CyberBeast Cybertruck Suspension Deep Dive and RTI Test | Car and Driver

[JBee]

Rock Mode Cross links according to the manual

Tightly manages tire slip to maximize grip in rock crawl conditions and sets the Preferred Ride Height to Very High. When the ride height is Very High, the suspension system pneumatically connects the springs on the front and rear axles, increasing suspension articulation for maximum traction.

But he may not have been in Very High / Rock Crawl mode - guessing most don't know this and arent when they're shooting vids.

Hoping the cross link is legit and I plan on getting disconnects for the swaybars!

Well that is great news that it does that, but it sounds like it is only passively doing so which might not be good enough?

I also think it might highlight a similar problem as shown in the video, and that is that a higher airbag suspension setting makes the airbags harder to compress overall to keep the clearance height.

An active system would only allow pressure to flow between the appropriate airbag for the articulation required and monitor and maintain clearance whilst doing so, and the overall angle of the vehicle as to avoid a suspension induced roll over whilst transversing a slope.

Now if it is an active system and does this, then the percieved "stiffness" can only really come from the stabilizer bars, meaning a stabilizer disconnect should be a factory option, otherwise one system is compromising the other. The Rivian has them too, and they aren't a big cost item. A KDSS setup would be best as it is always on and works at any speed and in any condition without user interaction, so you can go from full articulation rock climbing to low body drifting on a track in a second. An aftermarket KDSS shouldn't be to hard either.

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[Ward L]

Is it just me or does the upper control arm look really thin?

Yes, it looks thin, but I don't know the metallurgy. I thought I saw a post where the upper control arm was bent from off-roading. I checked my F150 upper control arm, and it was 3/4" round bar. Time will tell....

 

[Saygmo]

Yes, it looks thin, but I don't know the metallurgy. I thought I saw a post where the upper control arm was bent from off-roading. I checked my F150 upper control arm, and it was 3/4" round bar. Time will tell....

Yeah, at least 2 have been bent so far. it’s likely engineered to prevent something far more expensive from breaking, but may have been slightly under spec

 

[JBee]

Yes, it looks thin, but I don't know the metallurgy. I thought I saw a post where the upper control arm was bent from off-roading. I checked my F150 upper control arm, and it was 3/4" round bar. Time will tell....

As per the video this depends on the height of the knuckle assembly. If its like the CT one so high the ball joint is above the wheel (which also limits wheel diameter) instead of inside the wheel, then the knucle length produces a lever arm to the bottom wishbone assembly, meaning less force is experienced by the top wishbone, which means it can be built lighter as well. This is not to say its good or thick enough, rather only that is why it is substantially less than to bottom wishbone. He also explains the reasons for the different angles etc.

 

[Bartman]

The worst part is a lame weak part.

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