Bicycle around the world 4K دراجات

A bicycle (bicycle) is a kinetic vehicle that relies on human movement and works by pushing the pedals in front of the rear wheels by using the legs. It contains two wheels that are connected to the bicycle body. The bicycle is one of the transportation devices used since ancient times, and it is considered a means of transportation - that is, it leaves a single lane on the road on which it walks ahead. Such vehicles usually have little or no share of lateral stability in the case of stabilization, but is formed while in motion or while controlli الدراجة الهوائية (بايسكل) هي مركبة حراكية تعتمد على الحركة البشرية وتعمل من خلال دفع الدواسات المتمركزة أمام العجلات الخلفية عن طريق استعمال الساقين. تحتوي على عجلتين متصلتين بالهيكل الخارجي للدراجة الهوائية. تعدّ الدراجة الهوائية من إحدى أجهز