Length [mm]: 51.1

Cylinder diameter [mm]: 84

Bolt diameter [mm]: 22

Supplementary Article / Supplementary Information 2: for trapezoidal connecting rod

Degree of compression (compression) [mm]: 32.4

Concavity diameter [mm]: 47.63

Bolt Length [mm]: 48

Concavity 1 [mm]: 4.2

Depth of pocket of valve1 [mm]: 3.16

Depth of pocket of valve2 [mm]: 3.09