Elliptigo stand up bike. Like an elliptical exercise machine with wheels. Model is 3C and upgraded to 8-speed. Schwalbe marathon tires, with one brand-new tire included. Extra load roller wheels included. This Elliptigo has been custom outfitted with a front pannier rack (by Fairfield Bicycles) and fenders for commuting (panniers not incl.). Bike is in good condition and I've owned it for 8 years. See https://www.elliptigo.com/bike-family/#sec-elliptical-bikes for more details. Great for cross-training, fitness, low-impact alternative to running, or bike enthusiasts.