Chain Tensioner for Single Speed Bikes | Surly Bikes
Bicycle Bike Chain Tensioner Tug Adjust Fixie Fixed Gear Track BMX Single speed | eBay
Singlespeed Conversion: Simple No Tensioner! - YouTube
Amazon.com : CyclingDeal - Chain Width 1/8" Only - Fits Single Speed Chains - Bike Bicycle Aluminum Chain Tensioner for Fixie Road Bike and MTB : Sports & Outdoors
chain tensioner FORCE for singlespeed Al, black | Force