SRAM X-Sync Red E1 Direct Mount chainring

Our light, stiff, and durable direct mount chainrings let you pick the exact gearing you want and quickly swap sizes. Our X-SYNC technology keeps the chain where you need it to be, too. Features: - 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 - Improved aerodynamics for time trial and triathlon Specifications: - Chainring Size: 38t, 40t, 42t, 44t, 46t, 48t, 50t - Bolt Circle Diameter (bcd): Direct Mount (dm) - Speeds: 12 - Material (chainring): Aluminum