by RichD » Wed Mar 13, 2019 7:37 am
Rubber tires do not always last a long time, if they are formulated correctly they might still be half way decent after 40 years, if not they could turn hard or just fall apart in a year or two. If it was me I would prepare a new set of tires each year and compare them on the track with the old set. If the new set was as good or better I would run with them.