Introduce
Product Name: Virtual Flywheel/Chain Tensioner
Material: aluminum alloy, engineering plastics, stainless steel
Net weight: barrel shaft version 23g, basic version 74g, quick release version 80g
Features: High-strength alloy main body, hard and compressive, H-shaped chain groove structure, avoid chain skipping when changing speed, small size design, easy to carry, magnetic absorption design, easy to store.