Notices
Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

PLEASE DO NOT START SHOW & TELL TYPE THREADS IN THIS FORUM

295/70/17 or 305/65/17

Thread Tools
 
Old 06-26-2016 | 10:24 PM
  #1  
hsoj10's Avatar
Thread Starter
JK Newbie
 
Joined: Jun 2014
Posts: 13
Likes: 0
Default 295/70/17 or 305/65/17

I have a 2011 JKU currently with 285/70/17. Planning on getting new tires in 295/70/17 or 305/65/17. Considering the Cooper ST Maxx and the MasterCraft Courser mxt. I can't decide which size I like better. My Jeep has a Teraflex leveling kit ( 2 inch front, 1 inch rear). Would love to hear you guys feedback on which size you think would be best and see any pics you have of either size tire with a leveling kit. Thanks in advance.
Old 06-27-2016 | 05:40 AM
  #2  
WxNerd2015's Avatar
JK Enthusiast
 
Joined: Sep 2015
Posts: 419
Likes: 22
From: Madison Heights, MI
Default

I am an AEV 3.5" Lift (and running light so probably closer to 4") and am running Cooper Discoverer STT Pros (295/70/17) on MB Razor Wheels! For me two door in my eyes, a perfect set up! The 295s measure out to exact 33" for me right now. Here's a few pics, but it looks even better in person!

Click image for larger version

Name:	20160625_123401.jpg
Views:	3498
Size:	4.70 MB
ID:	650782
Click image for larger version

Name:	20160625_123458.jpg
Views:	2716
Size:	3.73 MB
ID:	650783
Click image for larger version

Name:	20160625_123407.jpg
Views:	3320
Size:	3.69 MB
ID:	650784
Old 06-27-2016 | 05:57 AM
  #3  
karls10jk's Avatar
Super Moderator
FJOTM Winner
 
Joined: Dec 2010
Posts: 5,642
Likes: 484
From: Knoxville
Default

The 295 is going to be a more widely available size if something should happen and you need a spare (or more) pronto.
Old 06-27-2016 | 06:17 AM
  #4  
hsoj10's Avatar
Thread Starter
JK Newbie
 
Joined: Jun 2014
Posts: 13
Likes: 0
Default

Originally Posted by karls10jk
The 295 is going to be a more widely available size if something should happen and you need a spare (or more) pronto.
I like the added height too. Just wondered if the extra width of the 305 would look better.
Old 06-27-2016 | 06:19 AM
  #5  
hsoj10's Avatar
Thread Starter
JK Newbie
 
Joined: Jun 2014
Posts: 13
Likes: 0
Default

That looks good! Thanks for the pics.

Originally Posted by WxNerd2015
I am an AEV 3.5" Lift (and running light so probably closer to 4") and am running Cooper Discoverer STT Pros (295/70/17) on MB Razor Wheels! For me two door in my eyes, a perfect set up! The 295s measure out to exact 33" for me right now. Here's a few pics, but it looks even better in person! <img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=650782"/> <img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=650783"/> <img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=650784"/>
Old 06-27-2016 | 07:39 AM
  #6  
WxNerd2015's Avatar
JK Enthusiast
 
Joined: Sep 2015
Posts: 419
Likes: 22
From: Madison Heights, MI
Default

Originally Posted by hsoj10
That looks good! Thanks for the pics.
Yeah, np! Happy to help!
Old 07-01-2016 | 08:39 AM
  #7  
hsoj10's Avatar
Thread Starter
JK Newbie
 
Joined: Jun 2014
Posts: 13
Likes: 0
Default

@WxNerd2015 can you tell me what the mounted measurements are of your tires. Like width lug to lug and the mounted height? I would appreciate it! Thanks in advance.
Old 07-05-2016 | 05:49 AM
  #8  
WxNerd2015's Avatar
JK Enthusiast
 
Joined: Sep 2015
Posts: 419
Likes: 22
From: Madison Heights, MI
Default

Originally Posted by hsoj10
@WxNerd2015 can you tell me what the mounted measurements are of your tires. Like width lug to lug and the mounted height? I would appreciate it! Thanks in advance.
Hey, happy to provide those numbers! Sorry for the longer response time! Been busy! So first, I had had my tires set at 38 psi cold (I know, a bit high, but the ride really is pretty smooth there, but I will most likely work it down from that until I find a good psi, but that is a slow process and we have had some big temperature swings, so that affects the psi as well and makes it a bit harder to play with), but when these measurements were taken, the psi in the tires was at 40 as they were warmer:

Click image for larger version

Name:	20160704_134428.jpg
Views:	1349
Size:	1.29 MB
ID:	651546

So, first measurement, from the ground to the top of the sidewall (where the outside lug lines up) measured about 32.25":

Click image for larger version

Name:	20160704_133956.jpg
Views:	947
Size:	2.52 MB
ID:	651544

Then, I took a board from the center of the tread out to the sidewall at the highest point of the tire, and that measured almost exactly at 32.75" (And yes, the board looks like it is going on an angle, but it is just the illusion that the camera creates at this angle with the curved tire and the wheel well liner...I checked with a level that it was straight out):

Click image for larger version

Name:	20160704_134323.jpg
Views:	980
Size:	2.19 MB
ID:	651545

And lastly, The lug to lug distance on the tread measured approximately 10.5", but the overall with of the tire at the sidewall mounted is about 11.5":

Click image for larger version

Name:	20160704_133917.jpg
Views:	1067
Size:	1.50 MB
ID:	651543

If you use the discount tire calculator for this size tire, it calculates at 11.6" width, 33.26" height, so I am actually not too far from this, but if I drop the psi a bit more, I may drop in size a bit more. But right now at 40 psi (38 psi cold), my measurements aren't too far from from advertised.

Hope this helps! Let me know if you want more pics, or different measurements, or if something seems wrong and I can go back and measure again!
Old 07-06-2016 | 04:10 AM
  #9  
d. gage's Avatar
JK Enthusiast
 
Joined: Jun 2007
Posts: 343
Likes: 0
Default

Do you guys think a 295 would fit on a stock suspension JKR? I like this size and I'm not ready to make the jump to 35s for a few years. I know I'll need spacers.
Old 07-06-2016 | 05:34 AM
  #10  
WxNerd2015's Avatar
JK Enthusiast
 
Joined: Sep 2015
Posts: 419
Likes: 22
From: Madison Heights, MI
Default

Originally Posted by d. gage
Do you guys think a 295 would fit on a stock suspension JKR? I like this size and I'm not ready to make the jump to 35s for a few years. I know I'll need spacers.
Height-wise, I believe that it will fit, as 285/70s fit on stock setups and these are not too much bigger than that, however, you may get some rubbing depending on your driving when you get full lock on steering or if you are flexing off roading. Wheel spacers would help with the turning aspect, however, you probably won't have too much clearance to the fenders. The max size that is regularly accepted to fit on the stock suspension (with some exceptions as others have made modifications to accept larger tires) is a 33 inch tire, which a 295/70/17 measures out roughly to a 33x11.6. So you will definitely need wheel spacers as you said, and just watch the flexing off road as the tires will be extremely likely to hit the edge of the fender and damage it if you aren't careful.

Here is a link to a good site for your questions, as well as a pic of 295/70s on a stock suspension and wheel set up on a JKU Sport for an idea:
http://myjeepwranglerjk.blogspot.com...-stock-jk.html

And here is the pic from the site as well (This is not my Jeep and take now credit to the photo, just see the link about for reference and citation):
Click image for larger version

Name:	295 70 17s on stock wheels with 1.5 inch Spidertrax. No lift and no rubbing.jpg
Views:	2845
Size:	57.0 KB
ID:	651704



All times are GMT -8. The time now is 08:23 PM.