Originally Posted by
IAMAMRA
I actually do keep my bike well maintained and had gone over all the bolts on my bike the week before(I do it everytime I work on my bike). What I can tell you is this, it was fine before he used it, and afterwards it was not.
And again apologies, but what makes your brother different from you that he would put
more force on the seat post clamp than you would, given that you say you are about the same weight? In addition, have you ever had the seatpost clamp apart to check wear on the teeth?
I think you are accusing your brother of a misdeed that he's not really guilty of.