Sunny Health & Fitness SF-B1002C Chain Drive Indoor Cycling Bike, Grey CYCLE BIKE: The sturdy frame, 49 Ib flywheel and 275 lb user weight gives this bike a rock solid build that will keep it moving ride after ride. Easily moveable with the front-mounted transport wheels RESISTANCE: The cycle bike trainer resistance system gives you the experience of a realistic, real-road feeling while the built in push down emergency brake will bring the bike to an immediate stop. Belt Drive SILENT RIDE: Experience a smooth and realistic ride with chain drive system which allows you to workout without interrupting your workout or anyone around you. CUSTOMIZABILITY: With a height inseam of 29 - 40 in, adjust the seat horizontal/vertical to fit you while pedals are built with toe cages to keep your feet in place. Handlebars can be moved up/down.