Meet the Rock Monster: FJ Cruiser Gets Beadlocked

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Meet the Rock Monster: FJ Cruiser Gets Beadlocked

12 Responses

  1. Great looking wheels!
    Can you confirm this are
    33/12.50 x 17 ? I love the tires, just order a set of 35/12.50 x 17

    Michael Montgomery April 8, 2012 at 2:23 pm #
  2. Thanks for the feedback, Michael. Yes, the Toyota Rock Monster wheels are a 17-inch rim and I’m currently running Interco’s TrXus Mud Terrain tires in a size of 33×12.5, so you should be fine.

    Expeditionr April 8, 2012 at 3:27 pm #
  3. Very nice job on all of your research; well-balanced and informational.

    My lovely bride and I are planning another Denali trip from our native Florida and I’m getting some excellent ideas from all your work here. Thanks. As a researcher myself, I appreciate the time it took to gather and discriminate valid from unreliable info. Additionally, your writing style is easy to read and kept my ADHD at bay 😉

    Questions on your choice of wheels:

    1. The Hutchinson Rock Monster looks like the model I’ll choose. However, remaining with the 17 OEM sizing, or moving down to a more trail-friendly 16 rim will need to be decided. What technical points were considered for staying with the 17 on your FJ?
    2. Did you find an appreciable price-point variance during your vendor search?

    Curiously, I’m also currently running the same Nitto’s you replaced (on our previous cross-country to Denali) and have nothing but praise for them. They are wonderful for what they are designed for and performed superbly during our Imogene ascent – but as you reported, as a AT tire the mud/snow/slushy performance can be improved. Snaps to you, I’m now looking seriously into the TrXus MT’s for all the same reasons for this trek we’ll be crossing during the winter months and no doubt will encounter quite a bit of the liquid stuff.

    As I’ve only recently discovered your site, I’ve still some reading to do. Looking forward to more good info. Keep-up the great work here!

    Michael June 4, 2013 at 4:04 am #
  4. Michael,

    The Hutchinson Rock Monster is only manufactured in a 17″ rim size, so there really wasn’t a choice in that area. As far as price differences go, the Rock Monster wheel is priced considerably higher than most standard wheels, I’ll agree. However, you really need to compare apples to apples in this case. When you compare the Rock Monster to a similar Raceline product for instance, the price difference is not all that noticeable. A good beadlock wheel is going to be more expensive, regardless of the brand you choose. And a dual beadlock system that works as well as the Rock Monster doesn’t come cheap. But when you consider all the benefits you gain when running the Rock Monster, the price becomes much more tolerable. Lastly, if you’re curious, I did a complete review of Interco’s TrXus Mud Terrain tire here. You might find the long-term results helpful in your tire research. Thanks again for your comment and good luck on your Denali trip!

    Expeditionr June 4, 2013 at 8:05 am #
  5. Also, was there a significant impact on fuel consumption after the RM’s and TrX’s compared to stock rims and Nitto’s?

    Michael June 6, 2013 at 12:07 pm #
  6. Michael,

    In my case, I already had a significant amount of heavy (weight-wise) modifications completed before adding the Rock Monster / TrXus combo, so the difference in mileage wasn’t particularly noticeable. I suspect you will probably lose 1-2 mpg if you’re upgrading from a completely stock setup. But if you’re already running larger aftermarket tires and wheels, the difference will most likely be negligible.

    Expeditionr June 6, 2013 at 1:18 pm #
  7. I was wondering if you used these on a daily driver? As wheels would be the first aftermarket purchase for my FJ that will be my dd, would it be reasonable just to go straight to the rockmaster and not beat around the bush?

    Sparkplug November 1, 2013 at 8:27 am #
  8. Sparkplug,

    Indeed I do use these wheels on the FJ Cruiser as a daily driver. As indicated in the review, the Rock Monster wheel is quite heavy and as such it will have an impact on your daily driving mileage. But other than a slight reduction in mileage there’s no reason they cannot be used for every day street use. Running these wheels daily saves me from owning two separate sets of wheels and when I’m ready to hit the rocks, there’s no need to swap wheels and tires beforehand.

    Expeditionr November 1, 2013 at 6:35 pm #
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