| 摘要 |
An apparatus includes a vehicle having at least one tire mounted on a support member. The tire has a centerline that substantially defines a first tipline of the vehicle. A device, which has a diameter that is smaller than the diameter of the tire, is attached to the support member. The device includes a contact surface having a centerline that substantially defines a second tipline of the vehicle. When the tire is loaded and deflects such that the device interacts with a support surface, the tipline of the vehicle is moved from the first tipline to the second tipline to improve the stability of the vehicle.
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