Vilano FORZA 4.0 Aluminum Integrated Shifters Road Bike Shimano STI Integrated Brake Lever Shifters A Strong Lightweight 6061 Aluminum Frame 24 Speeds to Handle any Situation Wheelset: Double Walled w/ CNC Machined Sides Free Pedals Included Speeds: 24. Frame: 6061 Double Butted Aluminum. Fork: 700c Steel Racing 1 1/8&#034; Threadless. Shifters: Shimano Claris STI (integrated). Front Derailleur: Shimano Claris 3 Speed. Rear Derailleur: Shimano Claris 8 Speed. Tires: Kenda 700c x 23c.