I have about 7k miles on this rear kenda, time to replace?

I have been having the itch for a while to replace the kendas with the general altimax tires.

But being frugal I dont want to replace them if it is not time yet although it will be time for the rear soon enough.

Both front tires were replaced at 3k due to damage on the front end when I had a accident last June so those only have about 4k on them.

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