Front tires slipping/skipping on full lock

[Picard]

I have been noticing that when I am at full lock (parking lots, going around traffic circles etc), the front tires seem to slip. It happens on dry but certainly more on wet roads. I have about 13K miles on the tires (22" bright) and they seem fine - no signs of excess wear. The tire pressures are at 48 psi and I dont see correlations with how warm the tires are from being driven. Anyone else experiencing this?

Sponsored

 

[RIV206]

I experience the exact same thing (21"). They kind of skid a little

 

[Electrified Outdoors]

I experience the same. Possibly the Ackerman Effect?

 

[Budman]

I have noticed that a few times. I thought it was from loose sand and rocks.

 

[ghorse]

I have noticed the same but only when turning left

 

[Zoidz]

Yes, it's "normal". This is similar to what happens in a 4WD vehicle. The inside wheels need to turn at a different speed and it's not quite perfect, so things slip and lurch. As mentioned above, the Ackerman Effect. The next Rivian OTA .50 appears that it might address this? Not exctly a clear description. Rivian could have a bit more control on a quad motor than a typical ICE, since each wheel is driven independently.

Additional Improvements

• Improved vehicle maneuverability at low speeds.

 

[diehlryan]

We had the S into the Service Center and replicated this with the tech on drop off. They determined it to be normal and no signs of concern with the vehicle.

I do not experience it with the T. I'm assuming the difference in wheelbase.

 

[bbonkk]

If you drive in Conserve mode you will notice less skipping.

 

[Picard]

I was worried that this might be a half shaft thing but sounds like I need to atleast give the next OTA release a chance before going to a service ticket (which will likely get me in sometime in 2025 ).

 

[Swezey]

I've never experience this (2+ years ownership) until this month.
Perhaps I wasn't going full lockout? Anyways - glad I found this thread and it's "normal" and not service related issue.

 

[UnsungZero_OldTimeAdMan]

Completely normal. It happens with ICE cars too. The sky isn't falling.

 

[renat.gatin]

I happens to my R1S 2023 all the time I do full turn drive.
I wan worried about that, and wonder if I should request a service or not.

 

[HaveBlue]

Steering axis inclination and a tight turning circle I think

 

[dogenbergs]

this is definitely ackermann, or lack of perfect ackermann. kinematically if ackermann ratio is not 100% there will be some scrubbing. i noticed this a LOT more on my R1T when i switched from 20" AT tires to the 22" michelin pilot sport S5's. stiffer sidewalls and more grip make the stick-slip more dramatic.

 

[RivianRocks25]

I had service look at this last winter and said it's Normal. Right.... Ackerman effect and not designed right honestly is most likely the reason. I notice it less this year when I switched from stock 21" to Dodge 2363 20" and Hankook iPike 429 winters. The Dodge rims have a different offset from stock and stick out of the wheel well a bit so changes the steering geometry also.

Side note, with the tougher stance look, we now call it the D' Rivian (dodge- rivian).

Very happy with the 20s and Hankook winters. The stock 21s sucked on snow! Hankooks are Very grippy! Quiet too for winters. Paid $170 a tire from Simple tire and all four rims for $200 cash total at the junk yard. Efficiency took a hit but temps are around 0 deg F so there is that and hard to separate temp drop from tire efficiency.

Sponsored