The Stolen Agent HB 12\" bike is designed for children of approximately 3 to 5 years. If you want your little rider to skip the coaster brake stage and jump right to the handbrake and cassette, this bike is ready. The 12mm semi-sealed cassette is the same hub that comes on the 16 & 18\" Stolen models, making it essentially \"kid-proof\". ###section### Product Specs FRAME MATERIAL: 1020 Hi Ten WHEEL SIZE: 12\" TOP TUBE LENGTH: 13.25\" CHAIN STAY LENGTH: 9.25\" HEADTUBE ANGLE: 74° SEAT TUBE ANGLE: 70° FORKS: 1020 HiTen Steel w/ Tapered Legs & One-piece Steerer, 32mm Offset BARS: TIG Welded, 1020 HiTen Steel, 5.70\" STEM: 6061 Alloy Front-load 30mm HEADSET: Standard 1 1/8” Threadless BRAKE MOUNTS: Caliper BRAKES: APSE Alloy Caliper Brake FRONT HUB: Unsealed 3/8” Axle FRONT RIM: Fiction Trojan Alloy (Single-wall) REAR HUB: 6061 Alloy Cassette w/ 12mm Chromoly Axle REAR RIM: Fiction Trojan Alloy (Single-wall) TYRES: 12x2.10” SPROCKET: 25T CRANKS: One-Piece Chromoly 92mm BB: Unsealed American PEDALS: Wellgo Mini PC SEAT: Padded w/ Rails for Adjustment GEARING: 25/9 WEIGHT: 16.75lbs ###section### Product Highlights Small 12\" wheels - Great for 2-5 year olds just starting out (Up to 3ft / 90cm tall) Specifically designed for the smaller rider, just starting out in BMX Strong Hi-Ten Steel Frame Adjustable Railed Seat Semi Sealed Rear Cassette