Every spin class is a conversation between two dials: how fast your legs spin (cadence) and how hard the wheel fights back (resistance). Understand what each one trains and you stop just surviving class — you start using it. Here’s spin’s core physics, decoded.

The Two Levers

Cadence is pedaling speed (RPM); resistance is the simulated hill. Every drill combines them differently. Power - and your results - come from their product.

What High Cadence Trains

Fast spinning at moderate resistance builds cardiovascular capacity and leg speed. It’s the breathless, heart-pounding side of spin. If your goal is engine-building, live here often.

What Heavy Resistance Trains

Slow, loaded climbs build muscular strength and endurance in your quads and glutes. It should feel like pedaling through honey with purpose. Strength on the bike transfers to power everywhere.

Common Mistakes

Bouncing in the saddle means resistance is too low for your cadence; grinding below 60 RPM strains knees. Match the instructor’s zones honestly - fake resistance cheats only you. Form first, ego never.

Ride With Intention

Decide each class: engine day (chase cadence) or strength day (honor the climbs) - or follow the instructor’s blend trusting the design. Knowing why you’re turning the knob transforms results. The dial is yours; use it like you mean it.

Spin mastery is two dials deep: spin fast to build your engine, load heavy to build your strength, and never bounce or grind. Turn the knob with intention and every class becomes exactly the workout you came for.