How much wider is a wheel with -12 offset compared to the original?
2 Answers
A wheel with a -12 offset extends the tire outward by 1.2 centimeters. Below is relevant information about wheels: 1. Introduction: A wheel hub is the rotating part that connects the tire's inner rim to the wheel's core via spokes, i.e., the metal component mounted on the axle that supports the tire. It is also called a wheel rim, steel rim, or simply a rim. Wheel hubs come in various types based on diameter, width, manufacturing method, and material. 2. Types of Wheel Hubs: Wheel hubs are also known as wheel rims. Depending on the characteristics and requirements of different vehicle models, the surface treatment processes for wheel hubs vary, mainly categorized into painting and plating. For ordinary vehicle models, less emphasis is placed on the appearance of the wheel hubs, with good heat dissipation being a basic requirement. The process typically involves painting, where the hub is first sprayed and then baked, offering a cost-effective solution with vibrant colors and long-lasting durability. Even when the vehicle is scrapped, the color of the wheel hub remains unchanged.
The thing about -12 offset wheels, you really need to know your original ET value to calculate it accurately. For example, if your factory ET is 40, switching to ET-12 wheels means they'll stick out 52mm more. If the original ET was 30, then it's 42mm outward. But remember, the width change is also affected by the wheel's own width. I suggest removing your original wheels first - the steel stamp on the back definitely shows the original ET value, and it's best to use calipers to measure the distance from the mounting surface to the wheel center for confirmation. If you go too extreme, the tires will protrude beyond the fenders, which is especially annoying in rainy weather as it'll spray mud everywhere.
