Originally Posted by
Numerozero
I would strongly suggest watching his video before commenting. Sachin (Hambini) is an aerospace engineer, specializing in aerodynamics, who works for (I think) Airbus. So, no, he doesn't need the measly YouTube income.
He only started his YouTube channel when a couple of his high-end carbon frame bikes started failing. Typical engineer - he researched and was astonished at how many carbon frames are made to such poor tolerances for press-fit bottom bracket bearings. Worse still, after he pointed this out for a certain brand, that brand retroactively INCREASED the tolerance limits so they could then claim it was not their fault, but rather the LBS or misuse by the owner. Ugh. (He also polled a number of bearing manufacturers, who all stated they will not warrant their bearings if used in such sloppy tolerances)!
I'm also a mechanical engineer, and can vouch for his analysis.
I came across Hambini longer ago for the BBs and I am afraid this is also the same marketing vs engineering take on the same. He makes a lot of sense in lots of his videos if one can abstract themselves from him sounding borderline infantile. Most people would prefer a well-spoken person with non-engineering degree sell them something shiny to listening Sachin's style presentations. Whether that's right or wrong, it's a matter of fact.