Originally Posted by
dsaul
Looks fine to me. That just looks like a line from the overlapping carbon fiber cloth.
Originally Posted by
easyupbug
A steerer failure of some kind is not a risk I would take as I think the consequences could be very serious. There should be a carbon "shop" that builds/repairs carbon not too far from Carona that could render an opinion upon inspection, too difficult from that photo. Properly fabricated carbon is not fragile when used as intended but the strength is directional and is very unforgiving with point loading.
It looks like the overlap or seam of the carbon cloth, the manufacturer won't spend time and money polishing the steerer tube that won't be seen. It saves them a few pennies per fork.
If it really bothers you, take it to a few shops and ask them to have a look at it and render an opinion. Don't forget to buy something and/or tip the wrench.