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tyre size for a R/T

5K views 22 replies 7 participants last post by  R/TWildChild 
#1 · (Edited)
after a bit of advise :) just bought a set of rims for my R/T 8.5 x 20 for the front and 10 x 20 for the rears

what would be the best tyre sizes to run. there seem to be 2 recommendations

245/40/20 front and 295/40/20 rear

or

front 255 / 45 and rear 285 / 40

i want to run as wide as i can but no rubbing, its 09 R?T not lowered


i've seen 245/40/20 front and 295/40/20 rear on a srt and like the look but does the srt have more or less clearance ?


any help would be great
 
#4 ·
To keep the diameter and revs per mile close, I would recommend that you install a 255/40/20 on the front and a 295/35/20 on the rear. This will also give you a cool "old school" look.

I wouldn't try to squeeze a 275/40/20 tire on an 8 1/2 inch rim. The minimum size for this tire is a 9 inch rim. If you install it on an 8 1/2 rim, it will not perform or wear properly.

Check out this handy tire size calculator:

http://www.1010tires.com/Tools/Tire-Size-Calculator/245-45R20/285-45R20/285-40R20/245-45R20
 
#5 ·
Thanks Cuda 340, do you know any one running that set up that might have any pictures online

thanks
 
#7 ·
thanks have you got a side shot of your car sounds just what i'm looking for

thanks
 
#11 ·





It's all in the details. What offset are the wheels you bought?


My Challenger above has the same size wheels 20x8.5 with +15mm front and 20x10 with +30 rear. My tires are Nitto Invo 245/45 and 315/35.
 
#12 ·
I've got Nitto Motivo 275/40 on the rear, on my heritage classic rims, and they fit fine with no bulge. So far they have driven fine for past 8 months. rims are a hair narrower than I'd like for this tire, but the nitto tires almost always run a little narrower than other brands of the same size, I'd rather of had 10 inch rims on the rear and had always had 9 inch rims for using 275s in the past, but they work great on the heritage 8.5 inch rims as well.
 
#17 ·
Thanks for all the good advise guys it all turned out well, really happy with the results
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#18 · (Edited)
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