running 225 50R 16's on car. want to go wider (bigger) in back like old school muscle cars. Can I run bigger rims on back or just wider tires

What are you driving?  As you said 16's, I'm assuming a newer car?  You can go bigger rims on back, but you might have to run shorter (rubber band) tires to make up the gap.  Front wheel drive makes the back rims, drag along for the ride.  Depends on how much room you have to work with.  Trip to a local tire/rim shop will answer all your questions.  How bout a pic of your ride?  We like pic's round here.

2001 grand am gt

Welcome, got any pics of the 2001 Grand Am? In case nobody's mentioned it we really like pics around here. 

5 minutes ago, Wrongway said:

Welcome, got any pics of the 2001 Grand Am? In case nobody's mentioned it we really like pics around here. 

yeah Ringo, we need a pontiac  "want pics gif ! " 

Edited April 4, 20242 yr by 64 kiwi boni

10 hours ago, 64 kiwi boni said:

yeah Ringo, we need a pontiac  "want pics gif ! " 

We have this emoji lol

Thats works Ringo! 

Hey gt75th 

I love it!

On 4/3/2024 at 6:37 PM, gt75th said:

running 225 50R 16's on car. want to go wider (bigger) in back like old school muscle cars. Can I run bigger rims on back or just wider tires

Obviously it’s a matter of taste, but in a nutshell you can easily run an 18” rim with the right, adjusted offset. As well as a larger tire. For instance, if you were currently running a 16” rim that is 6 1/2 “ wide & has a 45 offset. That also has a 225 50 16 tire mounted on it. You could easily move to a 18” rim 8” wide that has a 40 offset & carried a mounted 245 45 18” tire. Now the difference it would generate is as follows: your speedometer would read about 5 miles an hour slower than you were actually going. The car in general on dry roads would handle better, but on wet roads it would handle worst. Your unsprung weight would be higher & tires would cost more & fuel consumption would increase. The degree that any of these would change is speculative, but they would change!