Introducing the Senzo CNC 4.1mm Fixed Sprocket – where precision meets performance. Engineered with cutting-edge CNC machining technology, this sprocket sets the bar for smooth running and unmatched durability. Crafted with meticulous attention to detail, the CNC machining process ensures that every aspect of the Senzo 4.1mm Fixed Sprocket is finely tuned for optimal performance. The result? A sprocket that not only delivers seamless operation but also boasts an extended lifespan, making it a reliable choice for your cycling needs. What sets the Senzo 4.1mm Fixed Sprocket apart is its thicker diameter of 4.1mm, surpassing the industry-standard 3.9mm. This innovation is a game-changer, elevating the sprocket's performance to new heights.