FB-5805 Indoor Good Quality Exercise Bike with Chain Transmission This smooth and quiet indoor cycling bike makes exercise convenient and effective. This bike has a smooth and quiet chain transmission. The heavy-duty 20kg flywheel, crank, and steel frame make this bike very sturdy and stable. It features a fully adjustable seat and handlebar and easily adjustable resistance with a top press down brake. It also comes with a metal bottle holder. Transportation wheels make it easy to move. Maximum user weight 130kgs.