As years pass by and cycling technology evolves, bikes and parts become more lighweight and fragile.
Not using a torque wrench puts you at risk of a bolt snapping, or indeed a delicate, carbon component giving way.
A torque wrench is a tool used to tighten bolts to the correct level of tension.
In the case of a handlebar, this can be dangerous; and if it’s proven that you’d over tightened a bolt and caused the fracture then your chances of a warranty claim could be voided.
Don't risk something as important and expensive like your bike, look after it, as it will be your life companion.
Tool set, Set 4nm, Set 5nm, Set 6nm, Full set, 5nm, 4nm, 6nm