Sunny Health & Fitness Asuna 5100 Magnetic Belt Drive Commercial Indoor Cycling Bike Micro adjustable magnetic resistance with press down braking System Heavy duty Commercial grade steel frame and crank with dual action click and caged combination pedal Belt drive mechanism and a 37.5 lb Cast steel and aluminum flywheel for smooth and quiet workouts Features a height adjustable handlebar and fully adjustable fore/aft and up/down seat 2 easy-to-reach water bottle Holders, built-in transportation wheels and a max user weight of 300 lbs