Originally Posted by yellow15
just a silly question, how do you know when the spring is toasted?
I've been using the same 0.020 spring for at least 30 runs (and countless crashes!!) but it still look okie to me when i last check it?
how to tell when i need to replace it?
If you built your front end right the e-clip should go over the spring with no preload and the spring should have no play on the king pin. The length of the spring is a perfect fit for the space on the king pin.
As Kevin said when they are blown out they get shorter and you can see it pretty clearly.