On Tuesday, August 6, 2019 at 11:20:11 AM UTC-7, AK wrote:
Anyone experienced a broken bike frame as seen in the upper right corner of this picture?

https://imgur.com/7i148lV

Andy

This is NOT uncommon with carbon fiber bikes. They generally fail from internal defects that cannot be detected from outside. The manufacturing processes are maturing and this happens less often as time goes on. But it happens enough that Colnago states that they will not give a warranty of more than three years in the USA and everywhere else it is only two. The American manufacturers often give lifetime warranties because you general change bikes often enough that they are free of warranty burdens pretty rapidly.