Haro Prewheelz 12" Kids Balance Bike Description: The Haro Prewheelz 12" Balance Bike features a lightweight, newly designed 6000-series alloy frame with a molded footrest platformas well as an all new one-piece bar/stem combination, further simplifying the assembly process. What traits does it share with its predecessor? How about the scuff-resistant tubeless tires, adjustable bar height, fully sealed hubs, high-impact mag wheels, and of course, our industry-leading limited lifetime warranty. PreWheelz by Haro; your child's gateway to fun and freedom. Features: Lightweight aluminum handlebar with safety grips High impact 12" mag wheels Scuff-resistant tubeless EVA foam tires Ball bearing headset Padded seat with rider-assist grab handles Alloy fork with rounded fork ends Redesigned 6000-series alloy frame with molded footrest platform Ultra-light alloy crank-less "Balance Bike" with no sharp edges Adjustable height seat post Approximately 4 lbs Specifications: Frame: Alloy 6061 12.5" easy stand over frame Fork: Hi-Ten 1" Threaded Headset: Loose Ball Stem: 1-piece stem / bar combo Bars: Alloy Grips: Safety Grips Hubs: Loose Ball Rims: High Impact Mag Wheels Tires: Scuff-Resistant Tubeless EVA Foam Seat: Padded Seat w/ Rider-Assist Grab Handle Seat Post: Steel (22.2mm) Seat Clamp: Alloy (25.4mm) Color: Black Weight: 4 lbs Geometry: Toptube Length: 12.5" (318mm) Chainstay Length: 8.7" (220mm) Headtube Angle: 70deg Seattube Angle: 72deg Stand Over: 12.5" (318mm) Seat Tube Length: 5.5" (140mm) Note: To ensure that every component on your bicycle is working properly, we recommend that all bikes be assembled by a qualified mechanic. Improper assembly of your bicycle may lead to premature wear or failure of individual components such as headsets, crank assembly and wheels. Failure to do so may void the manufacturer warranty.