Koolo is a light and durable bicycle for all children who want more freedom and fun. An aluminum frame, high-quality components and NO use of plastic compromises make Koolo a reliable and durable bicycle. The bike has 7 gears and climbs hills effortlessly. Assembly is simple and simply involves securing the front wheel, pedals and handlebars. Driving pleasure is increased by the versatile tires (both at speed and off-road). A soft saddle, non-slip pedals and reliable brakes ensure the safety of your child. Technical features: [1] Length / 128.2 cm [2] Handlebar height / 68.5 - 74 cm (adjustable) [3] Saddle height / 53 - 63 cm (adjustable) [4] Handlebar width / 56 cm [5] Wheelbase / 79 cm [6] Bottom bracket height / 23 cm [7] Distance saddle to low pedal / 43 - 54 cm [A] Age (child) from 3-5 years or 115 cm [B] Max. carrying weight of 70 kg [C] Weighs 7.2 kg distinctive from other bicycles: The Yedoo 20" Koolo.... Not only has an aluminum frame, but also other important parts such as handlebars, stem, hubs and brake levers are made of aluminum. This saves weight and increases durability. Unlike many children's bicycles with only one or two gears, it has a Shimano 7-speed derailleur with a twist shifter. This makes it easy for a child to shifting and climbing hills, for example. Is 'tuned' in terms of frame geometry: long wheelbase for stability and a lowered top tube that makes mounting and dismounting easier. Offers a sitting position that is quite upright, which gives children a good view of the road and more control. Is equipped with Kenda tires (20 × 1.5) that are suitable for different surfaces - not only asphalt, but also light unpaved paths materials (such as aluminum parts), the bike is robust and can handle “many adventures”. Thanks to wide adjustment options (saddle, handlebars), the bike remains suitable as the child grows, which extends the lifespan of the bike.