So one issue to consider is that as you increased the angle you also decreased the distance available to come to a stop. That is, you made it harder in two ways. I don’t think this would work, but a fairer approach would be to use the same length ramp each time and attach it to a scissor lift to increase the angle as opposed to cutting the ramp each time. As a side  note when you cut the ramp, not only do you decrease the distance available to stop you also decrease the amount of time you have to stop.

The guy used ChatGPT for maths, my reality is in shambles and I'm in tears.

This was one of the least sketchy 'sketchy' things you have done in the past few years and I would already be out after 35%.

I think a lot of Joe's success comes down to brake modulation. Maybe he has better brakes, maybe he has better control, but looking at the video, he slows down a lot more progressively and does a lot to avoid locking his wheels. The whole time he seemed to get right under the stiction point. Kind of like manual ABS.

Engineering Student here, I did some calculations on what angle you should be able to reach based on some educated guesses on some factors like coefficient of friction and found a max angle of 41.19°. I feel like your test is fairly accurate depending on the conditions. Thank you Seth for always testing crazy ideas that many of us have had!

2:15 Seth does the one thing ChatGPT is known to be terrible at: maths :D. Good to see that it at least got the simplest of calculations right.

Wasn't expecting the full-on commitment of cutting the ramp shorter to make it steeper - great job!

Try using the same bike but put hookworms or thick slick tires on so you have as much grip as possible and lower the tire pressure. I feel like that should work better than the knobby tires with less contact point 10:59

I watch so many different genres on YouTube, but the angle cube inevitably shows up in all of them!

Idk if this will get any likes since it's posted so late, butttt I wanna say it. I think me and many fans miss the berm peak trail builds, no pressure if that Era is over for you and you don't want to, but I promise that the fans will watch those to the end of time and we'd love to see them come back. Here's hoping we can get at least few more to test the waters on trail build videos ability to succeed now a days in the algorithm. All the best to Seth. I'll keep watching no matter what you make, but I'd love to see the berm peak trails grow if it's still works on the channel. If you agree and also hope for the trail builds to return drop a like so more can see

Hi Seth! Old viewer, 1st comment. IMHO, at your try at home, you were negatively affected by your starting angle. Please take note that you were entering the ramp from a step, and no matter how little it was, I think it added degrees and speed to your test. Have a nice one. Keep it rolling ❤

10:25 I love that, "It's as just steep as it's flat" 😅

Nice, for all those times I go for a ride with my inclinometer.

Track stand on a ramp that is raised with a pully system until  you loose tracktion might be an intresting test as well.

A lot of youtubers struggle to come up with ideas to create original content. After all, how many mtb related ideas can there be? You do a great job of keeping your audience engaged.  At least me....

Seth hurt me using chat gpt, I started watching this channel in middleschool when I was learning abt Pythagoras. 😭

This setup could be a really cool testing tool for stuff like nosewheelies. Especially if the angle of the ramp was adjustable and not just cut shorter.

This piece of wood sticking out from your deck makes the bike go at a steeper angle because it raises the rear wheel and changes the bike's final angle.

I like how Seth's explanation of what would happen when they reach the point is 'essentially we'll be fine cause we're not stupid'

Since your failure point is sliding, the two important things are coefficient of friction on the tire / grip tape contact point and brake application on both front and rear to avoid locking either wheel before the other one since static friction (contact point not sliding) is higher than sliding friction.