Because Golf carts do not do the same speeds as cars it is not as important to replace them regularly, but if they are going flat frequently or the ride in the cart is becoming bumpy, it is time to replace them.
replace the 16" wheels and tires with 12" wheels from a golf cart
You can buy golf cart tires from major company's on the internet, for example, Amazon, Ebay, and Sam's Club. But there is a website specially created for golf cart tire's, Golfcarttires
yes you can they would just be huge on it
Yes, if the lug pattern is the same.
replace on board computer
It depends on the use, but yes, they have to be replaced periodically.
Many gold cart tires have different sizes and dimensions from brand to brand. Also, the tread pattern on your tires should vary depending on the turf you are working with.
It depends on the size of the wheels. For example, if the golf cart wheel is in an 8" size, the tire will end in an 8" size (20x10-8 & 22x11-8).
You can buy a golf cart wiring in a golf shop.
Depends on the type of cart. What type of golf cart do you have?
golf cart = Voiturette Trolley = chariot