Last Updated: April 28, 2026 A spin class is an indoor cycling workout, usually 45–60 minutes long, on a stationary bike led by an instructor with music. Most classes mix flat-road steady efforts (Zone 2–3), simulated hills (high resistance, low cadence), and sprint intervals (high cadence, moderate resistance). Expect to burn 400–700 calories per class … Continue reading What Is A Spin Class? Types and Benefits, Explained By An Instructor