Made with an aluminum frame and integrated head tube, the Redline MX20 is lightweight and easy to maneuver. The MX20 features a high-quality 3-piece crank set, integrated headset, pivotal race saddle, and 20-inch wheels. The Redline MX20 is top-of-class for value and quality, and best of all, it's race-ready out of the box. Specifications: Frame: 6061 Alloy with Integrated Headtube Fork: Redline Race Hi-Ten with Tapered Legs Headset: 1-1/8" Integrated Stem: Redline Hollow Point Aluminum 1-1/8" 55mm Threadless Frontload Bars: Redline Race 8" 10deg Back 4deg Up 28" Wide Grips: Redline Hex Expert Grips with Plugs Cranks: Redline Race Chromoly 3pc Cranks (175mm Arm Length) Bottom Bracket: Euro Pedals: Redline Race 9/16" Platform Pedal Chainring: 44T Alloy Chain: KMC Z410 Front Hub: Redline Aluminum Rear Hub: Redline Aluminum Flip Flop Cog: 16T Front Rim: Alloy Race 20 x 1.75" (36H) Rear Rim: Alloy Race 20 x 1.75" (36H) Front Tire: Vee Speedster (20 x 1.95") Rear Tire: Vee Speedster (20 x 1.75") Seat: Pivotal Race Seat Post: Pivotal 26.8mm Seat Clamp: Alloy 31.8mm Brake Lever: Tektro Brakes: Tektro BX310 Linear Color: Black Weight: TBA Geometry: Toptube Length: 20.25" Chainstay Length: 15.5" Headtube Angle: 74deg Seattube Angle: 70deg Bottom Bracket Height: 11.5" Recommended Sizing Guide: 5'3" to 5'8" tall