265/65R17 vs 275/65R17
275/65R17 is 1.7% taller (+0.51 in) and 0.39 in wider than 265/65R17.
275/65R17 is 1.7% taller than 265/65R17. That is inside the ±3% most shops treat as a straight swap.
Real speed on 275/65R17.
Change in height under the axle.
On the same wheel, split inboard and outboard.
Shop 275/65R17 tires
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265/65R17 or 275/65R17?
Can I use 275/65R17 instead of 265/65R17?
275/65R17 is 1.7% taller than 265/65R17. That is inside the ±3% most shops treat as a straight swap. Also match or beat the original load index and speed rating, and check that the wheel width suits the new tire.
Will my speedometer be off?
At an indicated 60 mph on 275/65R17 you are really doing 61.0 mph if the speedometer was set up for 265/65R17. Going the other way, 265/65R17 would make it read 59.0 mph at a real 60.
How much ground clearance does it change?
Half the diameter difference: +0.26 in (+7 mm) under the axle.