An indoor cycling bike (aka spin bike) is a stationary bike mimicking road or class rides. Unlike upright fitness bikes, spin bikes have a heavier front flywheel for momentum feel, drop-down handlebars for race-like posture, and friction resistance for real-road burn.
Types: Basic friction/belt (twist knob), magnetic (smoother, electronic), connected (apps like Zwift). Beginners stick to belt-drive friction—simple, no batteries, durable.
Best for newbies: Belt-drive models. They're intuitive (like twisting a dimmer switch), quiet, and low-maintenance. Expect 20-45 min rides at first; aim for 3x/week. 'Beginner-friendly' means assembly under 30 min, no wobble at speed, and comfy for upright/leaning postures.
Marketing traps: 'Heavy flywheel' sounds good but beginners need stability over inertia. Ignore 'Bluetooth' if not using apps yet. Test fit via height charts; most fit 80% of adults.
Real expectations: Fun sweat sessions at home rivaling gym classes. Pair with free YouTube for guidance—no steep curve if bike is forgiving.