The grips of this bike are Felt's Gel Ribbon Cork Tape grips. The frame of the F4 is a HM High Modulus Modular carbon fiber frame with 3KP finish and replaceable hanger. The fork is also High Modulus carbon, which helps this bike to be durable. This fork comes with a compression device, allowing you to fine-tune performance. The brakes of the F4 are Shimano Super SLR Dual Pivot brakes with Cartridge Brake Shoes, which are equipped for precision stopping. This bike is a step up from the lower cost F5 Special Edition model in that it has Shimano aluminum spokes (instead of Swiss SL butted spokes), Shimano aluminum front and rear hub, premium Rubino Pro Folding tires, and a lower weight (only 17.45 pounds as opposed to 18.22 pounds), which helps it to be a faster bike. However, this bike lacks the higher cost F3 model's Fulcrum racing front and rear hub, Ultra High Modulus Modular frame and fork, and lower weight (16.66 pounds). There are size options available for the Felt F4 road bike.