Wheel specifications refer to the detailed measurements and characteristics of a wheel, which are crucial for ensuring compatibility with vehicles. Key specifications include the wheel diameter, width, bolt pattern, and offset. The diameter is the distance across the wheel, while the width measures how wide the wheel is. The bolt pattern indicates how many bolts are used to attach the wheel to the vehicle, and the offset determines how far the wheel sits from the vehicle's hub. Understanding these specifications is essential for selecting the right wheels for a vehicle, such as a car or truck. Incorrect specifications can lead to poor performance, safety issues, or damage to the vehicle. Properly matched wheels enhance handling, stability, and overall driving experience.