Hi,
I was traveling out of state and got a flat on my front tire. I currently have Nitto Invo's that are about 6 years old. They couldn't get anything except a Yokohama - Advan S.4 V403.
So I am debating replacing the other front tire with the same Yokohama.
My question is, can I run the Yokohama's on the front and put new Pilot Sports on the rear? Or should I bite the big bullet and replace them all with the Pilot Sports?

Thanks!
Gary