Just decided to throw new ones on when I had my rim replaced. I think the back is a Kenda but I'll have to check in the morning. 110/90/19 and 80/100/21. Came from my 250t.
About 50% maybe more. Good if you want something on the cheap or are looking to replace before you sell.
Make offer. Will meet around Lewisville or at track on Sunday. Will not ship.
Post is worthless without pictures - will post tomorrow with model of tires.