I was eating my dinner and nearly died. I'm still laughing now.

I immediately started laughing.

Wait I don't get the joke.

Legitimately one of the best jokes i've ever seen.

Где русский перевод 🤝

You can get a similar demo if you're too cheap to change your front tire and it gets triangle-shaped. Handling will suddenly change in an unsettling way once the bike rolls onto the un-round part of the tire. It feels like you're sliding and gonna crash, but you can sort of get used to it. I don't recommend it though.

@@jamesrindley6215 My friend had a bike that he had driving back several thousand miles on the freeway back from where he used to live and warned me the old tires were a bit square. It was a so unlike riding motorcycle and a huge understatement. I also don't recommend it.

​@@NONO-hz4vosame channel has a video on mounting a car tyre to a motorcycle. Check it out, it's similar to a worn, squared off motorcycle tyre

Not really. There are already proper explanations. Search for "bike veritasium"..

Yeah, I don’t think you get it. He should’ve also said that when you iniciate the turn with counter steer and enter the corner you MUST let the steering go it’s way. If you still countersteer mid corner you will loose the front

Countersteering causes front tire to “track out”, causing the CG of the bike to become out of alignment with the plane of the motorcycle or bicycle. But because you are at speed, the leaning is offset by centrifugal force. In essence, turning a bike or motorcycle is a controlled fall without actually falling. 👍🏼

@@FilosophicalPharmer And this is the same underlying principle of all newtonian dynamics. From orbital injection to motorcycle cornering, all you have to do is balance the forces at play.

@@dustinbrueggemann1875 Amen, Bro! Reminds me of NASA checking in with some astronauts on the way to the moon. “Nothing much happening up here. We’re letting Sir Isaac Newton do the flying….” 😂👍🏼

And this comment having 69 likes at the moment of writing this reply is like the icing on the cake

I definitely got someone's 30 grand worth.

not really over the top with the cbc comment, only true.

what does that mean?

@@Francois_Dupont only Canadians can truly appreciate the CBC joke.

Much more than a cameo! ~RF9

Back as producer ​@@FortNine? That sounds like the return of Thobbe Englund as the guitarist of Sabaton.

there are people who have good camera skills and not! these are good

"Cheap Chinese two stroker" hey! I resemble that remark 😢

Thanks, bud. good tip

I never use front brake while rolling, except in emergency stop.

​@@caty863What exactly do you mean by rolling.

There are people who dont use the front brake?

@@caty863Why? Dont you think that you can use it better in the emergency stop if you use it regularly?

@@banaana1234 That's kinda what I was thinking as well. If you're not used to using the front brake, and you get into a situation where you have to emergency brake... you'll probably just grab a fistful of brake and instantly trigger your ABS, which increases your brake distance. And if your bike doesn't have ABS your front wheel will lock and slide. That's because you don't have the muscle memory of how to brake correctly. Even when you have to brake as hard as possible, instantly applying full brake power is not correct, you have to apply less force at first and then quickly increase.

That was perfect indeed

Same reaction 😂

x2 on my favorite joke of the video.

6:24 😂

He cameos in like 1 in 20 of F9's videos, but yeah, he's the editor, and he's the man.

Same, I have the DVD and all his books.

I still recommend his film when anyone asks me how to get better

@@yeeee7145I think the book is better - it sticks better and you can re-reference parts at will.

A Twist of the Wrist is responsible for me not dying on my street bike, I’m 100% convinced of it

@@allanmoger1838 agree, but getting someone to read a book is alot harder than a film

I read that same book and I'm positive it's kept me safe for the last ten years.

I sure hope so! Looking forward to the video where you give them some more shape. Been trying to figure out how you'll do that.

depends how well you trim those beastly tires into a con shape, can't wait to see it run!

@@californiaholtzthis ^^^^ if just like in the flat tread explanation, if its flat then no steer. gotta finally trim them puppies down !!!

Ah, I see..... I wondered about that.....

@@mickwall8 When I was a kid they gave us The Beachcombers at 4pm. When my sister was a teen it was Degrassi Junior High. When I was at uni CTV intervened with the adventures of Constable Benton Fraser. But, I still dream about living on the coast, driving a tugboat and collecting enormous logs, big enough to mast tall shipts.

But only if you start by counter steer right!

omg lol

@@brycefisher9487 the irony runs deep

Heck, I learned the same lesson as a kid learning to ride my bike. I'd screw around on it all the time and one trick I used to do was lean the bike down WAY over on one side while I coasted down the street.

Bandana tied around the forks, slid down so the triangle drags the tire. Just a trick I'm putting in the comments here for anyone who doesn't know.

I really like how Fortnine videos are so concise and to-the-point.

ooohhh..now I see it.

We bought my SOs bike with a flat middle rear tire. I mean literally 3-4 inches wide of nearly flat tire. They only rode it on the highway so I guess it just never saw any action. It was odd having the bike "lift" up on lean initiation. Once we got the new one on, it felt like somebody took the training wheels off haha. Before, you almost had to force it on the side of the tire.

Short and sweet, move the bars to make the motorcycle fall in the direction you wanna go😂 you could even put that on a T-shirt… As usual, your videos are fun and entertaining 👍

thought the filming style seemed back to normal

Exactly my thought! When he left, the cinematography on the channel dropped drastically. I hope this means a return to more beautiful videos of Ryan reviewing bikes in the wilderness.

@@gdijkema yeah no offence to the new camera person but it's just not what we grew to love the channel for

Sounds promising: Creative Production Manager FortNine Permanent Part-time Jan 2024 - Present

@@gdijkema I wouldn't say it dropped drastically, it's just different. And there are more 360 video since they got the sponsorships

Hoping for a new one to go back on their 285 crossplane video, given it was mostly wrong

You rode with a sidecar for your license!? That's cool. I've done 3 bike licenses here in the Netherlands and none of them had sidecar

@@luuk341 Yup, it was on a closed course for 2 hours towards the end of the course. It's apparently so MC with a sidecar isn't a seperate category on the license, and they can say they taught us.

Which country? EU license doesn't require any sidecart exercise and you don't need a license to ride with sidecart motorbike.

Simon Crafar does a pretty good job of it as well

​@@edwardtupper6374 Thanks. I picked one Crafar video at random on inertia and gyroscopic effect and sadly he was wearing a face mask that kept slipping off his nose, while filming alone, outside. . No matter how experienced he might be, my opinion of him was forever tarnished. I will give him one more chance.

The jazz track is underrated..

Yes. Which is why putting weight on the inside handlebar of a turn WILL actually make the bike turn. It's pushing the steering not offsetting weight from the center. Unfortunately Ryan equated that with "weighting the bike" and said it wouldn't make it turn. He also left off the part about the geometry of the steering and forks being the thing that is always trying to right the bike (it's not just rotational inertial, you can see this effect in a riderless bicycle going walking pace) which is why a constant pressure is required. Ease that pressure off the inside handlebar mid corner and the bike will want to stand back up.

If that's the way your tires wear. Mine get more cone shaped towards end of life especially the front. It gives the opposite effect.

I am guessing a skate board was involved.

Me remembering my mogul hardman days at Taos, NM circa 1984-1992 on 197mm to 200cm skis. Yeah(BREATH), you're going to have to forget that advice and hammer your poles, imagine the fall line can only be seen by eyes on your nipples(BREATH), full extension of the human shock absorber(BREATH), weight the tips, keep turning(EAT a Knee to the face) and when all else fails. Fix it in the air and hopefully land it. You did a good job on the basic mechanics of turning locomotion with respect to slippy cold gravity.

You have exceeded your knowledge by a fair amount. Single track vehicles countersteer. Skiing and walking/running are not that.

​@@kenthartfield3237 You're entitled to your opinion but the physics is clear, and entirely testable. They're both still balancing activities. Try this easy one yourself. Establish a brisk walk right on the right edge of a sidewalk (for safety find some place with grass at same level on both sides) and then at some point try to initiate a quick 90 degree turn to the left. You may be able to make a slow turn by just shifting your upper body weight over the course of a couple steps (much like riding a bicycle without hands), but if you want to change directions quickly you'll find that you have to step off the right edge of the sidewalk (outtrack/countersteer) to do so. Now try going straight, then zig zag at fast walk, then jog, then running pace. Notice that subconsciously (until now) you always wait until you can plant your right foot wide to initiate a hard left, and vise versa. As for skiing. If you're going down the hill in a wide stance you may not think you're countsteering because your weight is on both skis, but consider that to initiate a left turn you have to put more weight on the right ski. You're shifting your contact point to the right below your CG, to turn left, and vise versa. But what I was talking about is the way people ski when they go fast on packed/goomed snow, feet mostly together carving big turns. If I'm carving a left turn and need to switch quickly to the right, I can either force my left foot out further left and put my weight there (still outtracking as above) *or* I can roll up onto my skis left edges which (due to their shape and our rearward position on the ski) causes the skis to turn more sharply to the left which throws my body over the skis to the right. Visually we may perceive it as the skis cutting left and right while body just goes down the fall line, but you can't make that transition quickly without countersteering. To be clear, I do ski, and I transition this way. What I do looks no differently to how anyone else skis, I just am aware of *how* I'm doing it, just like someone who knew how to ride a bike and now consciously countersteers.

You are just spouting nonsense. Nothing you described is countersteering. Both skiing and walking are analogous to a double tracked vehicle which does not countersteer to initiate a turn. It may be that you like to turn in the wrong direction before you turn in the right direction while walking or skiing but it is neither required nor helpful to making a turn. Have you wondered why no book or video on skiing has ever mentioned countersteering? Have you ever wondered why no book or youtube video has ever discussed countersteering in the act of walking? It's because it doesn't apply. So tell me, Is ignorance actually bliss? Inquiring minds want to know.@@daemn42

@@kenthartfield3237 My assertion is testable and falsifiable but you didn't bother to take the 5 minutes to step outside and test it yourself. Just because people don't realize they're doing something doesn't mean it's not still happening. The idea of "countersteering" didn't exist for about a century yet people were still doing it while riding bicycles first and then motorcycles every day. Then people would assert "it only applies at high speeds" and that myth persisted for almost another half century, but is easily disproven. As for "multi track vehicles" the wiki article for countersteering points out "Free-leaning multi-track vehicles must be balanced by countersteering before turning." For skiing to not be free leaning you would have to maintain a fixed super wide stance where you don't lean your body, especially leaning inside your inside ski. And walking is 100% a balancing activity. There's no way to walk while keeping both feet in contact with the ground all the time.

Yeah it's the newer gibberish online 😂

Watch any of Motorman’s Ride Like a Cop videos. Last I knew, he still taught the “magic speed” theory where you countersteer when faster than the “magic speed” and “normal” steer below the magic speed. And last I knew Total Control still taught this in their curriculum.

​@@LTVoyager cornering at speed is not at all like cornering at parking lot speeds or cornering when accelerating away from a stop. I would not teach a novice that you counter-steer at ten miles/hour as you would counter-steer at 70 mph. Thought the video above was a commercial for riding school and what better way to get someone to go to school other than make people seem stupid.

@@runeveryday1069 Counter steering works EXACTLY the same at 5 MPH as at 50 and at 150. The only stupid folks are the folks who can’t understand that once taught. Those who have not yet been taught are just ignorant. Those taught and still refuse to understand are stupid.

He's covered caster angle and caster displacement on his Rune video. Minute Physics's video on why bicycles self balance is probably the best overall video. That really taught me that the art of riding is off balancing the bike in a controlled way, and letting its dynamics do all the work to actually steer. At least over about 10 mph.

Steering into the turn once leaned over is only to maintain the desired lean angle. If that is what you mean by “turning benefits”, then I agree 100%.

@DianaTheLance that is not correct, since the axis of the steering head falls in front of the contact patch, you have a self aligning moment given by the cross product of the combined force on the contact patch and that caster axis. The simplified moment arm is trail which comes from the caster angle you mention and the intersection of the tyre with the ground. If caster were in fact turning the tyre into the turn, then a motorcycle with no rider should instantly fall at any instability, there's plenty of examples that show that that is not the case!

@@LTVoyager What I'm saying is that you physically cannot turn left if your wheel never points left of center during your "turn". If you countersteer to the right to lean the bike over and then are able to hold the bar to the right of center the whole time, you're never going to turn to the left. You're going to keep leaning over until you hit the ground. Go put that CBC device on your bike and try to turn towards the direction the CBC device blocks off. You'll have no issue initiating the countersteering and I'll have no issue saying "I told you so" when you come back telling me that your bike hit the ground and never turned in. In the video you can clearly see that the bike never goes left while the CBC is installed. You can clearly see that the bike never starts going into the turn until the handlebars turn back into the turn.

​@@dovilacus > since the axis of the steering head falls in front of the contact patch, you have a self aligning moment > If caster were in fact turning the tyre into the turn, then a motorcycle with no rider should instantly fall at any instability These are contradictory statements. What do you think the self-aligning moment does when a bike starts to lean over, if not steer into the turn to straighten the bike out? I didn't mention "the caster angle," I mentioned "the caster effect," the thing that you're describing but clearly don't understand well enough to argue about. As Ryan said, a free opinion is what you've paid for it. Go get that CBC device. If it blocks off steering to the left and I'm wrong about your bike necessarily steering left during a left-hand turn, you should have no trouble making a left-hand turn and posting video evidence of it. I look forward to seeing a nice video of you crashing your bike as it just keeps leaning and leaning until you're on the ground while the bike never points more to the left than it did before the turn. If you don't trust your own understanding enough to put your bike on the line, here's many instances, in this video alone, that support my claim that the bike isn't turning unless the front wheel is steering into that turn. 0:58 - 1:20 1:37 1:55 2:23 2:40 - 3:00 3:55 - 4:08 6:29 - 6:45 It's probably worth noting that this is basically every instance in the video where the bike can be seen turning at all. The only clips left out are ones where there's not clear enough indication of the direction of the wheel/bars to support or refute either claim.

​@@DianaTheLance First of all you're a [redacted for youtube] for the demeanor in the counter-arguing for my point aswell as @LTVoyager's Second, those statements are not contradictory, if you didn't have self-aligning moment, you would have an unstable equilibrium point on a straight wheel, and you would have to fight the steering more and more with higher steering angles and lateral forces generated on the tyre. However, there's some nuance, you do in fact have an unstable equilibrium, sometimes, but this will depend on the dynamic condition on the system: E.g. there will be situations where the bike will lean more and more until it falls, some where it can reestablish it's upright position, and some where it oscillates for a while before falling to one of those points, in fact, there's a reason why you're not seeing bikes constantly riding themselves when riders fall over. The generation of a lateral force on the tyre, is mostly contingent on there being a relative velocity vector to the direction of the tyre, along with other smaller effects. On the front tyre, an inwards force with a trail in front of the contact patch, will generate a torque that aligns the tyre with the relative velocity vector, negating it's value. That in fact, creates an instability effect that will be more aparent at higher lean angles, when the center of gravity is leaned over enough to create a significant roll axis torque that brings the bike down. However, the force on the rear tyre, which is something that is seldom talked about, is also generating a torque around the steering axis in the opposing direction, that builds a relative increase in steering angle. Two oposed effects related to the same quantity, due to the fact that motorcycles are multibody mechanisms! "What do you think the self-aligning moment does when a bike starts to lean over, if not steer into the turn to straighten the bike out?" This is a point I tought about and researched a bit before posting my own comment. While your statement with respect with the tyre having a turning angle is correct, although trivial, in terms of rider control, as in the input on the steering axis, you are absolutely incorrect. In fact, I suspect that after you account for the equilibrium of moments from the tyres in steady-state turning, to have a stable steering angle there should be a countersteering moment that you need to exert on the handlebar (in the direction out of the turn) to compensate for what is being generated on the back wheel minus what is generated on the front wheel. This is a model which I would very much like to see confirmed with a dynamic simulation, but I don't have that ready yet, so I can't, but it matches what I feel when I ride where I keep aplying a counter steering force all throughout the turn and yet the axis rotates a bit into the turn :) But I "clearly don't understand well enough to argue about" right? We'll see what your rebuttal will be ;)