22.5” versus 24.5”

[Ontario Outlaw]

I need new summer drives soon.

I can’t find my summer tires rolling resistance. My winter tires have about 100 rolling resistances. Whatever that means.

But Michelin’s site doesn’t ask for a tire size so I don’t know if an 11R24.5” has more rolling resistance than the same tread but an 11R22.5”

 

[r3gulator3]

Typically rolling resistance changes by tire models not sizes.

 

[r3gulator3]

The advantage short rubber gives you is less wind under the truck creating drag.

 

[Ontario Outlaw]

The advantage short rubber gives you is less wind under the truck creating drag.

You’re talking an inch, if you’re comparing 11R22.5” to 11R24.5”....

I’m not saying you’re wrong I’m skeptical that’s gonna make a difference...

 

[Mike]

22.5 has less rolling resistance. I think it comes from the shorter sidewalls mostly.

 

[Ontario Outlaw]

22.5 has less rolling resistance. I think it comes from the shorter sidewalls mostly.

You’re a short rubber wiener aren’t you?

When you was yanking tanks what were you?

 

[Mike]

You’re a short rubber wiener aren’t you?

When you was yanking tanks what were you?

They were running the 11R22.5 tires.

 

[Ontario Outlaw]

They were running the 11R22.5 tires.

Have you run tall rubber?

 

[Mike]

Have you run tall rubber?

Yes

 

[Ontario Outlaw]

Yes

And...?

 

[Mike]

And...?

And what?

 

[r3gulator3]

You’re talking an inch, if you’re comparing 11R22.5” to 11R24.5”....

I’m not saying you’re wrong I’m skeptical that’s gonna make a difference...

No I’m comparing short rubber 265/75R22.5 to tall rubber 11R24.5. Your talking closer to 2.5”-3”

 

[Ontario Outlaw]

And what?

How did you like it?
Notice any fuel mileage difference?
Look cooler?
Ride better?

 

[Ontario Outlaw]

No I’m comparing short rubber 265/75R22.5 to tall rubber 11R24.5. Your talking closer to 2.5”-3”

Eeewww I don’t think I could stomach low-pro 22.5” rubber...
That’s going too far!!

What’s your brother run on his ‘shaker?

 

[r3gulator3]

Eeewww I don’t think I could stomach low-pro 22.5” rubber...
That’s going too far!!

What’s your brother run on his ‘shaker?

11R24.5

 

[Gdjjr]

Changing wheel/tire diameter will change rpm/mph- typically a taller tire will improve hi way fuel mileage but reduce start and stop mileage and a shorter tire is the converse of that. Speedometer reading will be different from one to the other faster for short slower for tall- but, the above/previous depends on the rear end ratio- if truck came with gearing for a short tire, changing to a taller tire will lower rpm at hi way speed and vice versa for tall to short- 24.5's are cooler so there is that

 

[Ontario Outlaw]

Changing wheel/tire diameter will change rpm/mph- typically a taller tire will improve hi way fuel mileage but reduce start and stop mileage and a shorter tire is the converse of that. Speedometer reading will be different from one to the other faster for short slower for tall- but, the above/previous depends on the rear end ratio- if truck came with gearing for a short tire, changing to a taller tire will lower rpm at hi way speed and vice versa for tall to short- 24.5's are cooler so there is that

Looking cool on yer stool IS important

My truck has long legs. I think she turns 2000 rpm at 95 mph

 

[Gdjjr]

Looking cool on yer stool IS important

My truck has long legs. I think she turns 2000 rpm at 95 mph

Higher rpm = bad fuel mileage- 2000 is pretty high for a large car - LOL

 

[Ontario Outlaw]

Higher rpm = bad fuel mileage- 2000 is pretty high for a large car - LOL

Higher rpm = bad fuel mileage- 2000 is pretty high for a large car - LOL

True. A real double over tranny would be the cats pajamas.
But the days of “get it there as fast as you can and forget the logbook” are drawing to an end, I think.

I used to hate that. It’d be Thursday morning and they want you in Iowa or South Dakota by Friday morning. I remember the first time I looked at dispatch and said you do know that’s 1100 miles away, right?

“Well just do your best” he said

1100 miles? In 24 hours?

 

[Mike]

How did you like it?
Notice any fuel mileage difference?
Look cooler?
Ride better?

The ride is better, softer ride. Fuel economy suffers, that’s the trade off.