Motorcycle Geometry | EXPLAINED
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- Опубліковано 3 чер 2024
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Most of us regular riders don't go beyond adjusting the suspension on our bikes. Heck, a lot of street riders don't even adjust their tire pressures. Add me on Instagram: mikeonbikesofficial
In this video I go beyond the regular suspension talk, and focus on explaining Motorcycle Geometry. You see, the geometrical setup of the motorcycle has a crucial impact on its performance. Adjusting the suspension might also require changes to the bikes geometry.
#Motogp #Motorcycles - Авто та транспорт
Thank you for this information!
Now when I crash my bike due to lack of skills, I can just tell everyone who witnessed it that I made incorrect mechanical adjustments on the bike that resulted in poor geometry conditions!!!
Nah dude, there must be something wrong with the tires..... :-)
Thanks for the reveal :P
So lack of mechanical skills as well as riding skills...
Sweet excuse making skills!
LOL
Anti-Squat sounds quite slavphobic.
Boris and Anatoli want to know your location.
They should have bough soviet motorcycle like Урал: Ural (basically a copy of bmw engine)
As a Slav... that makes me sad 🙁... 😂
ahaahahahahahahahaahahahahahahahhaah as a slav....i love this :D
Please change this term, it offends me and my culture.
Jhony sins known as teacher, scientist, doctor, etc..so when he explain about bikes, its a best explanation.. 👏👏
I bought this book many years ago and I highly recommend it:
Motorcycle Design & Technology: How and Why by Gaetano Cocco
Hey AWi Co maybe you should send a copy of this book to Harley Davidson .. I don't think they have it figured out yet.
When an Italian engineer writes a book about motorcycle handling you know it'll be good.
I read most reviews, depending on what edition you buy, it's not obvious if the later
edition is much improved over the earlier edition, the earlier edition appears a complete
nightmare , horrible Italian to English translation, poor math, and very poor editing in general.
Looks like some people loved it ,and others found it a waste of time , trying to figure out
where the poor translations vs bad math and editing start and finish. :shrugs: , I''ll pass, will
look for something else, but glad to know there are books out there that explain bike geometry.
I'm currently doing a study about motorcycle suspension and some dynamics and this video has summarized a big part of a few books that I've read, which were kind of hard to understand. Thanks for making this, made it really easy to understand, props for that.
Check out Tony Foal. 👍
Thanks Johnny Sins
The rider is just an onboard engineer.
Believe me. As an engineer I cant onboard like the pilots on the video, lol.
@@juanete838 I bet that you can tie your shoe laces though. I too am an engineer and have worked in motor sports, some of the best test riders and drivers are just useless at all other aspects of life. Good engineers do not make good test riders, this is because they can tell that things are going wrong before most other people would notice. One manager at a car manufacturer in Britain once said to me that it is the job of the engineers to break the vehicle, and it is the driver's job to crash it, adding that it is easier to replace a test rider than it is to replace a good engineer. You will only ever find the limits by going beyond them, and that can hurt, or worse.
I need a KTM scale model like that to fool around with at the office
Hahahahaha your comment made my day, sir.
Amazon carries these.
best comment ever!
Me, too.
I've been following you for a while. Your quality has been getting better and better!!
“The use of wide tyres causes another difficulty when the bike rolls because the contact patch moves further and further from the bike’s centreline and from its steering axis. The taller the tyre section the more pronounced these effects are; lower sections minimize them, for a given width of tyre. There are several effects. It reduces the camber thrust for a given angle of lean. Ironically, a bike with a higher centre of gravity or with the centre of gravity shifted in towards the turn, will require less angle of lean to balance its centrifugal force.”
I took that off John Robinson’s book, Motorcycle Tuning Chassis second edition under the section of contact area in tyres.
Perhaps maybe you could do a video why wider tyres need more lean angle to turn and narrow tyres use less. And how how centrifugal force is actually needed to turn with the same bike but different width tyres. Perhaps you can mention why did MotoGP used 16.5 wheels and why some asian drag bikes used bicycle sized wheels on their drag bikes.
Thank you in advance
Hey man, I think you can understand this on a video better than with the words of my. Just search how steering works to youtube and click on some animation.
Excellent explanations! This information is necessary for both racers and cruisers who want to better their skills by understanding how skills work with the geometry of the bike. Thanks for such a well made video!
Fantastic video! I come from the offroad side of bikes and chassis setup is equally important. I would always try and talk my customers into getting chassis and suspension setup before getting all the engine mods they wanted. Makes a huge difference.
Thanks Mike. Been riding all my life.
When I decided to go track riding on a Sportbike i chose one whose frame is near perfect for me...
2018 Aprilia RSV4 RF LE#14 w/wings!😍
Solid stuff Mike! 👍 Thanks.
One thing about 'transfer' it's actually not weight, but Load.
Load Transfer. Weight is constant- I.E. bike & rider. But the longitudinal load changes from rear to front & vise-versa based on the amount of braking force & acceleration.
Nice videos mike!! I spent endless nights thinking and reading and searching for all these technical issues and details. Is nice to watch them all in one video. One point still not clear to me is the effect of the height of the neck (steering head) from the ground since is very different between bikes of same category. Seems important to me
My favorite video from you thus far. You’re growing a lot
Super job, Mike. Reading the transcript is a great help to really digesting all this.
dude, it feels like every once in a while i come back to this video and it blows my mind how much we don't know about motorcycles. i reckon i will watch this video dozens more times, and with more and more reading in between and hopefully one day I will understand all these points more intuitively. (also speaking as an engineer who loves bikes, btw)
This time, the point about centre of gravity making it easier to flick bikes around was a big revelation. the bike i am riding now is a 390 adventure, and recently i started doing more counterleaning in canyon twisties riding and i felt like it made a HUGE difference in my cornering confidence. then i started reading about the tribal comments of whether to lean off or counter lean. So naturally i started wondering if the bike had any effect on whether it is better to counterlean or lean off, and the point about centre of gravity i think answered this question.
I really wish this channel was still making new content but i am grateful of these videos. Thank you!
A big thing that many newbies over look is rear axle position..
Pushing the axle further to the rear will make the bike turn in slower and the moving it forward will make it turn in quicker without even touching the front forks. So try to find the optimal axle length position and if you want to change gearing use different lenght chains to keep it in the sweet spot the rear of a motorcycle is often overlooked but very important for optimal suspension settings
Finally one no BS video with actual information and it is explained correctly. Perfect!
Another great video! You deserve so many more subscribers, awesome content as always!
Awesome vid mate! First I've seen of yours and hitting the sub, keep up the good work
How comes you don't have more subscribers? The quality of this video and it's technical content is amazing. Congrats and thanks for sharing!
This was great, informative and best of all told by a simple man ( Mike on bikes ) those books are hard to understand in some ways. But when it comes to suspension geometry it's almost like opening Pandora's box. Plenty but heads trying to set up or ajust suspension systems. Mike you said it best and simple to understand and I applaud you for this bit of knowledge.
Awesome video. Love the visuals. Really helped me wrap my mind around the subject. Subscribed!
Such a complicated subject explained perfectly, thankyou! Fantastic presentation too
This is a great video with a lot of informative content! Thanks Mike!
Thanks Mike, I really enjoy your videos, seems that just as I get my head round one aspect of setting up my Tracer 900GT, I need to understand something else.
As I am fond of saying, the more you know, the more you realise how little you know.
Luckily I have you and my 2 sons, an Astrophysicist and Mechanical Engineer to help me
2:26 "the numbers, mason! What do they mean ?!" (I dont know if someone else wrote this or something similar)
Holy crap I just learned so much in 12min! Thank you fo your videos dude, these are so great!
Mike, EXCELLENT video man!
Impressive! Gonna need to watch this a few times though!
I daily an SV, awesome lesson bro greatly appreciated by the moto community
Coming from the world of bicycles...nice to see that we aren't the only ones struggling with the subject! :))
Blew my mind man! Never knew any of this!!! Same with the tire friction vid you did!
Great info ! Thanks! now i have some things to think about for my bike for next season here in sweden :)
I had to stop half way because my head started hurting. Will watch again tomorrow ;)
Me too.
Another excellent episode
Very interesting! Great explanation!
I think I'm ready to build a motorcycle from scratch now...
i love the professionality with the colored lights in the background xD
OMG I have looking for this everywhere...this is a great help for me bro thanks
Your videos are so awesome, I learn a lot , thank you very very much
My respects!! great content! From Lima Perú
Great video! Explaining tyre geometry and characteristics would also be nice
Wow, that was a really great explanation.
Not to be that guy, but something missing on the anti-squat portion is the fact that under acceleration the rear ride height of the bike actually increases not decreases which is counter intuitive. This is doe to the torque vector of the drive chain acting on the axle which sits below the pivot point of the swing arm and the drive sprocket. Or in other words, the drive sprocket is trying to pull the rear wheel to the engine through the shortest distance which is under the bike. If the axis of rotation of the swing arm and drive sprocket were co linear or the rear axle where positioned above the pivot point of the swing arm than the opposite effect would occur. This is one of the reasons why power must be applied smoothly when exiting a corning. To much throttle will shift the CG forward and up. Once rear traction is lost the rear immediately drops until it regains traction at which point the suspension violently extends and draws the rear wheel back into alignment with the front resulting in a high side.
.
thank you very much until now i was very skeptical about the acceleration in a turn subject
Much appreciated the effort!!
- ... traction wasn't mentioned, would a bike with a lower swing arm angle (more parallel) create more traction on acceleration because the pulling force is more lateral? The initial power would be *into the swing arm, as opposed to *perpendicular to a more vertical set up... So the question is, does traction come from more resistance (low swingarm angle) or less resistance (high swingarm angle) where weight, engine, rider, etc are all equal? I guess I should read the book.
The trade off is obviously trail length on the accommodated design? That why cruisers are as they are..?
I should read the book. Any hints welcome. Thank you.
Thanks for making this video very informative.
Great video as always. Was wondering where your videos were 😂😅 keep producing bro
this is the best video about motorcycle center of gravity
Came back after 3years and now finally I understand everything in this video and knew all of this. Definitely can’t explain it the way he did, without making it complex and keeping it simple. CHEERS TO MY PROGRESS AND THIS AWSOME VIDEO!
A loot of custom builders especially in USA must immediately watch this video, because some custom bikes are unrideable. Nice educational video
really great channel bro !!!!!! congratz !!!!!!!
Nice video bro!
Thanks for the explanation 🙌
Its Actually very easy to understand. From static sag to the basic gyro of the motorcycle. Which is Actually what was taking place when you said : You want to turn and the bike wants to go straight. Which is what you get with counter steering.
Thanks a lot.
I will have to watch this again, probably more than once, but I think I got enough of it this time to know that... I will not be adjusting the suspension on my small or big scooters!
More of such informative videos please!
10/10. finally a simple explanation with examples!
Thanks for sharing knowledge about Motorcycle Geometry..Person who wants to learn about VD related to Motorcycle should watch this Video.....
Simple explanations of important principles in two wheeling. I run two boxer BMWs: an 84 R100 and 2017 R9T. Completely different geometry on a number of fronts especially the old vs. new suspension. When I get on the 84 after a lot of time on the 2017 I have to be very careful because I will go into a corner with some speed on the 84 and it will not respond at all like the newer bike: it will not carry the same line, will not be as easy to flick into a turn etc. It is a very quick lesson on geometry. There have been some pucker moments let me tell you.
Awesome training! 👌🏿🙌🏿👏🏿
Great video with useful information. Ty!
On a sports bike lower the front fork spring pre-load and increase the rebound dampening. Great cornering entry, skitterish front end through the corner with some under steering on the exit. Try it.
Beautifully explains, Thank you very much
What a fantastic video. Thank you very much 👍🏻
great job Mike!!
Great video in general, but the part around lean angle and COG is maybe a bit misleading. Lean angle only becomes dependent COG location when combined with wide tyres (e.g. sports bikes) because the tyre contact patch moves away from the center line of the bike when you corner. For something on skinny tyres the location of COG has negligible impact on the lean angle required for a given speed.
Excellent brother! Youve earned your subscribe button push! 😂😂👍👍 Cant wait for the next one 🤙🤙
outstanding! love this vid
Loved the video, ai learnt quite a lot🤝
Interesting, well explained, got a good understanding, on watching video twice.
Please make more videos on given subject, & Aerodynamics.
Excellent! Thx for the vid.
Riding a race bike at insane speeds on a track is on my bucket list!
Excellent information. Well presented. Subscribed. Should be compulsory viewing for anyone who owns a motorcycle. I know, i am 65 & have been riding for almost 50 years. You must understand your machine for it & yourself to perform at the optimum. So much to learn but much pleasure in that. Thank you.
Great video, what field of engineering are you in?
Hi Raul. I’m a toolmaker in Aluminium precast dies for motor vehicle castings. I have a Suzuki SV1000, a CBR1100XX & an 85 Suzuki GS1100G.
Great content! Congrats
Like your videos. Thanks for creating them
Don’t know why you are being downvoted? Loved the information and the format. Thank you!
i would like you to go deeper on the subject , for example spring stiffness, soft vs hard precompression or preload?, dumping etc. Very cool vid many thanks.
Great lesson.
Thanks.
Fantastic video
Dude, those bike models are too cool.
Excellent video! From another Engineer here! Cheers
Thanks a lot for the explanations
this actually helps me with my bike(bycicle)skill thx
Thank you for this information brother. Love from #Sikkim
Really well explained.
Great job, Thank you!
Great video! Thank you ❤️❤️❤️
love he model bikes, great lesson thx.
2:25 Me, even after watching the entire video 😣
Right. Not even a lot of mechanics out there fully understand this too so you can even pay someone to help unless you really want to pay top dollar for someone's time. I'd rather not ruin my bike.
Super Mike ... thanks 😊
Great video TNX !
no. 1k likes!
this video give me so much information ..
i used to thought 'setup' is just the suspension settings
Load the front when making a turn...it helps
This video was for tertiary students. I needed something for primary kids to understand all this
good comprehensive video, the model of the aprilia you have is not a rsv4 tho, its a aprilia rsv1000 2005-2009 (3rd gen) model.. I own a factory edition of the 2nd gen myself, amazing bikes
Great video
Great video, thx!!
fantastic video. It's a RSV though, not a RSV4 ;)
Was looking for this comment! I own a V-twin RSV like this :)
Rsv1000r
RSV 1000 R Factory model too. I know this, because Mike is using a toy model of the life size one sitting in my garage :-)
Good explanation.
Nice video , inspiring 👌👌👌