Ultra lightweight: All ACADEMY bikes weigh less than 40% of a typical child's weight. At 5.5 kg for the 16-inch model, 7.2 kg for the 20-inch, 7.9 kg for the 24-inch, and 8.6 kg for the 26-inch, they are significantly lighter than the standard weights of children's and youth bikes on the market. Ergonomic: The ACADEMY frames feature low and narrow bottom brackets that promote a close, child-friendly leg position. Short crank arms and an upright seating position allow kids to easily place their feet on the ground at any time, while still ensuring an ergonomic knee position while riding. Child-friendly: The better the weight and ergonomics of the bike are tailored to children, the greater the motivation to ride. This results in increased physical activity and fun. Smart: ACADEMY bikes are meticulously designed. They come equipped with child-friendly components for everyday urban use, while still being modern and stylish. High quality: The lightweight, up to 3-fold conical aluminum frames and forks, along with specially manufactured aluminum attachments, guarantee extremely low weight classes for all ACADEMY models. The developed VEE TIRE Rail folding tire with a reflective strip offers excellent rolling characteristics with perfect grip.