Thanks for all feedback. I'll contact the seller and see what they say about the void in the headtube.

Its one of the BXT-015 frames, if anyone is curious. I haven't had a chance to fully unwrap it yet - wanted to keep most of it protected while I waited for parts to come in. Just unwrapped those two spots because I was curious on quality. Hoping to get started this weekend (if everything looks ok).

Thanks again.

Hi,

I purchased my first ever carbon frame off eBay. Wondering how to check quality. The area inside the seat tube doesn't seem completely smooth (not bulging out, maybe a little pitted) the same with the headtube. The cupped part seems ok, its the area right beyond. Doesn't seem to be a structural issue - am I being to anal?