In fact, motorcycle aluminum rims actually contain other metals, such as iron, so they should be called aluminum alloy rims. Compared with ordinary motorcycle aluminum rims, iron rims have good toughness and poor hardness, while motorcycle aluminum rims are the opposite, with good hardness but poor toughness.
Therefore, the driver will find that after the potholes on the road are ravaged, the iron ring does not change much. It will start to shake at a speed close to 100km/hr, because it is formed by stamping, and the contour and mass counterweight are not accurate. Cause the moment of inertia to be unbalanced and jitter. In order to strengthen the heat dissipation of the brake system, many heat dissipation holes are left, and the strength of the iron ring is weakened, which makes the anti-deformation ability of the impact worse. But the low cost of stamping production is its main advantage, and iron rings are often used in basic models.
