Narrow vs wide tires - 245s vs 265s or wider - Jeep Commander Forums: Jeep Commander Forum
Wheels / Tires This section contains discussion about wheels and tires for your Jeep Commander.
Sponsored by: Discount Tire

 4Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 18 (permalink) Old 10-18-2016, 10:43 PM Thread Starter
Member
Points: 6,847, Level: 54 Points: 6,847, Level: 54 Points: 6,847, Level: 54
Level up: 49% Level up: 49% Level up: 49%
Activity: 0% Activity: 0% Activity: 0%
 
zing's Avatar
 
Join Date: Nov 2007
Location: Seattle, WA
Posts: 39
Garage
Narrow vs wide tires - 245s vs 265s or wider

For a while now I've been trying to decide between 245/75/r17 vs 265/70/r17 tires (basically the same height). I've read through discussions about tire width on the forum and thought I'd add a couple things that helped me decide (for those who spend entirely too much time thinking about such small issues like me).

The main debate is whether tall/fat tires with a larger contact patch perform better than tall/thin tires with smaller contact patch. One the one hand a fat tire will exert less pressure per square inch than the thin tire. However, because of the larger surface contact, it should provide more friction, and as a result traction. One the other hand thin tires exerts more pressure per square inch underneath the tire. As a result, it can "bite" into the road better as some would argue. The reality of what performs better it depends on the conditions you drive in. Here is a white paper by a company called Expeditions West that makes the case that a thin tire is a superior choice for all off-highway surface conditions with the exception of deep, soft sand or mud. I would add to this powdery snow. The other factor is traction when making turns and that wider is better, which I've learned has much to do with the composition of tires and stiffness of the sidewalls as the width. Here is a good discussion from a racing forum on on this. Friction is also related to gas mileage, and I think that also depends to a large degree on the composition of the tire as much as the width.

In the end I'm probably going with the wider 265/70 tire (probably Goodyear Duratracs). I used to do a lot of offroading but most of my driving these days is either around town or on the highway towing a small travel trailer. I just think the 265 width looks better on the XK especially with the wheel setup I'm planning (8" wheels with +10mm offset), and I don't think the 0.79" difference in width between 245 and 265 will make a noticeable difference in my performance or gas mileage.

Again I hope this is helpful for anyone else on the fence.
bluedakotasky likes this.

2006 5.7L Hemi Limited | Steel Blue | Saddle Brown Leather Seats | Rocky Road 2.25" Lift | Ultra Motorsports 175 Wheels (17x8" +10mm offset) | 265/70/R17 Goodyear Duratracs | Yakima Mega Warrior Roof Rack | Curt 2" Hitch | Purchased August 2006
zing is offline  
Sponsored Links
Advertisement
 
post #2 of 18 (permalink) Old 10-19-2016, 05:46 AM
Super Moderator
Points: 5,439, Level: 47 Points: 5,439, Level: 47 Points: 5,439, Level: 47
Level up: 45% Level up: 45% Level up: 45%
Activity: 100% Activity: 100% Activity: 100%
 
Big Blue's Avatar
 
Join Date: Oct 2015
Location: Florida - but working out of VA.
Posts: 1,217
Garage
Performance comparison aside, there are also clearance issues created by wider tires.

Once you go wider then 265's you will have clearance issues when you turn your wheels all the way in one direction or the other, which means you either have to add spacers or have to buy custom rims with enough back-spacing & offset to allow enough clearance for the wider tires.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Last edited by Big Blue; 10-19-2016 at 06:00 AM.
Big Blue is online now  
post #3 of 18 (permalink) Old 10-19-2016, 10:12 AM Thread Starter
Member
Points: 6,847, Level: 54 Points: 6,847, Level: 54 Points: 6,847, Level: 54
Level up: 49% Level up: 49% Level up: 49%
Activity: 0% Activity: 0% Activity: 0%
 
zing's Avatar
 
Join Date: Nov 2007
Location: Seattle, WA
Posts: 39
Garage
Good point. With 265s, a +10mm offset and 2" lift I'm anticipating having to do the pinch weld to avoid rubbing.

2006 5.7L Hemi Limited | Steel Blue | Saddle Brown Leather Seats | Rocky Road 2.25" Lift | Ultra Motorsports 175 Wheels (17x8" +10mm offset) | 265/70/R17 Goodyear Duratracs | Yakima Mega Warrior Roof Rack | Curt 2" Hitch | Purchased August 2006
zing is offline  
 
post #4 of 18 (permalink) Old 10-19-2016, 10:56 AM
Super Moderator
Points: 5,439, Level: 47 Points: 5,439, Level: 47 Points: 5,439, Level: 47
Level up: 45% Level up: 45% Level up: 45%
Activity: 100% Activity: 100% Activity: 100%
 
Big Blue's Avatar
 
Join Date: Oct 2015
Location: Florida - but working out of VA.
Posts: 1,217
Garage
Quote:
Originally Posted by zing View Post
Good point. With 265s, a +10mm offset and 2" lift I'm anticipating having to do the pinch weld to avoid rubbing.
I can tell you that I have the 2 inch RC lift with P265/70R17's TOYO Open Country All Terrains - my rims are 17 x 8 with 5.5 inch back spacing and I don't rub at all and I didn't have to do any other modifications for clearance. Prior to the TOYO's, I also had BF Goodrich 265/70R17's Rugged Terrain T/A's and didn't rub with those tires either.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Last edited by Big Blue; 10-19-2016 at 10:59 AM.
Big Blue is online now  
post #5 of 18 (permalink) Old 10-19-2016, 11:46 AM Thread Starter
Member
Points: 6,847, Level: 54 Points: 6,847, Level: 54 Points: 6,847, Level: 54
Level up: 49% Level up: 49% Level up: 49%
Activity: 0% Activity: 0% Activity: 0%
 
zing's Avatar
 
Join Date: Nov 2007
Location: Seattle, WA
Posts: 39
Garage
Thanks good to know. How close does your tire come to the plastic of the wheel well? I'm guessing it's less than width of a finger?

With 8" rim and 5.5" backspace that mean's you have +25mm offset. From what I read on the forum guys with that setup (with 265/70s or 245/75s) usually don't need to mod anything. Anything 0mm offset or negative will rub. I'm not sure about +10mm offset though, which on an 8" wheel is 4.9" of backspace. One thing that was counter-intuitive for me at first is the smaller the backspace/offset and the further the tire sticks out the more it rubs in the wheel well. That makes sense to me now given the concavity of the wheel well.
muskokacommander likes this.

2006 5.7L Hemi Limited | Steel Blue | Saddle Brown Leather Seats | Rocky Road 2.25" Lift | Ultra Motorsports 175 Wheels (17x8" +10mm offset) | 265/70/R17 Goodyear Duratracs | Yakima Mega Warrior Roof Rack | Curt 2" Hitch | Purchased August 2006
zing is offline  
post #6 of 18 (permalink) Old 10-19-2016, 12:15 PM
Super Moderator
Points: 5,439, Level: 47 Points: 5,439, Level: 47 Points: 5,439, Level: 47
Level up: 45% Level up: 45% Level up: 45%
Activity: 100% Activity: 100% Activity: 100%
 
Big Blue's Avatar
 
Join Date: Oct 2015
Location: Florida - but working out of VA.
Posts: 1,217
Garage
Quote:
Originally Posted by zing View Post
Thanks good to know. How close does your tire come to the plastic of the wheel well? I'm guessing it's less than width of a finger?

With 8" rim and 5.5" backspace that mean's you have +25mm offset. From what I read on the forum guys with that setup (with 265/70s or 245/75s) usually don't need to mod anything. Anything 0mm offset or negative will rub. I'm not sure about +10mm offset though, which on an 8" wheel is 4.9" of backspace. One thing that was counter-intuitive for me at first is the smaller the backspace/offset and the further the tire sticks out the more it rubs in the wheel well. That makes sense to me now given the concavity of the wheel well.
Not sure zing, I'll check a little later on and get back with you.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Big Blue is online now  
post #7 of 18 (permalink) Old 10-19-2016, 09:57 PM
Senior Member
Points: 1,849, Level: 25 Points: 1,849, Level: 25 Points: 1,849, Level: 25
Level up: 49% Level up: 49% Level up: 49%
Activity: 0% Activity: 0% Activity: 0%
 
sporty92's Avatar
 
Join Date: Feb 2015
Posts: 135
Little wider tire is always useful around here for rain, muddy, some gravel and more road imperfections.
sporty92 is offline  
post #8 of 18 (permalink) Old 10-20-2016, 05:55 AM
Super Moderator
Points: 5,439, Level: 47 Points: 5,439, Level: 47 Points: 5,439, Level: 47
Level up: 45% Level up: 45% Level up: 45%
Activity: 100% Activity: 100% Activity: 100%
 
Big Blue's Avatar
 
Join Date: Oct 2015
Location: Florida - but working out of VA.
Posts: 1,217
Garage
Quote:
Originally Posted by sporty92 View Post
Little wider tire is always useful around here for rain, muddy, some gravel and more road imperfections.
Where's here sporty?


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Big Blue is online now  
post #9 of 18 (permalink) Old 10-27-2016, 11:52 PM
Senior Member
Points: 1,849, Level: 25 Points: 1,849, Level: 25 Points: 1,849, Level: 25
Level up: 49% Level up: 49% Level up: 49%
Activity: 0% Activity: 0% Activity: 0%
 
sporty92's Avatar
 
Join Date: Feb 2015
Posts: 135
Quote:
Originally Posted by Big Blue View Post
Where's here sporty?
Here in Georgetown GA.

Last edited by sporty92; 10-27-2016 at 11:55 PM.
sporty92 is offline  
post #10 of 18 (permalink) Old 10-28-2016, 12:16 PM
Senior Member
Points: 6,610, Level: 53 Points: 6,610, Level: 53 Points: 6,610, Level: 53
Level up: 30% Level up: 30% Level up: 30%
Activity: 44% Activity: 44% Activity: 44%
 
Mk153smaw's Avatar
 
Join Date: Dec 2014
Location: Kileen, Tx
Posts: 303
Garage
You literally asked if a wide screw driver is better than a thin screwdriver...

Both types are tires in your question, and it all comes down to both being tires. Tall, thin tires have been known to be good in very sloshy mud stuff. While fatter tires have good float, great on sand which is loose but not sloshy.

265/70/R17 works just fine with all the 2-3" kits, the tread type is where you may or may not see a difference depending on what you want to get out of it.

Good old standard is BFG AT KO muds. These are generally the go to tire for most everything and will not wear very fast, mine survived almost 50,000 on my Cherokee.

Firestone is actually coming back into relevance again for SUV tires and have a decent line up for a good price.

Where do you plan to drive really?


Dave

'06 Hemi Limited 4X4, 6(ish)" lift, 35" General Red Letter, 1.25" spacers, Mopar CAI, RER and mygig lockpick, blue Interior LEDs, stub antenna 3", Callahan Red Brake set, 6.1L SRT8 exaust headers, full custom 3" exhaust from headers back, Fastman 847 ported TB, BBK Fuel Rails, 6.1L injectors, JBA UCAs.
Coming soon: Nitro gear 4:10, 50" LED bar, catch can, SA hidden front winch mount, 4XGuard brush guard, Stage 2 Mopar kit for 5.7L.
Mk153smaw is offline  
Sponsored Links
Advertisement
 
Reply

  Jeep Commander Forums: Jeep Commander Forum > Jeep Commander Discussion > Wheels / Tires

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Jeep Commander Forums: Jeep Commander Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome