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Old 05-09-2014, 02:08 PM   #1
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BFG mud terrain KM2

Can I run these tires in 285/75/17 without issues (rubbing) if I don't have a lift? I've ordered the AEV pintlers wheels and need to decide on tires. Want to do the AEV 2.5" suspension lift but the budget won't allow right now. If anyone has this setup I'd love to see pics.

Thanks

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Old 05-09-2014, 02:17 PM   #2
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This is with a 2.5" lift... Even if it fits without a lift, I think it would look bad; very stuffed.

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Old 05-09-2014, 02:29 PM   #3
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You probably know this, but on Rubis and Willys Wheelers the KM comes standard in 255/75-17. The same tire in 285/75 should only be 1.47" taller, which means only 3/4" taller from centerline to top. Hard to imagine that looking too tall in those giant wheelwell openings. and as for being 30mm wider (1.20"), that would just fill out the wells nicely.

Here's mine totally stock:

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Old 05-09-2014, 02:48 PM   #4
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Thanks for the info and pics. Will likely need to see if my tire place will mount a couple of sizes for me so we can test the fit and look.
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Old 05-09-2014, 04:03 PM   #5
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Originally Posted by NoGaBiker View Post
You probably know this, but on Rubis and Willys Wheelers the KM comes standard in 255/75-17. The same tire in 285/75 should only be 1.47" taller, which means only 3/4" taller from centerline to top. Hard to imagine that looking too tall in those giant wheelwell openings. and as for being 30mm wider (1.20"), that would just fill out the wells nicely.

Here's mine totally stock:
Good points... The KM2 is much more aggressive than the KM, with much bigger lugs... That's why they use KM's from the factory--more user-friendly.
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Old 05-09-2014, 04:33 PM   #6
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Good points... The KM2 is much more aggressive than the KM, with much bigger lugs... That's why they use KM's from the factory--more user-friendly.
Yeah, I don't know the actual measurement difference between a KM and a KM2, but visually the KM2 looks bigger because of the deeper knobbies.

I think (total WAG here) that a 285/75 KM would look great, and a 285/75 KM2 might look like you needed a lift, as The Chief points out.
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Old 05-09-2014, 04:45 PM   #7
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Looks wise it will look better with a lift of 2.5, but until I can do that I want to know if the285/75 will rub and cause me issues.
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Old 05-09-2014, 05:20 PM   #8
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Originally Posted by NoGaBiker View Post
You probably know this, but on Rubis and Willys Wheelers the KM comes standard in 255/75-17. The same tire in 285/75 should only be 1.47" taller, which means only 3/4" taller from centerline to top. Hard to imagine that looking too tall in those giant wheelwell openings. and as for being 30mm wider (1.20"), that would just fill out the wells nicely.

Here's mine totally stock:
Nice. Are you going to keep the KM's or get something else and/or a different size?
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Old 05-09-2014, 10:46 PM   #9
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Nice. Are you going to keep the KM's or get something else and/or a different size?
Here's my take on the 255 KMs on the Willys: I LOVE the look. There are two reasons I bought the Willys: (1) When I built a Sport S to my specification, it actually cost only $400 less than the Willys, and the Willys gave me the black Rubi wheels, rails, and tires for that $400. And (2) I think the (by today's standards) thin knobby KMs on solid black wheels really recall the older military jeeps more than anything else about the Willys Wheeler. Those Jeeps always had a lot more fender than they did tire, and today's setups always have more tire than they do fender. The WW gives a nod to the old look, without giving up anything in the realm of performance.

The 16" basic Sport has the skinny tire look too, but those are obviously street tires and don't evoke the old WWII Jeeps.

So I think I'll be sticking with this size.
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Old 05-09-2014, 10:57 PM   #10
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Here's my take on the 255 KMs on the Willys: I LOVE the look. There are two reasons I bought the Willys: (1) When I built a Sport S to my specification, it actually cost only $400 less than the Willys, and the Willys gave me the black Rubi wheels, rails, and tires for that $400. And (2) I think the (by today's standards) thin knobby KMs on solid black wheels really recall the older military jeeps more than anything else about the Willys Wheeler. Those Jeeps always had a lot more fender than they did tire, and today's setups always have more tire than they do fender. The WW gives a nod to the old look, without giving up anything in the realm of performance.

The 16" basic Sport has the skinny tire look too, but those are obviously street tires and don't evoke the old WWII Jeeps.

So I think I'll be sticking with this size.
I totally agree. Those KM's do give it that knobby look like the old school Army Jeeps. I'm kinda torn because I've read mixed reviews on the KM. Some think they're great and handle great, others don't. My salesman likes his. Where I live, I need something great for wet roads, ice and snow so I'm leaning towards switching the KM's out for siped Duratracs or Silent Armors. But it all depends on what I can get for the KM's. When I finally take delivery, though, I may want to keep them after seeing them first hand. And those gloss black wheels are awesome. I don't want to go the spacer route.
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Old 05-10-2014, 02:01 AM   #11
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I'm on my third set of KM2s and they are very good all around tire except on icy roads due to the lack of sipling. They wear slightly faster than some comparable tires. I am rolling mine at the factory recommended 44 PSI for fuel economy and the ride is surprisingly good judged by my wife and other passengers.
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Old 05-10-2014, 06:15 AM   #12
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I'm on my third set of KM2s and they are very good all around tire except on icy roads due to the lack of sipling. They wear slightly faster than some comparable tires. I am rolling mine at the factory recommended 44 PSI for fuel economy and the ride is surprisingly good judged by my wife and other passengers.
what size km2s are you running?
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Old 05-11-2014, 09:19 AM   #13
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I'm running 35" KM2s just under 30 psi and I'm happy with ride and wear. I'm running them on factory width rims with spacers, so I wanted them a bit under inflated so the contact patch runs a bit flatter and doesnt' wear the centers out.
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Old 05-11-2014, 09:29 AM   #14
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I'm running 35" KM2s just under 30 psi and I'm happy with ride and wear. I'm running them on factory width rims with spacers, so I wanted them a bit under inflated so the contact patch runs a bit flatter and doesnt' wear the centers out.
I have the 34's with the factory Moab wheels, 1.5" spacers and a 2,1/2" lift, I was wondering if I'd be able to ditch the wheel spacers.
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Old 05-11-2014, 11:34 AM   #15
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I have the 34's with the factory Moab wheels, 1.5" spacers and a 2,1/2" lift, I was wondering if I'd be able to ditch the wheel spacers.
I'm curious too. The LT285/75r17 is listed at 33.9 X 11.3. Very close to fitting at full wheel lock with proper control arms, trimmed air damn, and lift.
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Old 05-11-2014, 12:55 PM   #16
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I'm curious too. The LT285/75r17 is listed at 33.9 X 11.3. Very close to fitting at full wheel lock with proper control arms, trimmed air damn, and lift.
I have these exact tires on a 2.5" lift...Didn't trim anything, and I have plenty of room to spare at full wheel lock.
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Old 05-11-2014, 01:02 PM   #17
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This is with a 2.5" lift... Even if it fits without a lift, I think it would look bad; very stuffed.
Nice jeep, nice grey wheels, what wheels are those.
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Old 05-11-2014, 01:13 PM   #18
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Nice jeep, nice grey wheels, what wheels are those.
Thank you. I appreciate that... Those are AEV Pintlers... They are factory offset, so no spacers needed...
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Old 05-11-2014, 01:18 PM   #19
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I was curious about those tires on factory wheels.
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Old 05-11-2014, 01:37 PM   #20
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Thank you. I appreciate that... Those are AEV Pintlers... They are factory offset, so no spacers needed...
Thanks, I am buying those for my anvil, if I sell the rubicon tires and wheels.
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Old 05-11-2014, 01:46 PM   #21
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I have the 34's with the factory Moab wheels, 1.5" spacers and a 2,1/2" lift, I was wondering if I'd be able to ditch the wheel spacers.
no, or at least I was not. I have a 2014 rubicon unlimited and 285/75-17 (34's) on factory rims and without spacers I rubbed on the sway bar in front and was very close to the lower rear driver's side control arm. this is with a 2" lift.
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Old 05-11-2014, 01:48 PM   #22
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Thank you. I appreciate that... Those are AEV Pintlers... They are factory offset, so no spacers needed...
they have 5.2" backspacing compared to stock 6.25" so that is why you can run without the spacers.
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Old 05-11-2014, 02:02 PM   #23
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no, or at least I was not. I have a 2014 rubicon unlimited and 285/75-17 (34's) on factory rims and without spacers I rubbed on the sway bar in front and was very close to the lower rear driver's side control arm. this is with a 2" lift.
The BFGs are listed as slightly smaller than what you have, but not much.
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Old 05-11-2014, 02:12 PM   #24
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Thanks, I am buying those for my anvil, if I sell the rubicon tires and wheels.
You can get the silver center caps if you like...probably better with the anvil...

The rims also come in silver or black...
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Old 05-11-2014, 02:14 PM   #25
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they have 5.2" backspacing compared to stock 6.25" so that is why you can run without the spacers.
I didn't know that... I was told they were the same offset as the Moab wheels...
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Old 05-11-2014, 03:59 PM   #26
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what size km2s are you running?
The stock 10A 32s for now.
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Old 05-11-2014, 04:01 PM   #27
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What does it cost to get tires siped, anybody know?
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Old 05-11-2014, 04:10 PM   #28
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What does it cost to get tires siped, anybody know?
Not sure, but KM2's come siped...
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Old 05-11-2014, 04:26 PM   #29
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Sorry, I meant the KM's lol. I thought maybe if I could get mine siped then I wouldn't need to swap them.
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Old 05-11-2014, 04:29 PM   #30
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Sorry, I meant the KM's lol. I thought maybe if I could get mine siped then I wouldn't need to swap them.
every shop charges differently. local shop used to charge $20 but they did an incredible job of siping. I would call your local tire shops. One thing is siping is not great if you do a lot of gravel roads as gravel tends to get in the sipes and it can chunk badly on rocks as well. Siping that is done by shops tends to be much different then factory siping.

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