Diameter Converter for 26 to 31.8

In order for my EDGE stand (diameter 31.8) to be designed for my current bike holder, he works very well and recommends using PETG printing, which I used to print with PLA before, but it split over time.
为了使我的EDGE 支架（直径31.8）能用于我现在的自行车车把而设计，他工作的非常好，建议使用PETG打印，以前我用过PLA打印，但过一段时间就裂开了。