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Go Back JeepForum.com > General Technical Discussions > Tires & Wheels > What's better: 10.5 or 12.5 wide tires?

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Unread 06-04-2013, 09:00 PM   #16
xSHAWNx
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Quote:
Originally Posted by RIPNBST View Post
If all you are looking for is stance I'd go with wheel spacers instead. As much as I hate spacers it would be WAYYY cheaper than tires and do the same thing. You can get nice hubcentric spacers for $120 per set of 4.

The narrower tires will be better suited for road driving and do just fine in comparison to the wider tire in anything but sand.
I've checked and the difference in price between 10.5 and 12.5 is hardly much.

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Unread 06-04-2013, 09:02 PM   #17
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Quote:
Originally Posted by mike_dippert View Post
Maybe he meant the steering. Ball joints, TRE's, tie rod...

Orly?
33x12.5 R15 Duratracs are 49lbs.
33x10.5 R15 BFG KM2's are 49lbs.
33x12.5 R15 BFG KM2's are 58lbs.
33x10.5 R15 BFG AT's are 47lbs.
33x12.5 R15 BFG AT's are 53lbs.

IMO, I wouldn't DD a 33" tire that weighs more than 50lbs. Unless your needs warrent an aggressive MT tire.
Under 50lb eh? So looks like the 33x12.5 duratracs fit that bill
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Unread 06-05-2013, 01:50 AM   #18
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Narrower is much better for a daily driver.
Better acceleration, braking, and much better gas mileage.

Much better traction on Winter roads and much less hydroplaning on wet highway.
Off road, narrower is better for some terrains, wider is better for some terrains. For some terrains width doesn't matter. For mud, it depends on the mud.

The only things wider is consistantly better for is extreme sand running and extreme rock crawling. For casual sand running and rock crawling the 10.5 is fine.

10.5 is also a lot easier to fit and less wear and breakage of parts.

Also, IME narrower tires steer better on road.

I say that after having run both wide and narrow 33s on an LJ. The narrower tires were a lot better for me on road, andbetter on Winter roads. Off road, which is better depends on the terrain, but both worked well for me off road.
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Unread 06-05-2013, 08:17 AM   #19
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Quote:
Originally Posted by mike_dippert View Post
Maybe he meant the steering. Ball joints, TRE's, tie rod...

Orly?
33x12.5 R15 Duratracs are 49lbs.
33x10.5 R15 BFG KM2's are 49lbs.
33x12.5 R15 BFG KM2's are 58lbs.
33x10.5 R15 BFG AT's are 47lbs.
33x12.5 R15 BFG AT's are 53lbs.

IMO, I wouldn't DD a 33" tire that weighs more than 50lbs. Unless your needs warrent an aggressive MT tire.
Thanks Mike!

Unit bearing, tie rod, ball joints,bushing, etc. are all effected by excessively large tires. All large diameter tire are made 1/2 ton and up. Originally made for mud competition and bogging enthusiasts. it wasn't until the mid 90's that Jeepers started to adapt them to CJ's & YJ's.

CJ class jeep is engineered to run on 7-15 or 31's
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Unread 06-05-2013, 02:24 PM   #20
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Originally Posted by silvanus View Post

it wasn't until the mid 90's that Jeepers started to adapt them to CJ's & YJ's.
Not sure where you get this info from, but Jeepers have been putting 33s and 35s on CJs at least as far back as the late 70s. My guess would be it started way before that though
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Unread 06-05-2013, 03:10 PM   #21
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I remember in mid to late 70s hearing guys talking of 33s as their vision of large tire gloriousness on Jeeps, Blazers, Bronchos, and other SUVs. I never heard of anything larger back then, but I was in grade school then. So not sure how much I really knew back then.

I just remember growing up dreaming of 33" tires. At that time I had no concept of width. I don't think I even knew there were different widths. I vaguely recall they were all tall and skinny back in the day, but not sure how accurate my memory.

I think it was 33 x 10.5 R15 BFG ATs I dreamed of.

Also, back in the day a 9.5" was on the wide end of normal and considered a flotation tire, a 10.5" was considered a wide flotation tire. I'm not sure if 12.5" existed back then. I think the widest (at that time) was 11.5" on a 35 x 11.5.

I recall 33 x 9.5 R15 and 33 x 10.5 R15 were the big sizes for Jeeps. I recall there was also (on 3/4 ton and 1 ton trucks) 35 x 9.5 R16, 35 x 10.5 R16, and 35 x 11.5 R16 tires. Those are the biggest tires I remember from childhood. I think those were the biggest tires at that time. I don't remember any 12.5" wide tires. I don't think 12.5" wide tires existed yet.

The tall skinny mud tires went through mud very well. I remember that for sure.
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Unread 06-05-2013, 05:21 PM   #22
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Originally Posted by Charley3 View Post
The tall skinny mud tires went through mud very well. I remember that for sure.
I've seen skinny Boggers do well on sand and in the mud too.
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Unread 06-05-2013, 06:37 PM   #23
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Originally Posted by Wheelin98TJ View Post
I've seen skinny Boggers do well on sand and in the mud too.
Edited in Later: I was thinking of classic 40s, 50s, 60s, military when I posted this.

The militaries of the world all seem to prefer tall skinny tires. I'm sure they are setting up primarily for pavement, trails, and mud.

I think they know those terrains well.
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Unread 06-05-2013, 08:09 PM   #24
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Originally Posted by Charley3 View Post
The militaries of the world all seem to prefer tall skinny tires. I'm sure they are setting up primarily for pavement, trails, and mud.

I think they know those terrains well.
You've never been in the military, then.
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Unread 06-06-2013, 06:52 AM   #25
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The military has gone to wider floatation type tires. Most off them suck in the snow but work well everywere else.
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Unread 06-06-2013, 01:42 PM   #26
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Originally Posted by Anticanman View Post
You've never been in the military, then.
No I haven't.

I was thinking classic 40s, 50s, 60s military. Maybe 70s and 80s too? I've only been around older military vehicles.

I don't know about modern military.
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Unread 06-06-2013, 01:45 PM   #27
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The military has gone to wider floatation type tires. Most off them suck in the snow but work well everywere else.
I believe you. When did they do that? For the sands of Middle East?
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Unread 06-07-2013, 07:53 AM   #28
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Mud bogging Jeeps were modified to accept a 35,37, 40" tires, trail Jeeps of that era were still using 31 to 32" tires.
It wasn't until the 90's that Jeep owners started the trend of 35, 37" tires which then called for 3/4 to 1 ton drive train mods to compencate for the larger diameter tire. And the Madness continues to this very day!

When the CJ class Jeep out box is a truly capable & technical trail vehicle !
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Unread 06-07-2013, 08:59 AM   #29
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Late 80s early 90s maybe when they first started using the humvee. Then even the newer heavy trucks. Came out with larger wider tires. with
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Unread 06-07-2013, 03:08 PM   #30
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This thread has gotten so off topic.
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