Originally Posted by
MikeyBoyAz
all [carbon] bars I have used have a limit of 4Nm... did that same thing to a set of xXx bars... my bontrager 4Nm wrench did the trick

sorry to see you had the same experience.
Really? The two carbon bars I've had have booth been 5 Nm, or 5.5 Nm for the one I'm riding now. I had assumed all carbon bars took ~5 Nm; it seemed like that's why they made that torque key?
Originally Posted by
dayday82
Oh. My stem requires 5Nm though.
Your stem has a max torque of 5 Nm before you start to strip the threads on the [baby bike] bolts, but it doesn't require 5 Nm.
Anyway, I suspect these were defective. Or didn't fit the stem well. Or something like that.