You would have to take all your tires off and put the car on car jacks. You will have to take the old tires with you to have the new tires you purchase put on the old rims. There is going to probably be a cost involved in taking the old tires off and putting the new ones on. You cannot change the tires to your old rims yourself without a special piece of equipment. You will also have to pay to get rid of your old tires.
In order to find the proper replacement for your bike tire you need to measure the wheel and determine which type of tire your bike uses. You can also take it to a bike repair shop and they can help you pick out a replacement tire.
Look at the sidewall of the tires already on the car... that is your replacement tire size.
165/80r15
A 225 75 R16.5 tire is the standard replacement.
You can find a replacement tire just about anywhere. At Jiffy Lube, Costco, or any other automotive dealer. Even at some gas stations, they offer tire replacements.
When the tire tread wears down to the wear bars, the tires are ready for replacement.
Until you run out of fuel
305 is not a tire size. What is the complete size of the tire.
There are specific store that carry that paticular brand John Deere. You can try searching online for a replacement or in the phonebook to try and find the tire.
Yes, you can use a replacement tire of 175-65-r15 for a 195-55-r15 rim.
You can purchase a replacement Jeep Liberty tire cover online from stores such as JCWhitney. Alternatively, you can purchase these covers from retailers such as Amazon.
The Commercial Tire Company offers a wide variety of tires. Commercial Tire Company also offers tire replacement and tire patching jobs for different types of vehicles.