This.If they can’t size the race area properly….. what else is wrong?
There's too many things off. I buy a lot of Chinese stuff and I love Alibaba/aliexpress. But I also get a lot of duds. Usually we can be happy knowing that what we are buying less for is inferior finish, usually not as long lasting, usually slightly rougher finish but structurally it's usually sound. This is a bit too fishy. But I know that many have had long lasting Toseek parts, but this is a testament to how varied results can be.