Tire/Wheel Discussion

[TahoeMichael]

There are sidewall repair kits though I've never used one and I've heard you should probably carry an angle grinder and flappy wheel too to prep the sidewall.

GlueTread

GlueTread

www.gluetread.com

Regarding cell reception, iPhones and some android phones come with satellite texting capability. Still, getting towed on a dirt road is not cheap!

Yeah, there are a variety of satellite comms devices one could bring along. But even so, you could easily be sitting around for hours waiting for a tow truck to appear, so it's not just a question of money.

 

[hmp10]

Okay, but which tires work best for a minivan?

 

[hmp10]

FWIW, the new Pirelli P Zero PZ5 that will be on the largest Gravity wheels has a considerably squarer shoulder than the PZ4 it updates. This is interesting, as European tire brands usually stay with more rounded shoulders due to the more pronounced crowning of most European roads compared to U.S. roads.

 

[jered]

I have a dumb question -- I was just looking at R1S specs (comparing power ratings), and I noticed that the *smaller* wheels there are less efficient: 22" wheels have 410mi EPA rating, while 20" have 370mi. Is that because of the weight of the rest of the all-terrain package, or the fact that the 20s are all-terrain? (Yes, I know this is a Lucid forum, not a Rivian forum...)

 

[pjdcorp]

View attachment 27939

So you stole Fred Flintstone's sports car, didn't you?

 

[hmp10]

So you stole Fred Flintstone's sports car, didn't you?

Oh, I didn't realize. It came up on a google search for Henrik Fisker's next prototype . . . .

 

[Elfin]

I have a dumb question -- I was just looking at R1S specs (comparing power ratings), and I noticed that the *smaller* wheels there are less efficient: 22" wheels have 410mi EPA rating, while 20" have 370mi. Is that because of the weight of the rest of the all-terrain package, or the fact that the 20s are all-terrain? (Yes, I know this is a Lucid forum, not a Rivian forum...)

All terrain tires are much less efficient than all season tires.

 

[illopp00]

I have a dumb question -- I was just looking at R1S specs (comparing power ratings), and I noticed that the *smaller* wheels there are less efficient: 22" wheels have 410mi EPA rating, while 20" have 370mi. Is that because of the weight of the rest of the all-terrain package, or the fact that the 20s are all-terrain? (Yes, I know this is a Lucid forum, not a Rivian forum...)

The All-terrain tires are inefficient on rolling resistance because they need to grab onto gravel and rocks They also have a lot of give in the tread to compress.

 

[Elfin]

Are these 20"/21" wheels or will smaller diameter wheels fit over the brakes?

I like the idea of a set of all-terrain (3PMSF) tires for snow/dirt and a set of summer wheels.

I wonder if these are the KO2s? And what size fits, the smallest outer diameter 20" ko2 is 31.8" (Gravity is 30.4" front 31" rear)

"The cars we used for this off-road portion were shod with the standard Michelin Primacy all-season tires (no cheating with knobby all-terrains) and it still performed quite capably. Lucid has tested the Gravity on BF Goodrich K02s, and while there are no current plans to offer them as a factory option, nothing can be ruled out for the future.

After warming up with some dirt donuts, we moved over to a larger horse paddock where they set up a rallycross course (essentially an autocross on dirt and sand). After a recon lap to check out the course in medium mode, we switched over to everything off and hit the accelerator. With the electronic nannies mostly sidelined, the Gravity was an absolute hoot to hoon around the course, hanging the back end out and putting in lots of counter steer with that squared off wheel. According to Lucid vehicle controls engineer Esther Unti, when running the same course on the K02s, the Gravity could carry another 40 mph!"

The Lucid Gravity Is The Best Big Luxury Electric SUV You Can Buy Right Now - The Autopian

Like most startups in the history of the automobile, Lucid Motors has had what could charitably be called a bumpy history. Its first product, the Air sedan, was first shown publicly in 2017 (although I got a background, deep dive on it and a look at the first prototype earlier, in November 2016...

www.theautopian.com