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Mammoth Boulder Black Wheel - 17x9 and BFG KM2 Tire 265/70-17 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

Market Price $1,802.99 You Save 7% ($118.00)
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$1,684.99

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  • Item J102167
  • MPN# J102167-A

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Set of 4 Set of 5
  • Add Road Hazard Protection

  • Add TPMS Sensor

Mount & Balance - $60.00-75.00
Total Price with Options:
Ship to: ASHBURN - 20146
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    Features, Video & Details

    • (4) 17x9 Matte Black Mammoth 4x4 Boulder
    • (4) LT265/70R17 BF Goodrich Mud-Terrain T/A KM2
    • Mounting & Balancing Available
    • Free Nitrogen Fill
    • Optional 5th Wheel Available
    • Fits 2007-2018 JK and JL Jeep Wranglers
    • Road Hazard Protection Plan Available

    Review & Installation Video

    Review & Install Video

    I'm Ryan from ExtremeTerrain.com and this is my review of the Mammoth Boulder Wheel and Tire Kit, fitting all 1987 to 2016 Wranglers. This kit is available in both 16 and 17 inch wheels and in black, silver and charcoal finishes. Wheel and tire kits are for those of you looking to upgrade the wheels and tires on your JK and you want to do them at the same time. Generally going to a larger tire will mean a new wheel because you'll need a different width, diameter or backspacing, so doing them at the same time in a wheel and tire kit makes things really easy. So if you're looking to upgrade to larger wheels and tires on your Jeep, or if you're just looking to replace the worn out rubber you already have, I definitely recommend taking a look at the Mammoth wheel and tire kits. What I really like about the wheel and tire kits is that everything comes to you mounted, balanced and ready to bolt onto your Jeep all without you having to take a trip to the tire store. So let's talk about this wheel. The Mammoth Boulder is a five spoke aluminum wheel. It looks really nice and it's available in a couple of different sizes. You can get this in both 16 X 8 or 17 X 9 inch, depending on what size tires you want to run on your Jeep. And the wheel is available in three different finishes. You can get black, charcoal or silver, so there's a finish that will look great with your Jeep no matter what color it is. Running a slightly smaller wheel has some benefits, especially for you guys who take your Jeep off road. The smaller 16 inch wheel will have more sidewall than the larger 17 inch, which is great for gripping rocks and different obstacles off road, and the narrower 8 inch wheel will give you natural sidewall pressure so when you air down to a lower PSI when off road, you don't risk losing a beat. But if you like the look of the 17 inch wheel, those are definitely available as well. Maybe more important than the diameter and the width of the wheel is the backspacing, especially for a Jeep. When you are running a larger and wider wheel and tire, there's always the chance that the tire is going to contact either the frame or the control arm when you turn the steering wheel from lock to lock. Having a smaller amount of backspacing will push the wheel and tire package away from the center line of the Jeep giving you the clearance that you need. These Boulder wheels have four and a half inches of backspacing. That gives you enough clearance to run most normal size tires that you'd want to put on your JK. Aside from dimensions, Mammoth made these wheels hub centric, which means that the weight of the vehicle is supported by the center hub and not by the lugs and they're a five by five lug pattern so they'll bolt directly onto your Jeep without the need for adapters. Once you decide what wheel you like, you have a few different brand, styles and size tires to choose from. After you pick that package, you have a few more decisions to make. You will decide whether you want four or a full set of five wheels and tires including the spare, whether you want TPMS sensors in the wheels and tires which will retain all of the factory TPMS system operation, and you'll decide whether you want the white lettering in the tires in or out. No matter how you decide to customize your kit, the tires will be filled with nitrogen which gives you more consistent tire pressure reading regardless of temperature and doesn't bleed through the rubber as much which means you won't have to refill them as often. And the best part about the wheel and tire kits is that they're mounted and balanced for free. So they get to your house, you pull them out of the box and bolt them on the Jeep, all saving you a trip to the mount and balance shop. Because these ship completely assembled, installation could not be any easier. The first thing you'll do is break loose your lug nuts, then jack up the Jeep making sure that you support it with a jack stand for safety. After that, you can remove the lug nuts and get the old wheels and tires off and put the new ones in place. You'll want to use a torque wrench when tightening the new lug nuts and tighten them to factory torque spec to make sure that you don't stretch the threads on the lugs and causing damage. The whole installation should take about an hour and you won't need any specialty tools, just a jack, a jack stand and the proper size socket wrench. So, if you're looking for a new set of wheels for your Jeep, I definitely recommend taking a look at the Mammoth Boulder wheel. They're a really strong, good looking wheel that come in a variety of sizes and finishes, and if you're also looking for new tires, a wheel and tire package is definitely the way to go. You might be able to get tires from here and wheels from here and take them all to a mount and balance shop and save a few dollars, but for the convenience and the customization of a wheel and tire kit, I think you get a ton of value for the price you pay. So that's my review of the Mammoth Boulder Wheel and Tire Kit, fitting all 1987 to 2016 Wranglers that you can find right here at ExtremeTerrain.com.

    Easy "One Click" Shopping. This wheel and tire combo kit features (4)17x9 Matte Black Mammoth 4x4 Boulder wheels and (4) BF Goodrich Mud-Terrain T/A KM2 LT265/70R17 tires that have been put together into an easy "one click" to buy combo kit. An optional (5) wheel and tire kit is also available, see drop down option above.

    Recommended 5th Wheel Upgrade. When increasing the rolling diameter of your Jeep Wranglers tires it is recommended to upgrade your spare tire at the same time as the factory spare may be too small to be used. And besides a big meaty spare looks intimidating on the back of your Wrangler.

    Matte Black Mammoth 4x4 Boulder. Upgrade your Jeep with the Mammoth 4x4 Boulder Black Wheel from ExtremeTerrain. This Mammoth 4x4 wheel features classic Wrangler styling with an aggressive spin made to take on the trail. Specific to your Wrangler, it features a hub centric design to provide the reliability you need on the highway or off the paved path for a bold look no matter where your tire tracks end. Completed in a durable matte black powder coat for a rugged off road appearance, this Mammoth 4x4 wheel is the perfect addition for the Jeeper looking for a custom styled wheel without a daunting price tag.  It comes complete with a matching Mammoth 4x4 center cap for complete aggressive styling whether you're on the trail or cruising the highway.

    LT265/70R17 BF Goodrich Mud-Terrain T/A KM2. BF Goodrich Mud Terrain T/A KM2 is the end all in off road capability. You'll never doubt traction on the trail with this tire's aggressive side wall lugs and self cleaning dual compound tread design. Your Wrangler will conquer climbs and pits and any obstacle with BF Goodrich's linear flex zone which allows this tire to conform to obstacles and grab the trail during aired-down crawling and driving. TriGard 3-ply construction and a chip resistant compound protect this tire from any trail hazards you run into, including cuts from rocks or boulders.

    How do I keep my TPMS feature? The Tire Pressure Monitoring System is a safety feature on all 2007+ Jeep Wranglers that alerts you when your tire pressure drops to an unsafe limit. Aftermarket wheels do not have TPMS sensors. However, if you select 'Add TPMS Sensor Kit' for your specific year from the options listed above, we'll install the sensors in your new wheels for free!

    Application. This 17x9 Matte Black Mammoth 4x4 Boulder wheel and LT265/70R17 BF Goodrich Mud-Terrain T/A KM2 Fits 2007-2018 JK and JL Jeep Wranglers.

    Fitment: 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Details

    Mounting & Balancing ExtremeTerrain offers professional mounting and balancing on all wheels and tires when purchased together on the same order for an additional fee. This will allow you to swap out your old wheels for your new set when they arrive.

    • State of the Art On-Site Tire Facility
    • Scratch Free Mounting Process
    • Environmentally Friendly, Lead Free Wheel Weights
    • Free Installation of TPMS Sensors When Purchased on the Same Order (2007+ Wranglers)
    • 1 to 2 Business Day Turn Around Time on Most Orders

    What is TPMS?The Tire Pressure Monitoring System (TPMS for short) is a factory installed safety feature on all 2007 and newer Jeep Wranglers that alerts you when your tire pressure drops to an unsafe limit.

    How do I keep my TPMS feature?Aftermarket wheels do not come with TPMS sensors. However, if you select 'Add TPMS Sensor’ and your specific year range from the options listed above, we'll install the TPMS Sensors in your new wheels free of charge!

    • Save Money! We sell TPMS Sensors and Sensor Kits at a fraction of the price of dealerships
    • Free Installation of TPMS Sensors When Purchased on the Same Wheel and Tire Order
    • Stay Safe - Keeps your Factory Safety Feature Intact
    • No More Warning Light - Lose the annoying dash light that appears when your sensors are missing

    For more Information, check out TPMS Sensor Kits in detail.

    What's in the Box
    • (4) Wheels
    • (4) Center Caps
    • (4) Tires
    Installation Info
    Tech Specs

    Wheel Specifications:

    Manufacturer: Mammoth 4x4 Style: Boulder
    Size: 17x9 Finish: Matte Black
    Backspacing: 4.7" (121mm) Offset: -6mm (-0.2")
    Load Capacity: 1521 lbs (690 kg) Bolt Pattern: 5x5"
    Weight: 23.0 lbs Material: Aluminum

    Tire Specifications:

    Manufacturer: BF Goodrich Style: Mud-Terrain T/A KM2
    Size: LT265/70R17 / 32 in Tread Type: Mud Terrain
    Sidewall Color: Optional Black or White Max Load: 3195 lbs
    Weight: 55.9 lbs Tread Depth in 32nds: 18
    Will it fit my Wrangler?
    • JK Rubicon 2 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • JK Rubicon 4 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • JK Wrangler 2 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • JK Wrangler 4 Door - 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18
    • JL Rubicon 2 Door - 18
    • JL Rubicon 4 Door - 18
    • JL Wrangler 2 Door - 18
    • JL Wrangler 4 Door - 18

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    Questions & Answers (23)

    5 Top Rated Questions

    Will P285/70/R17 fit without rubbing anywhere at full flex with no lift or spacers?

    • Thank you for your question! A 285/70R17 is about 32.7" tall and about 11.2" wide. With this wheel you will have enough backspacing that you will not need spacers. At full flex with no lift I would not recommend an almost equivalent 33" tire because there will be interference with stock fenders.

    Helpful (2)

    Will the stock JK lugnuts work on this wheel?

    • Hello, yes you can use the stock JK lug nuts on these wheels.

    Helpful (2)

    would these fit a 2018 JL unlimited sport? 17X9 wheel thinking about 33" tires. what do you suggest??

    • Yes! These Mammoth Boulder Black Wheel will fit your 2018 JL just fine and should have no problem with 33" tires at stock ride height.

    Helpful (1)

    What is the finish on these wheels? Matt, Flat, or Satin? I am looking at these for a flat black look.

    Do I need to run spacers for these rims with a 3 in lift on an 09 jkur.?

    • These Mammoth Boulder Black Wheel will fit well with most tire sizes as long as the lift kit allows room for a taller tire. If the tire you plan to use is particularly wide, then you could potentially run into some rubbing depending on the exact tire size.

    Helpful (0)
    Post Your Question
    10 More Questions
    I am looking to get these in 17x9 to put 35 x 12.5 KO2's on my 2017 2door. I have the mopar 2" lift (Which nets 3" of lift over stock) will I have any clearance issues, or rubbing the frame/components on or off road with these wheels and tire combo? 1 answer
    I believe these should be usable on the WJ Grand Cherokee, correct? The WJ is a 5x5 bolt pattern with a 71.5mm center bore, which I think is the same as the JK. 1 answer
    Hello. I am thinking of purchasing these wheels and new A/T tires for my stock 2010 Wrangler Sport (2-door). What is the largest recommended tire size that would fit without any rubbing considering I have all OEM parts (e.g., bumpers), and without adding a lift kit or other add-ons? And which tire do you recommend? Thanks, 1 answer
    Lugnuts do you recommend or require any special kind of lugnut and do you sell them? 1 answer
    Lugnuts do you recommend or require any special kind of lugnu?t and do you sell them? 1 answer
    Can you tell me the weight for each wheel. 1 answer
    Will this wheel work with 295/70R17 tire without a lift? 1 answer
    I have 275/70/17 BFG KO2s currently and they recommend up to a wheel width of 8.5 inches...will they be ok on these 9 inch wide wheels? 1 answer
    Will 285 70 17 tires fit this wheel without a lift? 1 answer
    Is the max load specified correctly? Seems a little too low, please advise. Thank you. Art 2 answers

    Customer Reviews (85) Write a Review

    Overall Rating 4.9

    out of 5 stars

    • Finish 4.85359 4.9
    • Appearance 4.95795 5.0
    • Quality 4.855607 4.9
    • Bang For Your Buck 4.893913 4.9



    • 5/5

      August 02, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Awesome wheels!

      I love the look of these wheels! The fit and finish is excellent. The center cap does have a white mammoth logo and lug nuts are not included but you are able to use your stock lug nuts.

      JordanM

      Year: 2015Submodel: Rubicon

      Helpful (1)

    • 5/5

      July 20, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Looks great

      I've gotten a lot of compliments on these! Totally worth it

      EdgarN

      Year: 2015Submodel: Wrangler

      Helpful (1)

    • 4/5

      July 13, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Excellent Wheels

      Mammoth should create an option to have completely black center caps without their logo in white.

      DavidA

      Year: 2018Submodel: Rubicon

      Helpful (3)

    • 5/5

      July 05, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Mammoth Wheels

      Look great! No complaints. Highly recommend. Easy install

      BrettE

      Year: 2017Submodel: Wrangler

      Helpful (2)

    • 5/5

      July 05, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Look and performs amazing.

      Looks awesome on the jeep and really transforms the look completely. Also adds the necessary offset for larger tires. Price may seem cheap, but a great product.

      Gerard

      Year: 2012Submodel: Wrangler

      Helpful (2)

    • 5/5

      July 04, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      love these!

      Exactly what I wanted - understated and unique because of it. Great value too!

      MichaelA

      Year: 2015Submodel: Wrangler

      Helpful (2)

    • 5/5

      June 25, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Love the Look!

      I am totally satisfied with the look of my newly purchased rims! They look amazing and so is the service provided by Extreme Terrain! Very happy customer all around ♥️

      DawnB

      Year: 2018Submodel: Wrangler

      Helpful (2)

    • 5/5

      June 01, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Mammoth wheels

      Wheels look great seem like a good quality wrapped in some BFGoodrich tires km2 35"

      NickW

      Year: 2016Submodel: Wrangler

      Helpful (2)

    • 5/5

      May 13, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      wheels

      Great wheels for my wife's wrangler, really updated an 8 year old ride.

      SteveJ

      Year: 2010Submodel: Wrangler

      Helpful (3)

    • 5/5

      May 01, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Awesome rims

      They arrived on time and looked great. They look even better on my jeep very pleased with this purchase.

      PatrickD

      Year: 2010Submodel: Rubicon

      Helpful (2)

    • 5/5

      April 30, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Nice looking wheels

      The pictures tell the story. They were well package. No scratches.

      GeorgeP

      Year: 2015Submodel: Wrangler

      Helpful (2)

    • 5/5

      April 15, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      WOW

      These things are far more than I expected, the fit, the finish, and a complete personality overhaul for my 2017 Chief Blue JK. Well packaged and delivered ahead of schedule. I teamed the wheels up with the Falken Wildpeak 285/70/17s and I could not be happier. Thanx much ET!

      RandalD

      Year: 2017Submodel: Wrangler

      Helpful (2)

    • 5/5

      April 12, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Great product!

      I’ve had these wheels on my Jeep for awhile and have been impressed with them. I rarely buy Chinese made parts but these Mammoths have stood up to many different terrains and air pressures. Amazing product for the price.

      Gunner

      Year: 2016Submodel: Wrangler

      Helpful (1)

    • 5/5

      April 05, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      LOVE!

      Love these on my jeep! They look amazing. Product got delivered to me really quick; within two days. Can't complain.

      JeepGirl

      Year: 2018Submodel: Wrangler

      Helpful (2)

    • 5/5

      April 03, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 and Mickey Thompson Baja MTZ 305/65-17 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      They are great!

      They do really well in the rain and snow. The road noise isn't too bad. Especially compared to other tires. They look great. I get a ton of compliments. I would recommend them.

      Moses

      Year: 2012Submodel: Wrangler

      Helpful (1)

    • 5/5

      March 30, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Nice Light Wheels

      For the price, these wheels are nice. I wanted a light alloy for my set up, and these worked out great

      17xJKU

      Year: 2017Submodel: Wrangler

      Helpful (2)

    • 5/5

      March 24, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Simple but Classy

      Great product, it’s design is simple but it adds class to your rig. Matched the OEM holes and made for easy installation.

      AdriR

      Year: 2017Submodel: Rubicon

      Helpful (2)

    • 5/5

      March 24, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Just what I wanted

      I wanted black wheels but nothing fancy. They are simple and exactly what I was looking for. I love them and have already gotten a lot of comments/compliments on them.

      Aly

      Year: 2013Submodel: Wrangler

      Helpful (1)

    • 4/5

      March 13, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Love the wheels

      Great wheels. Two of mine had little scratches on them and was it given store credit so be careful before you install them.

      JohnP

      Year: 2012Submodel: Wrangler

      Helpful (2)

    • 5/5

      February 24, 2018

      Review from Mammoth Boulder Black Wheel - 17x9 (07-18 Jeep Wrangler JK; 2018 Jeep Wrangler JL)

      Two Thumbs Up

      The wheels are perfect. Offset is more aggressive than I imagined but it was perfect!

      JacobH

      Year: 2009Submodel: Wrangler

      Helpful (2)

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