Hi I wanted to share what I have learned regarding wheels and tires for the Ford Think.
Stamped on the back of the original wheel is the off set. Which is ET 20. This is a positive offset. All other golf carts have a negative offset. Thus when you put a 3x4 offset wheel on it will stick past the fender 2 inches plus depending on your tire size.
There are no chrome 14 or 15 inch wheels with a positive offset that will fit on a Think properly. The only 14 inch chrome wheel I found was one with a 0 offset. This was the RHOX Vegas Chrome wheel.
I mounted Duro Excel 225/40-14. This tire is 1/4 inch wider then originals. This tire is 21 inches tall. 1/2 inch taller then original.
These tires look and ride real nice. They hang out 1 1/4 inches past the wheel well. Any wheels with a larger offset then 0 or with wider tires will extended out even more. Being 1 1/4 inch past the wheel well works ok. Does not spray me.
I bought my set from Golf Cart Tire Supply for $720 mounted and delivered with lugs.
I could not figure out how to post a picture. When I do I will post my cart.
I hope this was helpful