Besides making you sweat with its HIIT and boxing classes, Active Fitness also helps you smash your fitness goals with spin classes. Make your way to an industrial-looking shophouse in the heart of Joo Chiat for its indoor spin studio, Cycle Beats. With 30 stationary bikes, it's currently the biggest in Singapore. What goes inside involves a calorie-busting, rhythmic cycling workout complete with bright stage lights and pumping club music – think of it as a party on a bike that helps you burn up to 800 calories. Prices start from $45 for a drop-in single session, but if you're a student, you get to enjoy it from $15 per class.