Brand new * Durable Hi-Ten steel frame. * Drivetrain features a 140 mm one-piece crank with a 25T chainring and American loose ball bottom bracket. * 18” x 2.3” tires mounted on aluminum single wall 28H rims with 3/8” in axle front hub and 9T cog ball bearing cassette rear hub. * Hi-Ten steel handlebar and fork, 40 mm stem, standard 1-1/8” headset, and aluminum U-brake. * 16.9” top tube length. Suggested rider height is 3’8” – 4’8”. This BMX bike from Mongoose has a suggested rider height is 3’8” to 4’8”, making it perfect for kids and teens getting into the sport. Purchase the Legion L18 to get the best in kids BMX bikes. SPECIFICATIONS FRAME Hi-Ten steel, BMX freestyle geometry FORK Hi-Ten steel CRANK 1-piece, forged steel, 25T steel chainring CHAIN KMC S1 BOTTOM BRACKET American loose ball REAR COG Single-speed, 9T cassette driver RIMS Aluminum single wall, 24 mm ID, 28H FRONT HUB Steel, ball bearing, 3/8 in axle, 28H REAR HUB Steel, ball bearing, 3/8 in axle, 28H SPOKES 14G, steel, black TIRES 18 in x 2.3 in, wire bead PEDALS Mongoose, nylon BRAKES U-brake, aluminum HANDLEBAR Mongoose, Hi-Ten steel, 26 in width, 7 in rise STEM Mongoose, threadless front load, 48 mm HEADSET Threadless, 1-1/8" external, retainer bearing SEAT POST Steel, 250 mm, 25.4 mm SADDLE Mongoose, steel rails GRIPS Mongoose Zig, 130 mm