I have been told not to bother upgrading a cheap 6061-T6 frame and just buy new, but the suggested new bikes also have a 6061-T6 frame.
Are all 6061-T6 frames not equal? How do they differ apart from geometry?
I don't need to know why 6061-T6 is not as good as Steel/Carbon/Ti, as I am already aware of the different properties there that make them great. I just want to know how to grade a 6061-T6 frame if they vary so much.
Thanks in advance for any and all help