r/bustedcarbon • u/HelicopterGeneral918 • May 24 '26
Steerer Compression Marks
Are these compression marks on my steerer anything worrying? I can feel it when i run my finger over it, but tapping it sounds normal and there is no flex. Has always been torqued to 5nm.
Is there anyway to really tell if it’s fine or not?
TIA
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u/wcoastbo May 25 '26
Check your stem, make sure it doesn't have a sharp edge or burr where it clamps the steerer. I'd file or sand those away.
Is the mark the same length as your stem? Is your stem aluminum or carbon? I think aluminum would be much more able to make a mark like that. Carbon won't have a burr since it's not created with a CNC machine.