They just forgot to remove some of the paint from the inside, it shouldn't be inside the frame.

It's definitely more than just some paint from the inside. I had to sand it for a good 20min with 80 grain sandpaper just to get the seatpost to fit in the frame. I had to remove quite a bit of material and the problem wasn't actually right at the top but it was after the clamp so a good 3-5cm in the frame.

Anyway in the end I got it to work and Spcycle agreed to send me a new carbon seatpost since mine was ruined, but in a perfect world it shouldn't happen.

Hopefully everything else is going to go smoothly 

Hello everyone,

I got my G028 frame a week ago and today when I tried to put a seatpost in I encountered a problem. The seatpost couldn't go down the seat tube because the hole was too narrow.

I reached out to Spcycle (who responded almost immediately) and they told me to sand it down to help the seatpost go down. Problem is after a bit of sanding the hole was still too narrow. They suggested to sand it heavily as this area is really sturdy and there is a lot of material. After quite a lot of sanding with a coarse sandpaper I got the seatpost to fit (still really tight). But now one of the area I sanded has no visible carbon anymore (see pics).

What's your suggestion ? Is it ok or not ? Spcycle told me to use the frame with confidence but I rather have some other opinions.

Thanks for your help.