Fix the rear fork end of the bearing on the test bench through a fixed shaft, fully simulate the original size of the frame, and lift the front fork frame to a height of 300mm under load configuration and drop it. Observe the mechanical strength of the front fork and frame after testing. According to the standards: made in accordance with the requirements of sections 6.2.1.2.2 and 7.3.1.2.2 of GB17761, section 4.1.2 and Figure 1 of ISO 4210.6-2014, and section 4.8.2 and Figure 28 of EN14766:2005.