Different oem tire sizes

[88mike]

Hello everybody, so I got a 2014 z71, still looking for a ppv or ssv, I already know about the difference in speedometer readings if the overall size of tire being smaller or bigger. This z71 comes with 265/65/18, id like to swap for a low profile like the 265/60/17, but didn’t wanna have to mess up with reprogramming the computer to show the correct speed. Also kinda would be spinning more the wheels to get to a place.
Anyways my
Question is, is the handling response same if using the 265/65/18 and 275/55/20 comparing it to the ppv size tires 265/60/17?

 

[Joseph Garcia]

I cannot help you with a PPV handling comparison, as I've never owned one.

You can go to TireRack.com and compare the overall diameter of various tire size/profile options that will preserve your speedometer/odometer options, and avoid reprogramming. For my 07 Yukon XL Denali, the stock tire size is 275/55x20, and when I purchased it, it had 275/60x20 tires on it. Ultimately, I converted to 305/50x20 tires with no rub or wheel well modifications, and they have about the same overall diameter as the stock tire size (the Tire Rack spec page was helpful in determining an overall tire diameter to restore my speedometer/odometer correct readings without reprogramming).

If handling improvement is what you want, in general, a lower profile tire will handle better. Good shocks and suspension/steering-related bushings in good working order are essential. To really upgrade handling, get yourself a set of front and rear Hellwig sway bars, and you will have a great handling truck (for a truck, of course). In my test cloverleaf (I always want to see definitive tangible results in any mod that I make), I was able to gain an additional 5mph going around the curve, with VIRTUALLY NO body roll. They are pricey, but totally worth if, if you place high value on handling.

 

[Marky Dissod]

... got a 2014 z71, still looking for a ppv or ssv, I already know about the difference in speedometer readings if the overall size of tire being smaller or bigger.
This z71 comes with 265/65R18, id like to swap for a low profile like the 265/60R17,
but didn’t wanna have to mess with reprogramming the computer to show the correct speed.
Also kinda would be spinning more the wheels to get to a place.
... Question is, is the handling response same if using the 265/65R18 and 275/55R20 comparing it to the ppv size tires 265/60R17?

265/65R18 = 31.56" ... 265/60R17 = 29.51"
Speedometer will be 7% faster than actual until you reprogram for the difference.
At least your oil changes will happen on time ...

Less wheel (mass) = better ride. More wheel = better handling.
More sidewall = better ride. Less sidewall = better handling.
Tough to achieve both at the same time without excellent shocks.

275/55R20 is going to handle better (but ride less comfortably) than the other two tire sizes,
because it has the least sidewall, and also it has wider treadwidth ... and it also has more tires to choose from.

https://www.1010tires.com/Tools/Tire-Size-Calculator3

It can compare up to 5 different tire sizes against each other.

 

[j91z28d1]

been my experience that turn in feel is more about the tire type than being a half in shorter. a very expensive high end sport suv market tire will be more crisp than a lower end truck tire. LT truck tires usually have a stiffer side wall for towing that should feel stiffer in the front too.

trade off being ride

 

[88mike]

265/65R18 = 31.56" ... 265/60R17 = 29.51"
Speedometer will be 7% faster than actual until you reprogram for the difference.
At least your oil changes will happen on time ...

Less wheel (mass) = better ride. More wheel = better handling.
More sidewall = better ride. Less sidewall = better handling.
Tough to achieve both at the same time without excellent shocks.

275/55R20 is going to handle better (but ride less comfortably) than the other two tire sizes,
because it has the least sidewall, and also it has wider treadwidth ... and it also has more tires to choose from.

https://www.1010tires.com/Tools/Tire-Size-Calculator3

It can compare up to 5 different tire sizes against each other.

Thank you so much , yeah is true, can’t have both same time. So what about if I have two set of wheel with tires? Because I was thinking to swap the wheels with tires already . Them when i need more of one of these two features, handling or comfort I can choose. But for me the best is the safest one on highway. And even though comfort is good, I hate that feeling of boat ride when I need quickly move to the side to not hit something on the road.