Cassettes Cassettes play a key role in your bike’s gear range. Whether you need a road cassette for smooth shifting on the pavement or a wider-range cassette for tackling off-road climbs, matching it to your drivetrain and terrain is essential. Consider the number of speeds (e.g., 10, 11, 12-speed) and tooth count to ensure the best performance. Lightweight cassettes with durable materials like steel or titanium are ideal for competitive riders. Planet Cyclery offers a wide range of cassettes to enhance your ride.