Originally Posted by
kostyap
I see two types of carbon frames. Example of first is the old style Colnago. It is lugged and made from thicker carbon. Well it may not be as light but it withstands all kinds of crashes and still very nice ride. The other are modern frames with paper thin walls. They might be ok when the load is strictly the type from normal riding but anything else and they break.
Oh do they now.
We don't know the specifics of the OP's crash and likely neither does he, since was flying through the air and all.. That (cheap, generic) top tube might have taken a direct 90-degree hit from something. To generalize from this wreck to "plastic sucks!" is blatantly opportunistic at best.