[40 lbs Flywheel]: 40 lbs chromed stable flywheel for stability with felt pads for adjustable stress resistance. The design of the circle on the flywheel makes the flywheel fly like a flash lightning quick. [Super Quiet Design]: The train bike gives you a clean and quiet trip with upkeep free belt drive system which lets you take pleasure in your exercise with out interrupting others. [Guarantee]: Purchase this merchandise with confidence. If there any problem with it, do not hesitate to contact us, and we are going to response and resolve it inside 24 hours. Your satisfaction is our high precedence. [Heart Rate Sensor Design]: Modern coronary heart price sensor design, add the guts price tester perform, monitoring pulse frequency at any time(earlier than/throughout/after biking), within the Digital Show PULSE mode show. [Material]: This health bike adopted top quality Plastic and Steel to ensure the sturdiness and stability to supply you a excessive worth product.