Roll Over Angle

MIGeezer

Jul 20, 2024

I've been doing some homework and can't find any info. from Ford about what the roll over angle is, (ROA). I have seen some info that says 35-40 degrees side and in the 45-50 degrees front/back. I realize these are numbers and there is all kinds of physics that change these numbers. I guess that's why Mr. Lake told me I would need to know this stuff some day, when I got a C- in physics.

So, is it safe to say for side if you are in the 30-35 degrees you should start to be concerned, and 35-40 for front/back? I hope I never have to worry about this, but it is good info to have.

Thanks.
Dave

the poacher, Superstition AZ

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Jul 21, 2024

If you can put your hand out if the window and touch the ground. You may want to rethink your approach.

jparker, Chief Ron

Jul 21, 2024

Yeah no expert, but your numbers are about what I've read. I'll add that a simple hand 'leash' strap/rope held on the up-slope side can help hold your Bronco's wheels down on the surface. Can't really quantify the forces, but these tipping motions start with surprisingly limited force.

So when in doubt, strap 'em up and hang-on!

Cheers

Chief Ron

Jul 21, 2024

J.bell
If you can put your hand out if the window and touch the ground. You may want to rethink your approach.

Good one!!

Chief Ron, BadBronco

Jul 21, 2024

So get an inclinometer and heel it over, record the reading where it play possum. Inquiring minds want to know.

Joined May 29, 2020 Member 546
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Chief Ron, the poacher

Jul 22, 2024

Once you know for sure,it's too late.

Supreme Leader of the Wandering but NOT Lost
2022 OBX Cyber Orange Metallic with random acutriments.

Micahman, Chief Ron

Jul 22, 2024

I tend to best gauge roll over angle at the point when my wife bails out AND she can still successfully push open the passenger side door and eject 🤣.
At this point I know I still have plenty of margin and like others, use the “can I touch the ground with my arm extended” method.

Honestly, I get more pucker factor on a steep incline / relatively level side to side when my steering goes from “light” to very little and what the next few feet will bring me.

Enjoy the journey!

‘22 Cactus Gray / Badlands / Sasquatch / LUX / Leather / MIC

Chief Ron, the poacher

Jul 22, 2024

Bronco V-8
So get an inclinometer and heel it over, record the reading where it play possum. Inquiring minds want to know.

um... the Bronco has one built into the dash.... just go to your off-road screen.
Even the Ford trucks have that - at least newer ones - my Super Duty & F150 both had the same info screen for steering input angle, roll & pitch angle

Chief Ron, BadBronco

Jul 22, 2024

A Suzuki Samurai had a roll over angle of about 1 degree.. Take a speed bump at the wrong angle and a toppling over you went. 😂

Seriously though, I am surprised this data is nowhere to be found in the Bronco's spec sheet..

onX Trail Guide & Tread Lightly Member

Chief Ron, Kenneth

Jul 22, 2024

Most folks get good and uncomfortable at 20 degrees to the side. 35? Hmm.

I am not the leader. I just like to go first.

Chief Ron, the poacher

Jul 22, 2024

#10

How much weight is on your roof?

the poacher, Kenneth

Jul 22, 2024

#11

raqball
A Suzuki Samurai had a roll over angle of about 1 degree.. Take a speed bump at the wrong angle and a toppling over you went. 😂

Seriously though, I am surprised this data is nowhere to be found in the Bronco's spec sheet..

I had a friend in school whose brother started collecting these when they were recalled. He loved them, but yeah every move was a gamble.

Supreme Leader of the Wandering but NOT Lost
2022 OBX Cyber Orange Metallic with random acutriments.

Chief Ron, Jakob1972

Jul 22, 2024

#12

MIGeezer
I've been doing some homework and can't find any info. from Ford about what the roll over angle is, (ROA). I have seen some info that says 35-40 degrees side and in the 45-50 degrees front/back. I realize these are numbers and there is all kinds of physics that change these numbers. I guess that's why Mr. Lake told me I would need to know this stuff some day, when I got a C- in physics.

So, is it safe to say for side if you are in the 30-35 degrees you should start to be concerned, and 35-40 for front/back? I hope I never have to worry about this, but it is good info to have.

Thanks.
Dave

I seem to recall @Laura and @jparker knowing and sharing this data when leading a trail drive years ago. If all else fails you could email the folks at Off-Rodeo, they make it their job to know these things.

Supreme Leader of the Wandering but NOT Lost
2022 OBX Cyber Orange Metallic with random acutriments.

jparker, Chief Ron

Jul 22, 2024

#13

raqball
A Suzuki Samurai had a roll over angle of about 1 degree.. Take a speed bump at the wrong angle and a toppling over you went. 😂

Seriously though, I am surprised this data is nowhere to be found in the Bronco's spec sheet..

To much liability if they print that.

timhood, Jakob1972

Jul 22, 2024

#14

Superstition AZ
I tend to best gauge roll over angle at the point when my wife bails out AND she can still successfully push open the passenger side door and eject 🤣.
At this point I know I still have plenty of margin and like others, use the “can I touch the ground with my arm extended” method.

Honestly, I get more pucker factor on a steep incline / relatively level side to side when my steering goes from “light” to very little and what the next few feet will bring me.

Enjoy the journey!

Well I would probably get out with your wife. I have a hill I mow at my house. I've been told a zero turn won't hold it. I put the Bronco on it. It's about 15 degrees according to the Bronco. It was enough for me. That's why I started the post.

Chief Ron, Kenneth

Jul 22, 2024

#15

OrangecrushBronco
I seem to recall @Laura and @jparker knowing and sharing this data when leading a trail drive years ago. If all else fails you could email the folks at Off-Rodeo, they make it their job to know these things.

I'd guess at 30 degrees the pucker factor will kick in and anything mid 30's or over is a roll over risk. Just a guess on my part..

Of course many variables factor in like lift, tire size, roof rack, RTT etc..

onX Trail Guide & Tread Lightly Member

Kenneth, Deano Bronc

Jul 22, 2024

#16

MIGeezer
Well I would probably get out with your wife. I have a hill I mow at my house. I've been told a zero turn won't hold it. I put the Bronco on it. It's about 15 degrees according to the Bronco. It was enough for me. That's why I started the post.

19-21 feels better then it looks on dirt or sand banks. Did some this last weekend and looking at the Bronco in front of me I suddenly became more aware as it looked like it should tip but we all did fine.

Supreme Leader of the Wandering but NOT Lost
2022 OBX Cyber Orange Metallic with random acutriments.

Chief Ron

Jul 22, 2024

#17

MIGeezer
To much liability if they print that.

Now that you mention it, you are probably correct. I don't ever recall seeing 'official' roll over angles for Jeeps either..

onX Trail Guide & Tread Lightly Member

Jul 22, 2024

#18

I’ve done 24 degrees side to side and 42 degrees up and down. That pucker factor is wild. Any “official” numbers would be in a controlled environment with a Bronco set up in a specific configuration. No way they would report those numbers and then make people believe they could reproduce that on something as random as a constantly changing trail/terrain.

Chief Ron, NativeSoCal

Jul 22, 2024

#19

raqball
I'd guess at 30 degrees the pucker factor will kick in and anything mid 30's or over is a roll over risk. Just a guess on my part..

Of course many variables factor in like lift, tire size, roof rack, RTT etc..

I don't remember how far they had us go at the Nevada Off-Rodeo but I do remember thinking if it weren't someone else's rig that I opted for the insurance on I would likely not trust doing it. It sure felt like I could have reached out the side and touched the ground, I wouldn't though, seems like a quick way to lose an arm.

Supreme Leader of the Wandering but NOT Lost
2022 OBX Cyber Orange Metallic with random acutriments.

Chief Ron, Rydfree

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