SRAM Rival Wide Chainring Accurate Shifting Drivetrains need to be precise and dependable so you can ride with confidence. A tight and consistent 13-tooth gap between chainrings delivers accurate and dependable shifting and is the core of SRAM's X-Range gearing. SRAM's smaller chainrings paired with wide-range, 10T-start cassettes provide more efficiency and more time in the big ring. It's modern gearing for today's riders. Features Crisp and accurate front shifts on your 2x12 drivetrain X-Range gearing technology gives you more range and a smoother gear progression Durable finish so you can ride your years to come SPECIFICATIONSDrive Train Speed12-Speed Tooth Count43TBolt Center Diameter94 BCDMaterial Aluminum Intended Use Road Weight N/A | Sram | Rival Wide Chainrings 43T 94 Bcd Blk | Aluminum