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2019 AWD SXT +
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Discussion Starter · #1 · (Edited)
Just got some new wheels in 20x8.5 that came with 245/45 tires but would like some more meat on them for when it's time to change them. Can I go 245/50 to get some more meat on them without issue? Pretty sure I can do 245/50 but wasn't sure. I’ll check online tire sites also.

Thanks.
 

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2016 R/T Scat Pack
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I had 255/45-20 on 9" wheels on my old R/T. The wheel charts say they will work on 8.5" rims also. Not much wider but they looked and handled better.
 
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Discussion Starter · #3 · (Edited)
Just looking for a bit more sidewall height so would 245/50R20 on 20x8.5 wheels also work?
 

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Just looking for a bit more sidewall height so would 245/50R20 on 20x8.5 wheels also work?
That would work for your rears (29.6" dia) but remember, those 245's are pretty skinny for the challenger in my opinion. Raising the height of the tires would also give them a narrower appearance from behind.
I would do a 265/45r20 for the rears. It will give you a nice sidewall and a wider tire. It will be a 29.4" diameter. No problem on a 8.5" rim.
If you want to do a squared setup (all tires the same), I would do 255/45r20's all around. You are limited to your front clearance geometry.
 

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Discussion Starter · #5 ·
Yeah I’d have to do squared because of the AWD.
 

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2016 SXT Plus Blacktop
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I always think of this when anyone wants to use a taller tire


Diameter is .9" more, so .45" taller sidewall...
1016803

A Guy
 
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Discussion Starter · #7 ·
Thanks Guy, that's very helpful. Looks like 245/50 should be fine and last night I was looking at Tire Rack and it said for many similar sized wheels, including the same ones I have, it lists the recommended tire size as 245/50.
 
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