Road and MTB Bikes | Lightweight Aluminum Alloy (Black) : Sports & Outdoors
![Is this little switch a chain tensioner? Not a novice, but when/why would I need that? I can't find any good information : r/bikewrench Is this little switch a chain tensioner? Not a novice, but when/why would I need that? I can't find any good information : r/bikewrench](https://preview.redd.it/is-this-little-switch-a-chain-tensioner-not-a-novice-but-v0-r96i1c41fdca1.jpg?width=640&crop=smart&auto=webp&s=26f3b96028ff89b11f55b3366b9a5e09b9580ba8)