The Performer JC20 is designed for everything from touring to commuting and shopping in the city. The upright seat and 20" wheels increase your visibility while ensuring your stability. The JC20 frame is made of light weight aluminum with a large diameter to enhance the strength and durability.Specs:Frame: Aluminum Seat: Mesh Shifter: Microshift bar end shifter 10S Lever: Tektro CL520 Front Derailleur: Shimano Tiagra Rear Derailleur: Shimano Tiagra long cage 10S Crankset: Truvativ Elita 52/39/30 170L Cassette: Shimano Tiagra 12-30t Wheelset: Jalco X320 32H Tires: Kenda K-193 20x1.25 Brakes: Avid BB5 disc brakes Pedal: Clipless Bottom bracket height: 16.7" Seat height: 9" Seat angle: 36-39° Weight: 40.1 lbs Rider weight limit: 265 lbs X-Seam range: 33"-48"Specifications subject to change based on parts availability. Some assembly required.