What determines turning radius?

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Multiple Choice

What determines turning radius?

Turning radius comes from steering geometry—the amount the front wheels can pivot, which is set by the steering arms and the linkage. The steering arms on the wheel hubs determine how far the wheels can turn; that pivot angle fixes the curvature of the wheel paths. When you turn, the wheels trace circular arcs about a common center, so a larger steering angle produces a tighter turn (smaller turning radius). Wheelbase also matters: a longer wheelbase tends to make the turning radius larger because the vehicle’s rotation center sits farther from the rear axle. Tire pressure and vehicle weight can affect grip and how the turn feels, but they don’t set the fundamental geometric limit on turning radius.

Turning radius comes from steering geometry—the amount the front wheels can pivot, which is set by the steering arms and the linkage. The steering arms on the wheel hubs determine how far the wheels can turn; that pivot angle fixes the curvature of the wheel paths. When you turn, the wheels trace circular arcs about a common center, so a larger steering angle produces a tighter turn (smaller turning radius). Wheelbase also matters: a longer wheelbase tends to make the turning radius larger because the vehicle’s rotation center sits farther from the rear axle. Tire pressure and vehicle weight can affect grip and how the turn feels, but they don’t set the fundamental geometric limit on turning radius.

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