While running at the ARRC this past weekendI had the left front upright break at ZIG+ZAG. Fortunately I did not make it to 12 before the failure. Is there a recommended replacement period for this part?
After looking at the break point it looks like it had cracked earlier and we were on borrowed time.
There were two times which might have started the break. A light hit on a Armco barrier and a hard hit in wheel from another car. Will zyglow(??)dye testing find these cracks or must you magniflux them?