225/50/18 circumference : 84.35 in
245/45/18 circumference : 83.81 in
255/45/18 circumference : 84.91 in
All fairly close, 245/45 is a little closer. Main reason i will be goin with a 255/45 right now is because i have a full set of four sitting in the garage that have less then 2k miles on em lol. Use to have them on my Altima but traded it in for the 370z lol.
Quote:
Originally Posted by Vbp6US
Would the speedo be off much more if you went with 245/45/18 on the front?
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Our speedo is run off the rear wheels not the front. Speedo's read off the tranny and ours are luckily connected to the rear wheels.