He gave me $5 to subscribe, you lost out

Yup, and I'm finally committing! Watched enuf vids to like em all

So true @Daman Jeet. This guy is on a whole different level. Even if throws out random "nerd" stats as some would say, everything he says and represents is on point. Nice video @fortnine

I make it a habit when the first thing they say before the video even starts is to subscribe and like the first thing I do is dislike

@@dhruvadj agreed bro

My entire riding time over 40 years only had one tyre requirement.................Must be cheap.

That describes all the girlies in my neighborhood.............

@@jcwoods2311 Boom boom tish.

Most people have no idea what tires are for, much less what makes a good or bad tire.

I think that was true thirty years ago. My last three motor vehicles, car and two motorcycles, have all had good tires. Maybe not the ultra premium stuff, but good tires.

Charisma

Wow you really fail as a engineer huh, couldn't recognize that the linear graph is of a electric motor. And that what he said about tyres is bs

Tell us MORE, ubdhav!

@Adrian Dobre Huh, an engineer that can’t spell, ‘Charisma’ You can declare anything you want in text. Doesn’t make it true.

​@@udbhav122351d you spelled tire the un-American way, opinion disregarded

Bingo.

This is true for cb500f and e, for example

Aw shucks, consistent and predictable power. Boring. /s

Not quite. Reviewers are almost invariably biased. In the Uk, if Triumph makes a bike with a smooth torque and power curve (lets say speed triple) it is a refined, smooth and linear engine. When kawasaki make a Z900 with an immaculate power curve it "lacks character". Best advice is, as Ryan says: try the bikes out because 99% of reviewers speak bullshit.

Ah, the age old problem of "reviewers" aka advertisers. More often than not any "review" you see will have loads of positive aspects and praises of a product with just a dash of the negative sides. Some may even feel like tech sheet readouts. In these cases you have to remember that they are very likely getting paid directly (sponsorships etc.) or through referral systems (sales volume). So if you come across with "reviewer" which always ends with a positive image of the product, you know that the person is financially constrained in their "review" and you should mainly focus on the negative sides of the product brought up. These "reviews" are one of the reasons why user based content has been in such a high regard, people want to cut through the manufacturers' and "reviewers'" bullshit and know if the product is actually any good.

I swear man. Had absolutely no clue about the relation between torque and hp until Ryan explained. Ryan F9 the Bike Guy

the board of education would've fired Ryan F9 before the end of the first semester for being an entertaining teacher who connects with the students. At least in my experience.

Completely agree.

What kind of English teacher would it have taken to get you to learn the difference between an ellipse and a semicolon?

@@slappy8941 I didn't even knew what an eclipse was until you mentioned it.

The video also deserves a follow up on how difficult it is to have standardized engine performance graphs for objective comparisons because different dynos have different accuracy/drag/cooling etc and the performance of an internal combustion engine at any given time can vary substantially with atmospheric conditions. Some people go apeshit on internet forums comparing bike/car A's dyno to bike/car B's dyno to establish which is superior based on a graph from dyno model X tested two months ago in one city and dyno model Z tested last week 3000 miles away, none of them stop to realize that each of those graphs could be like 5-10% off easily. Some manufacturers do provide the full engine performance graphs, for instance Ducati and BMW do, but they are the "indicated" performance graphs (basically the theoretical ideal performance expected based on measuring/simulating the gas inside the combustion chambers) not actual print outs from an engine dyno test, largely because there is no universal industry standard equipment and test conditions for that so that could easily be fudged too.

torque vs horsepower is a fallacious arguement since they dont oppose each other, you really want to get the most of both.

honestly torque doesn't come into play unless you are trying to move heavy objects. when it comes to a bike hp is all that matters. when it comes to a semi torque is all that matters.

@@leetucker5788 no. Power is always the number that matters (for engines): torque can be converted, a gearbox, a torque converter, even the wheels itself does nothing else than converting revolutions and torque. But the power will be the same on both ends. when you put all your weight (i take mine ~100kg) on a lever of 1m, you are generating 1000Nm of torque! but even the engine of a 125ccm-Bike (~10Nm) will (with correct gearing) turn you to nuts, because it has way more Power!

​@@Coolgamer400 Except you're comparing static torque vs dynamic torque (and static torque, because in car or a motorcycle both are involved). That's useless comparison. You can read up on that. You can also read up on the issue of torque conversion. Yes, you do manipulate torque with various systems - like torque converter, gearing or wheels. However, all those elements are limited by other practical factors. If you go for really extreme gearing you'll be restricted to extremely slow moving vehicle. Torque converter's torque multiplication is limited by among other things size of it - and generally speaking isn't most efficient way to doing it. Similarly manipulating torque through wheel size is limited by shape of vehicle. That's why torque as maximum value is important, but more important is torque curve. If your engine produces 10 Nm of torque, it might be in - say - 6000-6800 RPM band. If that's the case to maintain acceleration you need to constantly shift gears.. but you can only have so many gears (since it's simply limited by physical space you have for your gearbox). More importantly you lose time with each gearshift as well. In other words: the higher your engine maximum torque is, the flatter the curve and lower revs you get (close) to the top of it, the less compromises you need with gearbox and wheels. Power is important as well, and honestly all factors have to be considered when 'judging' any given drive train (since engine is only part of entire system). Still, the point of start is engine, to which you adjust all the other factors to achieve desired results. Choosing wrong engine for application is just idiotic.

You got one yet?

@@rhythm242able no:(

@@philj212 do it! buy the cheapest working one you can find 👍

@@rhythm242able wholesome

Except for the fact that there IS no "current" RPM or speed, because, by definition, it has to be in a constant state of change (i.e. INCREASING) or there would BE no sensation of acceleration.

@@michaelscott356 I get what you're saying however you can determine instantaneous acceleration for any combination of rpm, gear, and speed at any explicit time. Otherwise you wouldn't be able to generate a plot of acceleration from 0 to top speed. I.e. just because everything is changing doesn't prevent the ability to measure it or feel it and learn to keep things in x power band with y throttle to power out of a corner predictably.

You can't make acceleration comparisons only based on power to weight ratios. Aerodynamic drag is an important factor too. At high speeds that 30 % could be a lot less or a lot more, depending on the shapes of the bikes and riders.

@Janne Laakso I agree, go fast enough and drag literally and figuratively becomes the great equalizer.👍 Having said that, of course I can make acceleration comparisons, by keeping it basic. The whole "assume a frictionless spherical chicken in a vacuum" thing. Otherwise we get into wheel mass and radius, drag, etc. Even then our model won't be 100% without some empirical fudge factor. Getting up to typical road speeds, wind drag with similar styles of motorcycle isn't the dominating factor. That's where my head was at so I ignored it. Already near highway speeds and faster then yeah it would definitely matter if one chicken was more slippery than the other. 😉

If what we feel is acceleration, and acceleration is proportional to torque / moment of inertia, the latter of which is constant throughout the RPM range, does that mean that we should look at the torque curves when comparing the enjoyability of two bikes?

Who needs GoT when we have the Joffrey of Motorcycles making us eat cake? Haha

And that is where the beautiful part ends

Yes

Inte ens lite förvånad att det är du som har skrivit den här kommentaren haha

LOL

What do you mean overweight, I only have a dry weight of 45Kg (99Lbs),

Bart Bevelander technically 98 percent of your body is water, so maybe more like 2 pounds

And after taking a dump, too. And no heavy thoughts.

Freedoms Patriot 60% Of body weight is Water

Walter Wilkins If you really want to tighten up your numbers, get rid of pounds or kilos, use Stone... I weigh under sixteen and a half (16.43) stone..... yep, I’m one skinny bitch at 230 pounds.... uh, I mean sixteen and a half stone....

Or, THAN many realize. :)

i mean im pretty sure he has a physics phd so that helps alot

@@burdazza2711 I dunno, theres far too many 'smart' people that should know better that insist that you need back pressure in an exhaust or you lose power...

Won’t always be the case. Which is why research is important.

An

@@kaelshade4275 :)

I'm getting PTSD remembering my days struggling through highschool physics

@@kaelshade4275 fixed :)

I see what you did there, nice job!

Glad I'm not the only one feeling this way... I almost want to go back to the days when the only motorcycle videos I knew existed were motovlogging ones where the "hosts" were seemingly dumber than I... but then, I won't get to watch this amazing channel, so concessions have to be made.

We don't all have to be as smart and clever as Ryan FortNine. We just have to enjoy his antics and understand the points he's making. I don't consider myself dumb or inexperienced about motorcycling, but I can readily admit I've learned a lot from Ryan's videos while being simultaneously entertained!

@@hungwasson1399 Completely agree By the way, I've seen some videos of Ryan making fun of himself where he had clips of him as a "stand in" model for motorcycle gear - jackets etc. - do you know, did Ryan used to work for one of the motorcycle retailers? If so, which one? I'm curious.

That is funny, LOL. R

Yeah but there were mistakes. Don’t believe everything you see blindly

Snap!!!!!

same

Ryan F9 & TheMissendenFlyer both upload today is a good day

Haha 😂 same here

slowest click of my life when i see a fortnite video alert

Recommend 44 Teeth if to your taste

Same! I'm not even that much interested in bikes!

And took a little shot at Harley owners, which is always appreciated by the majority of bike owners (who are not).

In her? You guys have funny sex 👌

That's not a girlfriend, that's a narcissist.

FULLCIPHER That was me with pokemon when I was little.

That's why I bought a Moto Guzzi V7, put a lot of money into it trying to fix the cheap engineering, then sold it after six months. As the new owner rode away, I thought, "man, that's a pretty bike."

@@johnsumser9743 That is me.. :)

this shoud be the standard for everybody

That’s estrogen talking.

This isn't algebra. It's physics.

@@anthonybluhm4724 it's an algebraic equation involving physics. It absolutely is algebra.

@@louisrussell3247 True, the algebra is inherent in the physics, But this is all about physics. It would be like saying poetry is just the alphabet.

@@anthonybluhm4724 algebra is math, a tool used by physicists to do physic stuff

Spreadsheets! You can use basic algebra to do spreadsheet formulas.

Coming from Stuart Filis video as well this needs to be addressed and any mistakes made will not be the end of anybodys career but for the betterment of the culture, they need to be corrected if need be. Thanks.

@@funkthat Agreed. Ryan does a lot of great work, but we all make mistakes. If he made one here, he should acknowledge it, apologize, and we can all move on.

Me 2...It can't be wrong, no matter the subject.

trusss

That’s a really boring comment. Someone makes it on every page.

@@daytonasayswhat9333 Ok boomer

Kamil Starikiewicz so watch the channel and enjoy it and don’t make a stupid comment about it.

after riding the 09 for 8months on a daily basic and roughly 19k KM. I'll still get shocked by the power at times. and its not in A mode XD

I’ll second that. Great bike!

Funny enough, the fz-09's dyno graph actually looks like the 3rd graph in the video. Awesome bike. www.cycleworld.com/2015/12/09/2016-yamaha-fz-09-naked-motorcycle-dyno-run-video-and-performance-chart/

it's hard not to respond to the name "liberalsarecriminals" without going ballistic , but I won't cuz that puts me in the same class as you. I guess I'll just keep thinking about stuff with an open mind

Computer parts manufacturers have been caught using sweet tech deals for certain users to post positive content and reviews for their products on many forums, it wouldn't surprise me if motorcycle companies did the same.

forum yes amazon dont trust.Too many fake reviews at amazon in fact there are companies selling this service to others fake reviews.

Think you might want to watch Stuart Fillingham KZfaq video on these tyres, totally different perspective with thorough research, hope this helps. 👍🏻

Bullshit! front tires have 3mm, REAR tires have 5 so you were comparing front and rear. Pirelli has factories in different countries Brazil, China, Germany etc. same tires. Sloppy "research" You should be ashamed Fortnine! See this video kzfaq.info/get/bejne/j7-Iq5ygzLeUnIE.html

Re the tyres, what a load of bollocks. Comparing front tyre tread to a rear tyre tread and factory that makes crossplys to one that makes radials. Investigation powers of a shopping trolley. Never let the truth get in the way of a food conspiracy theory eh!

TMF, Ryan does a lot of great work, but he might be way off on the Pirelli tires in this video. You might not want your approval stamped on this one.

...hmmm...and I thought you were one of the smart ones...

What you getting then?

Luke McGowan... you may laugh... its a Zontes Phantom 250s. Was £3k new but got an ex demo model direct from Zontes UK, with 270 miles on it for £1500 with MOT and service, delivered to my nearest dealer about 40 miles away. I’m getting it next week... just to get me back on a bike again after 10 years... will have to see where we go from here. Cheers.

cosimo ricci at the cheap price of $800 or $1500 of you add a tuner..

A lot of the dyno numbers and charts thrown out by aftermarket parts sellers are pure bullshit, just like their claims of gains.

Without tuning the ECU or other things, horse power gain in nothing more than pure marketing smoke, there is no proof that it automatically means more power, in fact it is more probable you lose than gain, so those graphs may also be a deception

@@alexduey7868 The guys commenting on your suggestion missed the point. Sure, there might be a 5HP difference ehre or there, shure it might be total BS. who cares. at least we got to see a 'relatively accurate' graphical depiction of the power/torque curves, which was what the OP intended. It's a lot better than seeing a 'peak' number.

adri dell with an aftermarket exhaust your engine will run with more air

callback to the Ural vid, called it!

You called?

nyetloki nyet!

Cries in corona

This comment didn’t age well.

Judging by the pfp, I seriously doubt that you're joking.

@@paulcarmi8130 maybe it reflects equally on the school. :-) but surly I learned something new today, about the ideal torque and HP curves.

How many classes did you take regarding motorcycle companies?

Just "scientific" does the job. (don't fall prey to the old American theory that "more is better", especially when it comes to syllables! :-)

I think Ryan summed it up perfectly at 09:34: "...salesmen are salesmen, so just go ride". For most motorcyclists the choice of bike is an emotional one, with a little economics thrown in. So what the thing feels like, on the road/track/trail and beneath your backside, is probably the most important consideration.

Torque and horsepower are the same on a graph at 5252 rpm. Race engines want high power just below the redline. Street engines want lots of torque from idle to 30 mph, 60 mph and to 80 mph. The power for a street engine near redline rpm is useless, especially if it gets 5 miles per gallon or less to do it. See a horsepower and torque graph for the new Goldwing- very good for public roads, for a high price.

Torque tells how much work can be done. HP how fast work can be done. Electric motor gives max. torque all the time from 0 RPM to max RPM, but zero RPM work will never be done.

"But muh torqueeeee !!!" always seems to scream louder than any sane explanation.. cant win all battles

Torque is just a fancy lever. Alone it can't do much.

@@XtreeM_FaiL it is funny that Harley Davidson advertises torque, and everyone else advertises horsepower. To me it is more about price, weight, reliability and comfort. I am most attracted to the inline 3 Yamahas, but own an older Kawasaki ZZR600 inline 4 for 75 mph, and a Honda Shadow 600cc VLX for 60 mph.

This means that 5 kW of power (peak) is dissipated into the drive train of a Ninja 400. That's a lot of heat and noise

This is the only channel that I go back and watch old videos multiple times

What bike did you buy?

@@tomraider099 I already had the classic Royal Enfield (it was my brother's and I barely used it). But then I bought the Himalayan(supposed to be the best Royal Enfield out there). But honestly both of these are equally bad. I bought them because of the brand's popularity in my country(India). But after seeing the motorcycle world with a better view(thanks to Ryan) , I'm planning to sell these and purchase one of those lightweight suzuki trials or Husqvarna's(Because I'm a skinny 18 year old).

@अल्ली X ahh a man of culture i must say. . .

@अल्ली X it's fun to ride that in congested cities like mine(Ghaziabad, U.P.).

Unless the front and rear rims are different sizes, it is an extremely poor decision to manufacture or require different tread depths front and rear. Imagine if a 4wd or AWD did this? Yes, most supercars have different tire sizes front and rear..

@@hillaryclinton2415 The front and rear tires are, in fact, different sizes and it's fine for them to have different tread depth. The rear tyre being the drive tyre gets a deeper tread because you want it to have more grip for launch. Also the tyres having tread depth being a bad thing was never mentioned or even a point in Ryan's video.

There’s more to it than that. Ryan also compared an expensive German-made radial to a budget cross-ply. Yes, they’re both Phantoms, but they‘re intended for classes of bikes with massive differences in weight and horsepower. Not to mention tube VS tubeless rims...

@@hillaryclinton2415 wrong... uneven wear due to more drive from the rear... bikes aren't AWD... AWD/4WD cars are.

​@@Strideo1 Obviously you know nothing about thread depth and grip.

Exactly! I was surprised he didn’t go there at the end with that constant torque graph.

wrong, electric motors have the peak torque at 0rpm, the faster you are spining the motor you feel less torque, the power delivery is similar to a capacitor

Recorded exhaust sound?

@@Erickzy This is not true of brush less direct current motors but I dont know of any EVs using those.

@@Erickzy Not true, electric motors maintain their torque across most of the rpm range than drop off at the end. If you imagine it graphed it is a horizontal line then it drops off at the end.

And even I, over here in Germany, the country full of people thinking everything is free on the internet, feel guilty, too

Jajajajajaja laughing from Spain, country where we pay something called “digital canon” a pillage that the government made for “we the people” to prevent piracy: Disc recorders: 0.33 euros. Specific disc recorders: 1.86 euros. Multifunction printers: 5.25 euros. Monofunction printers: 4.50 euros. Single recording discs: 0.08 euros. Discs that can be recorded several times: 0.10 euros. Versatile non-rewritable discs: 0.21 euros. Versatile rewritable discs: 0.28 euros. USB flash drives and similar: 0.24 euros. Tablets and mobile devices with touch screen: 3.15 euros. (iPads yep) Mobile phones: 1.10 euros. External hard drives: 6.45 euros. (Doesn’t matter capacity) Internal hard drives: 5.45 euros. We see it like a piracy license, so yeah tell me about free internet. We don’t pay anything else. We watch everything else one Black Pearl hit away.

Don’t say that.

@@dodge20071 Well, this is unusual 😶

the content is free to watch but they are making money from it. Do you really not know that?

अल्ली X that’s ok. Love is love

wtf dealerships are you going to? idk about where you are but i haven't been to a single dealership here in Australia that doesn't offer test rides. How the hell are you supposed to know if you actually like what you're buying if you don't test ride it??

@@lalnablehector1285 welcome to the USA, where you can walk into a dealership and be told there are no test rides allowed, or see the salesman clipping his nails on his desk instead of getting up and asking you if you need help (actually happened)...

@@lalnablehector1285 Here in Belgium the strange thing is to find a dealership that allows test rides, they often don't even have bikes to test and if they have its only for the most popular models, so your choice is extremely limited, you either ask a friend or someone to try their bike or you have to rent...

@@adridell what the hell sorta dealership is that?! with that attitude they don't even want to sell them by the sound of it.

@@lalnablehector1285 Belgium is a very small country with less than 500.000 registered motorcycles in total, there are very few official motorcycle dealerships because it is very expensive and there is not enough demand, it's often independent motorcycle repair shops or other that work in cooperation with big companies like yamaha or honda and can get official bikes for display and parts for repair. There isn't even enough demand to have an official dealership so even less budget for test rides. That is just the reality of it, doesn't mean there is no way to test bikes its just not as easy, it's not really their fault if there is no profitable bussines, that unfortunately how the world works...

Interesting!

True, examined and explained in depth here: 9:30 kzfaq.info/get/bejne/j7-Iq5ygzLeUnIE.html

Roast me. The imperial system deserves no mercy. ~RF9

?

Uncle Stu should probably work on his education. If he has the time to complain about his betters, he has the time to work on his own issues. Of course, if he's got enough time to reach Fortnines level of expertise...

Who?

@@BeeBait might want to do some research on your own since fortnine's is dead wrong.

Not quite. Torque tells you the potential work that can be achieved. Horsepower just tells you the potential rate by which that work can be achieved. Potentially. What matters is what can be achieved, it's rate of occurrence only comes after that first initial delivery of TORQUE to act on propelling an object from stationary. Potential to kinetic energy.