Technical FAQ: Sitting on a carbon top tube at speed, especially a counterfeit one
by Daniel Benson from on (#62DKG)
Counterfeit carbon frames not only are shaped, painted, and decaled to look like the brand-name frames they are mimicking, but they are often also built to weigh the same as those brand-name frames.
Read the full article at Technical FAQ: Sitting on a carbon top tube at speed, especially a counterfeit one on VeloNews.com.