SRAM X-SYNC Road 107BCD Chainrings feature wide-tooth, narrow-tooth technology for superior chain control, reducing the chance of chain drops. Their laser-etched finish enhances durability, ensuring long-lasting performance. With X-Range gearing technology, these chainrings offer a wider gear range and smoother transitions, helping you find the perfect gear effortlessly. Installation is simple and quick, requiring only a single tool, so you can easily upgrade or adjust your setup with confidence. FEATURES: SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control Laser-etched chainring finish is more durable X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear Can be installed with a single tool, making gearing changes a breeze SPECS: Chainring Size: 36T, 38T, 40T, 42T, 44T, 46T Bolt Circle Diameter (BCD): 107 BCD Speeds: 12, 13 Compat - Yaw: n/a Material (Chainring): Aluminum Color (Chainring): Black, Grey