Aluminum Alloy Bicycles Chain Tensioner Bike Chain Adjuster Stabilizer for Single Speed Bicycles Chain Fastener

Features: Made with high strength aluminum alloy, this bicycle chain fastener ensures durability and corrosion resistance. Not easy to fade, more beautiful. Effectively prevent the chain from falling off the frame and damaging the surface of the frame. Specifically designed for folding bikes, this bike chain tensioner helps adjust the chain tightness to prevent derailment effectively. Exclusively designed for rear fork bicycles with a 10mm/0.39inch rear opening structure, ensuring a perfect fit and maximum stability. Easy to install. It is a perfect replacement for your old or broken one.

Specifications: Material: Metal Color: Black/Red/Blue/Gold/Silver Size: As Shown in the Picture

Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.

Package includes: 1pc Bicycles Chain Tensioner