lol. not going to hate you
I ride very aggresively and even though I am alightweight I wouldn't particularly want to ride a full carbon frame. I throw my bike about to much at home, pub etc and ride on the ice and snow in the winter too. lol Would love dura ace though
No idea on the Lumens of my poundland jobby but does a good job for my purposes.
As for the BB my bet is a flatted bearing. I had one once which did that knocking sound. Lasted for a few years then suddenl;y no drive at all.
However what it could also be is the freehub on the rear wheel getting a little jammed. Then you are just feeling it through the contact point (peddle) and your brain thinks it comes from where you feel it.
I remember once I had a brand new £500 Claud Butler mountains bike. rode it for a few weeks and the steering suddenly stopped working just as I was navigating a pedestrian 'chicane' in the centre of the road. Was stuck in the railings as it carried on forward whilst my hands were pointing to the right.
Got that home and several ball bearings fell out which were quite literally hemispheres instead of spheres. they had dug a groove in the steerer so deep that I took the steerer off and it instantly split into 2 pieces. That would've been an even bigger crash. lol
CB offered me a £1k replacement for my troubles to which I replied, no give me my money back. Bought a Raleigh Banana instead
If something makes the slightest noise on my bike the kitchen is covered in bike bits and oil. lol. It even really bugs me when 2 cable outers rattle against each other to the point I even put little felt pads where they would contact each other.
Andy