Mine got deformed after about 3000 km, used mostly indoors, and was kept inside, so it hasn't been stored in a hot garage or under the sun or anything like that. I'm 80kg.

HUF22,677.10 | RYET Full Carbon 3D Printed Saddle Ultralight Hollow Comfortable Breathable MTB Road Racing Bike Cycling Seat Bicycle Accessory
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I think some gp5000S TR tires might be smaller due to tolerances, i doubt the rims are differing in size.
There's some chance it's user error as well

Quote from: PLA on September 10, 2024, 11:57:25 AM
Cheji seem to be tall person friendly. I'm 190cm and have 3 of their skinsuits in large and a pair of long bibs in xl. They go up to xxxl so may cater for you, Shaq.

I'm the same height, can I ask what's your weight and how well the XL and the L fits you? Thanks!