I agree we worked on bikes for years and never used torque wrenches. While i was going through basic Aviation mechanics in the Marines I was taught that most all tools are sized to approximately the correct amount of torque to the fastener they are tightening.
I believe the recent increase in tourque related notices has more to do with liability than with mechanical performance.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk