Hi there, Im Miguel from the Canary Islands in Spain. This is mi fixed gear bike. Its a Schwinn Madison Sprint from 2010. Its built with nš853 Reynolds steel tubing. The wheels are 2 Rigida DP18 rims with Miche Pista hubs. It has got Shimano Ultegra track cranks, Cinelli Vai seatpost and Cinelli Pista stem and a Deda pista handlebar. The gear ratio is 50-17.