Technical Q&A with Lennard Zinn – Are old tires safe?
Aging tires
Dear Lennard,
I have known people that have road bicycle spare tires in their garage for more than two years. Also, I have a nine-year-old Nokian studded tire on the front of my mountain bike for snowy/icy conditions.
I have a pair of Michelin Pro Race tires that have been in my garage for four or five years, and have only been pulled out of their boxes a few times. Although they have not been exposed to sunlight, I am concerned about the pressurizing these tires to 115-120 psi considering that they may have dried out.