If you check the sticker on the door post, it will tell you thenun original tire size. From there you can judge if you should go back to original. Some Sr5's had 31x10.50's as original, in that case you would definitely be going slower than your speedo with 225's mounted.
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225 was the original standard size. However most if not all 4wd were changed to 265/70 at the port. However, its not unusual for a Toyota to register 3 to 4 miles per hr faster on the speed than actual speed. Going to a 265 may get it closer.
If you check the sticker on the door post, it will tell you thenun original tire size. From there you can judge if you should go back to original. Some Sr5's had 31x10.50's as original, in that case you would definitely be going slower than your speedo with 225's mounted.
Sent from my HTC One_M8 using Tapatalk