Disadvantags

Are Their any Real disadvantages to putting 20"rims on amustang besides being ridiculed ?

gearing will be taller. Car will look bad. tires that thin wear fast cost lot. ride quatity will be crap. Loss of power to due huge amout of weight *most 20s are in the +40lbs range*

gearing will be taller. Car will look bad. tires that thin wear fast cost lot. ride quatity will be crap. Loss of power to due huge amout of weight *most 20s are in the +40lbs range*
Well, the gearing won't be taller. That's why the tire sidewall is soo small, to accommodate for the extra rim size.

The only thing 20" rims will have are all disadvantages.
-Heavy rims=slower acceleration
-super low profile tires=expensive to replace
-Very small sidewall=very bumpy/horriable ride
-heavier rotating mass=harder to stop
-More rim, less sidewall=more pinch flats
-More rim, less tires=pothole dings
-Rims that cost more then car=Priceless!

Well, the gearing won't be taller. That's why the tire sidewall is soo small, to accommodate for the extra rim size.

The only thing 20" rims will have are all disadvantages.
-Heavy rims=slower acceleration
-super low profile tires=expensive to replace
-Very small sidewall=very bumpy/horriable ride
-heavier rotating mass=harder to stop
-More rim, less sidewall=more pinch flats
-More rim, less tires=pothole dings
-Rims that cost more then car=Priceless!


W3RD! LoL

They'll look horrible to boot. Just get a clean set of 18s.

Well, the gearing won't be taller. That's why the tire sidewall is soo small, to accommodate for the extra rim size.

The only thing 20" rims will have are all disadvantages.
-Heavy rims=slower acceleration
-super low profile tires=expensive to replace
-Very small sidewall=very bumpy/horriable ride
-heavier rotating mass=harder to stop
-More rim, less sidewall=more pinch flats
-More rim, less tires=pothole dings
-Rims that cost more then car=Priceless!

Highflo even with a tiny sidewalled tire the extra inches would increase the gearing a tiny bit i'm pretty sure. Theres a gearing calcutator out there somewhere i think Mazdas roadster club .com or somthing like that has one if i can find it i'll link it its a great thing to use for picking wheels and tires.

Highflo even with a tiny sidewalled tire the extra inches would increase the gearing a tiny bit i'm pretty sure. Theres a gearing calcutator out there somewhere i think Mazdas roadster club .com or somthing like that has one if i can find it i'll link it its a great thing to use for picking wheels and tires.
Not so.
Take my car for an example. Currently I have 16" rims with roughly a 4.5" sidewall and an overall height of 25". With my old 15" rims, there was roughly a 5" sidewall, and still retained an overall height of 25". Now an overall height of 25" is pretty common on these cars, so running a 20" rim will leave you with 5" to spare or a 2.5" sidewall.

So starting with a stock tire size of 225/60/15 and you want to increase the rim size, you will have to come down 5 on the sidewall for every inch you increase the rims by.
225/60/15
225/55/16
225/50/17
225/45/18
225/40/19
225/35/20

OOOOO okie thanks for clearing it up for me!

Will add tire wear, add weight and might put your car higher if you change it all for them.