Many drivers choose to forgo the hubcap/steel wheel combination that is often found on vehicles. An upgrade to aftermarket wheels adds an element of style to the vehicle, but what they fail to realize—aftermarket wheels have a number of performance benefits, too. Especially if they're alloy wheels:
1. Reduced unsprung weight compared to steel wheels. Wheels are not supported by the suspension system, which makes them susceptible to road shock and cornering forces. Alloy is lighter than steel, which reduces the impact while increasing handling capabilities.
2. Improved acceleration and braking. Once again, alloy aftermarket wheels are lighter and therefore don't require as much energy to move (i.e. start or stop rotating).
3. Added rigidity. Because alloy is significantly stronger than steel, it will reduce wheel/tire deflection during cornering.
4. Increased brake cooling. Some alloy wheels are designed in a way that allows more air to flow in and around the brake components. In addition, alloy conducts heat which means that some of the heat can transfer from the brake components.
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