Originally Posted by abstractform20

i think the reason many of us doubt the ability of the helping friend is because he continued to keep wrenching after hearing cracking sounds.

would stopping after cracking fix any issue with the bars? no.

would continuing to wrench after hearing cracking in carbon bars fix anything? no.

it is irrational and counterproductive to continue the process once failure has occurred.

also, i found it weird that the friends mentions thinking that the cracking might have been the sound of the bolts threading in.

if the integrity of the bars was compromised, but was not visible from the surface, then the safety of the rider would be at risk.

if i worked on someone's bike and heard cracking or any other breaking noise, i would inform the person that the bike may not be suitable to ride.

so while we do not have proof that the failure was due to the mechanic or the handlebars, there are many of us who would refuse the service of the man who keeps cranking after hearing cracking.

ps- in addition, that the mechanic will not admit that it was foolish or an "dumb moment" to continue wrenching after hearing cracking, adds to the doubt of his claims.