[MrChip72]

I was having a look at my tires today. My front ones look in decent shape but my rear ones look to be worn down more. Would it be normal practice to rotate my front and rear tires to even out the life of them? Are the front and rear usually the same exact size?

When it comes time to replace them, is it better to go through a dealer or do people deal through local tire shops?

One last one, I tested my pressure today and most of my tires were below 15 psi. That seemed lower than what I've researched so I filled them up to 21 psi and the cart seems to accelerate smoother and the ride seems about the same, maybe even better on paths. What range of psi do most people go with. I have a 4 seater Yamaha gas.