I got a couple of ? These MT's were gave to me 28x10.5x15
1. Do you have to run tubes?
2. What is the proper care of them when there not in use?
3. How much air pressure should be in them?
4. how much to grind off the rear calapers?

Thanks for the help.

 

you don't need to run tubes.

i just throw mine in the garage when not in use. i have seen others leave them outside.

depends on what kind of traction you are getting. Slowprocess runs about 13pounds in his. i run about 18 in mine. on the street you need to run more of course.

and i don't know about this one.