OK, My rear tires are losing a little air between cuttings :thumbdown: so I removed them and checked for the problem, what I found was the outside sidewall has begun to weather crack & each tire had a very small leak there. So here are my options, Slime, tube, or new tires, they are 16X6.50-8 NHS John Deere, probably the original tires, if I buy new where do you get the best price for your tires. :confused2: This is just for my not big yard on my JD GX75.:laughing: