Bicycle Chain Adjuster CNC Aluminum Alloy Tensioner Fastener Tightener Adjustment Tool for Mountain Road Bike Accessories black_Special size

Description

Scopes of Application:Chain tensioner single speed converter, ideal for mountain biking, bicycle, BMX etc. Practical tool:Floating pulley and spring adjustment for perfect chain tension. Light weight and small:It is very light and small, easy to install. and study:Made of high-end aluminum alloy material, wear resistant in use.