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The problem with torque wrenches is that outside of the professional aviation or automotive industries, no-one seems to calibrate them. I have two Park and one Shimano/Pro wrenches here and none of them have ever been calibrated since I’ve been here. I worked in the aircraft maintenance industry before and you had to take a wrench from the store (you weren’t allowed to use your own) and then check it out on the test rig before you used it. You had to do this each time you took one out or you’d be on a written warning at first and a formal from then on.
So in short, a bad torque wrench is just as bad, if not worse, than not using one.
jj72
Howard
Shock bolts should be tight from the factory yes, as should a certain percentage of the bolts on all bikes. As the bikes out of the box are mostly assembled, they need to be built, torqued to spec and checked over.
All shops are guilty of not using a torque wrench. I spent time with a racing team and I was laughed at for asking for one.
Go figure.