High-Quality Steel Construction – Made from durable, corrosion-resistant steel for long-lasting use and reliable performance under daily riding conditions. Precise Dimensions – Outer Diameter: 134mm (5.28"), Inner Diameter: 36mm (1.42"); 410 chain compatible; 32 teeth design ensures smooth pedaling and efficient power transfer. Universal Compatibility – Works with most 410-type chains on road bikes, folding bikes, fixies, cruisers, and commuter bicycles. Smooth & Quiet Operation – Precision-cut teeth minimize chain slip and noise, providing a comfortable and stable ride. Easy Installation – Direct replacement sprocket for single-speed and fixed-gear setups; perfect for upgrades or worn-out part replacement. inkfrog terapeak