Kids Hybrid Bike Bicycle BTWIN 20 Inch Single Speed Two V-Brakes Cycling White Posted on November 13, 2023 by admin Clean and grease the chain regularly. We’ve designed this hybrid bike for children aged 6 to 9 years (120 to 135cm) wanting to cycle in urban parks or landscaped paths. This hybrid bike is single speed, with brake levers adapted to children’s hands. Share