The front surface of this rim is designed by honeycomb structures, it's one of the best solid structures in the world, it's designed from real dimensions. The bolts are separate from the main body, you can remove them easily, it also has the bolt holes, you can put your favorite bolt on it.the circle in the center are completely flat, you can add your specific logo or letters easily on it and design it by yourselflet me know if you want to change the scale, I'll modify it for your size.