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Discussion Starter · #1 ·
I have a 2018 challenger sxt I was wondering if I can use 245/45zr20 103w xl tires? The tire size it currently has are the ones that came out of factory with are 245/45r20 99v.
 

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2010 R/T Classic 6M
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That's the same tire size, so yes.
"245"=width in mm
"45"=aspect ratio (determines sidewall height)
"r20"= 20 inch rim
The other numbers are top speed ratings, max load ratings, etc.
 
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