20" Weight only 7.9 kg New ergonomics: Seat post with an extra large adjustment range Cranks with a super narrow Q-factor, only 140 mm Handlebar with 12° bend for ergonomic hand position New stem without edges Growing "Adaptive Frame" 8-speed Shimano Altus gear system with twist grip Internally routed cables All-round tires 20 x 1.75 For children approximately 4.5–7.5 years / 105–125 cm