This system comes equipped with a battery. The brakes of the F2 are Shimano Ultegra Dual Pivot brakes with Cartridge Brake Shoes. These brakes are professional racing quality. The Rubino Pro Folding tires of this bike are a hallmark of the series. The ergonomic grip of the 6061 Butted Aluminum handlebar helps to make your ride comfortable. The grips of the F2 are Felt's Gel Ribbon Cork Tape grips. This bike is a step down from the flagship F1 model in that it lacks the F1's Vittoria Diamante Pro-Light Kevlar Bead Folding tires, Shimano Dura-Ace wheels, UHC-Nano carbon fiber frame and fork technology (which keeps the bike's weight down while making it more durable), and much lighter weight (13.98 pounds as opposed to 16.88 pounds). There are size options available for the Felt F2 road bike.