Carbon Wheel Heat Bending After riding about 800m downhill, I got this:






BTW, this is TriAce Wheelset for Dahon Mu Ex 2014. Do you think this is safe to ride? Can I repair this?
To answer your questions


No, they are not safe to ride due to risk of the tube blowing out or the tire rolling off the rim.
No, I do not think they are repairable (at home). If they were repaired I would not trust them again.


I believe that this item is not fit for the purpose of a bicycle wheel.

It should be returned to the place of purchase on those grounds and a replacement or refund sought.