Saipor 2pcs Bicycle Chain Tensioner Adjuster Aluminum Alloy Chain Fastener for BMX Fixie Bike Single Speed Bicycle, Black

• 【Material】 The bicycle chain tightener is made of high-strength aluminum alloy with upgraded CNC process, wear-resistant and anti-corrosion.
• 【Bright Color】CNC cutting with smooth surface and edges; the surface is anodized with bright colors and luster, making your bike more cool and fashion.
• 【Function】 Prevent the chain from falling off and avoids tangle and keeps the frame from scratching. Provide a simple, effective and adjustable way to tension a single speed system.
• 【Easy to install】No need other complicated tools. Installation is simple and quick, make chain adjustment easy
• 【Application】Fits 3/8" (10mm) axles, universally for single speed mountain bikes road bicycles cycling

Features 1. Made of aluminum alloy material, light weight does not put an extra burden on the bicycle. 2. Adopts CNC technology. Not easy to fade, more beautiful. 3. Used to adjust the bike chain tightness, effectively prevent the chain from falling off the frame and damaging the frame surface. 4. Allow you to get the proper chain tension and precisely align your rear wheel straight. 5. Great for a bike with a track fork, fixie bike, single speed bike. Specification: Name: Bike Chain Tensioner Material: Aluminium alloy Suitable for: 3/8" (10mm) axles Color: Black Quantity: 2pcs Packing list: 2 x Bicycle Chain Tensioner