A. This front steering knuckle stands out among automotive accessories. It is carefully designed for specific models, including TRX 250R, 300X, 400EX, 450ER, and Brute Force 750i. B. In terms of design, it features an M12XM10 internal thread specification. The axle nut with a slot also has an M12XM10 internal thread and a thickness of 9/50 (mm). Such a precise design can be largely compatible with relevant models, ensuring the accuracy and stability of the steering system. Although the axle length and the diameter of the kingpin hole need to refer to the illustration, it's certain that every detail has been carefully considered and designed to meet the steering function requirements of different models. C. The steering ball joint is an important part of the front steering knuckle, which plays an important role in the flexibility and controllability of the vehicle's steering. This steering ball joint can effectively improve the vehicle's steering performance, making it easier for the driver to operate, while enhancing driving safety and comfort. D. Additionally, it weighs 0.36 kilograms. Its weight is neither too heavy to increase the vehicle's burden nor lacks sufficient strength and durability. It can be used stably for a long time under various road conditions, providing reliable support for the normal operation of the vehicle. Whether in daily driving or on special road conditions, this front steering knuckle can perform well and is a good option to improve the performance of the vehicle's steering system.