How will wheel adapters affect handling? What effects will wheel spacers have on suspension geometry? Wheel spacers can help with fitting big brake kits, altering wheel offset if aftermarket wheels are used, and can widen a car’s track, thus reducing load transfer and ideally improving handling. That said, wheel spacers affect suspension geometry, and will change the scrub radius, affecting braking stability, and also reduce the effective spring rate at the wheels. Wheel spacers can also cause wheel bearing failure.