TOOPRE Bicycle Zipper Dead Fly Single Speed Folding Bike Tensioner Adjuster Presser Anti-Drop Chain

Brand: TOOPRE can provide brand authorization Name: Bicycle Zipper Weight: Approximately 20g Applicable: Only suitable for bicycles with rear brackets, with a rear opening structure diameter of 10mm Function: This is a split-type chain adjuster, mainly used for adjusting the chain tension on folding bicycles to prevent the chain from loosening and causing it to drop. Features: Made of aluminum alloy, strong and lightweight, CNC precision cutting, accurate dimensions, surface anodized treatment, beautiful color, beveled edges.