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  1. BillArnett

    SF Bay Area Rivian Adventure Owners?

    The Trans America Trail is a freeway compared to the Rubicon. Not even in the same universe. But even on the TAT they managed to destroy a couple of tires. So no, my concerns vis a vis the Rubicon trail are not alleviated, they're confirmed. I agree with his assessment of the suspension...
  2. BillArnett

    R1T vs Jeep Gladiator side-by-side look

    I think it's not so much new vs old tech but rather a different target market. The Wrangler/Gladiator is targeted at folks who want to be able to do some serious rock-crawling (even though few of them actually do). Hence the rocker panel protection, steep approach/departure angles, etc. And they...
  3. BillArnett

    R1T vs Jeep Gladiator side-by-side look

    You can also see how much better the Jeep is when the going gets tough.
  4. BillArnett

    RJ Scaringe posts video: Steep Climb @ Moab by R1S

    I don't know where "Hell's Pass" is in Moab. I suspect he really meant "Hell's Revenge". That video is really not that impressive. Steep climbs like that look really scary but in fact they're easy. It's all about traction and approach/departure angle. If you can get started on the climb...
  5. BillArnett

    Off Roading Question:

    That's good for you. For me there are a lot of places I want to go that a Rivian is incapable of reaching. And for the most part I want to go to those places not because they're technically difficult per se but rather because the difficulty keeps out the crowds.
  6. BillArnett

    Off Roading Question:

    I’ve seen Range Rovers on Hell’s Revenge. It’s really not that difficult, just intimidating. I expect the R1T will eat it up. Though I expect some of the plastic bumpers and rockers might be messed up.
  7. BillArnett

    Off Roading Question:

    I’m afraid that the CyberTruck will have that problem, too. It’s huge.
  8. BillArnett

    Off Roading Question:

    You’re right, of course. And it’s also true the most Jeep Wranglers never see the dirt. But Jeep has left open the possibility of after-market mods for those who want something more. Rivian could have made the wheel wells a little bigger and the brake rotors a little smaller with essentially no...
  9. BillArnett

    Off Roading Question:

    IMHO, the term “hard core” refers to a vehicle that’s not street-legal, a race car or a rock buggy and so on. When I built my Jeep I tried to make it as capable as possible without sacrificing on-road legality (though, of course, I had to compromise on on-road performance and economy). The nice...
  10. BillArnett

    Off Roading Question:

    Good point. In winter that would be a benefit. But in summer it might require active cooling which all of a sudden makes this a much more complicated installation. Sigh :-(
  11. BillArnett

    Off Roading Question:

    Another possibility is a light bar that installs INSIDE the windshield at the top out of the driver's line of sight (mostly). No aero problems!
  12. BillArnett

    Off Roading Question:

    Here’s a good example of why tall sidewalls are good off-road. You can get much better traction on slippery surfaces with the tires aired down:
  13. BillArnett

    Off Roading Question:

    I'm hoping there will be a relatively easy way to simply remove and replace all the plastic bits below the bumpers and doors. Extra lights are nice. Way, way better than the best headlights. (There are lots of rules about headlights that make a lot of sense on the highway but severely restrict...
  14. BillArnett

    Off Roading Question:

    Sure. But that doesn't work if the rock is too big. Then the only choice is to put a wheel on it. Then the problem becomes clearance beneath the rocker panels (under the doors) which on a Jeep is far higher than in the center. Hence the need for rock rails to protect the body at that point. Will...
  15. BillArnett

    Off Roading Question:

    Oh, don't get me wrong: I'm all in for independent suspension. IMHO, articulation is over-rated, probably because it looks cool :) And I'm very much looking forward to Rivian's vastly superior on-road performance compared to my Jeep. The sad truth is that my Jeep spends more time on the freeway...
  16. BillArnett

    Off Roading Question:

    True IF the software reacts fast enough. And the remaining tires can get enough grip. The undersized tires are going to be the main limiting factor.
  17. BillArnett

    Real world Off Roading Pros/Cons

    Yeah, 38s would be great. But smaller wheels with bigger sidewalls is also good. I wonder how hard it would be to replace the stock Rivian brakes with smaller ones to allow fitting smaller wheels? Obviously, Rivian could do that trivially. But as an after-market “upgrade” it would probably be...
  18. BillArnett

    Real world Off Roading Pros/Cons

    You could pre-heat the battery in the cold case. But I’m not really suggesting that Rivian eliminate the friction brakes. What I question is whether such large ones are really required. A Ford F-150, for example, can be had with 17” wheels (and brakes to match). If that’s good enough for Ford...
  19. BillArnett

    Real world Off Roading Pros/Cons

    Those people can simply charge to less than 100% before starting down. Otherwise they’re throwing away energy.
  20. BillArnett

    Real world Off Roading Pros/Cons

    Yeah but the video showing the truck climbing a rocky hill that was posted a few months ago is not too promising. It did get up the hill but it was kind of ugly with the wheels spinning briefly before the torque was transferred to the other side. The system needs to respond much more quickly. Or...
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