Universal Bike Trunk Mounted Car Racks Steel Bicycle Accessories

Top-mounted bicycle frame: also known as roof-mounted bicycle frame, it has the advantage of being able to carry bicycles while driving fast, professional, safe and stable, and is popular with bicycle clubs and professional athletes. The disadvantage is that after the bicycle is fixed on the roof of the car, the height increases significantly, and the trafficability will be affected to a certain extent; The most stable and safe overhead bicycle frame in the world adopts the design of double arms.

Because the bicycle is driven by the driving force and riding skills of the human body, the frame becomes an important structure to bear the impact load generated by the bicycle during driving and whether it can carry the human body comfortably and safely. The manufacturing accuracy of the frame components will directly affect the safety, stability, and lightness of riding. Generally speaking, the spokes are of equal diameter. In order to reduce the gravity, they are also made into variable-diameter spokes with large ends and small middle, and they are also made into flat streamline spokes to reduce the air resistance.