TSI certified:BA002,BA004,BA302,BA303,BA318,BA319
Rim: the outer ring of the wheel, support the tyre, providing structural integrity and shape to the wheel
Spokes: the rods that radiate from the hub to the rim, providing strength and stability to the wheel
Hub: central component connecting to the axle, the point of rotation of the wheel
Tyre: The outermost layer of the wheel, contacting with the ground ,provideing traction and shock absorption