ok guys, so i was wondering, a 4inch double female without holes, there is like a lump, after the threads, causing the actual ID to go smaller, and for some reason tcss chassis discs, or even a pvc one wont fit, since the board widens the pvc just a bit to much, cause without the board/battery the pvc will slide in, i sthis how it normally is? I thought like, it should be 1.25inch or close to that ID.
Thanks
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