This Redline Flight Expert XL Kids Bike is in PERFECT condition. Factory model comes standard with the following: Wheels and Tires Hubs: Redline Flight, sealed bearing; Front: 3/8-inch chromoly; Rear: 120 Instant Cassette Hub, 15mm through-axle Tires: Tioga PowerBlock; Front: 20 x 1.6; Rear: 20 x 1.4 Components Crankset: Redline Microline 2-piece forged aluminum, 170mm Pedals: Redline aluminum platform Bottom Bracket: Press-Fit BB86 Seatpost: Pivotal aluminum, micro-adjustable Saddle: Tioga D-Spyder S Pivotal Factory Description From the starting gate to the tape, Redline Flight Expert is build for speed. It features a tough yet lightweight Redline R7-aluminum frame for awesome handling and unmatched speed that leaves your competition gasping for air. The Box Pro Lite carbon fork carves up corners while the Alienation MIA rims wrapped with Tioga tires roll along with lightning velocity. The 2-piece, hollow-forged cranks turn 38/14 gearing on a stiff BB86 bottom bracket. This winning machine also comes equipped with track-worthy components like a Tioga Pivotal saddle and a stiff chromoly bar.