Riderace Chain Tensioner With Guide Pulley

Features:
1.Premium Material: Made of aluminum alloy material, and its surface features special to withstand corrosion.
2.CNC Workmanship: The surface is smooth and beautiful, the edges are smooth, delicate and smooth, light in weight but high in strength, compact and light, strong and durable.
3.Perfect Quality: Fine workmanship, stable stress, smooth lines, rust and corrosion resistance.
4.Exclusive Design: Spring-loaded design makes this bike chain tensioner suitable for various gear sizes.
5.Practical Accessory: Convert any multi-speed bicycle to single speed, adjustable to obtain perfect chain tension, can be used to adjust the chain line.