Yeah the 600’s were just built for power, unlike todays economy bikes. My r6 has ceramic bore liners and titanium valves. They are just built different and more highly strung😀

Longer stroke doesn’t necessarily mean that there’s more rotational mass but it does mean that the piston will have to travel farther and thus faster for every rotation of the crankshaft. More force on the change of direction at the top and bottom of the stroke, harder on bearings etc. Basically, a shorter stroke can rev higher without tearing itself apart.

Yes, small engines are light and can rev high, therefore having high specific output. But the real reason 600s perform so well is for a long time they were the manufacturer's battleground of using as much racing tech as possible to build the fastest, most track optimized, highest performing street bike. Lots of R+D has gone into this class in the last couple decades.

There's a little more too it than just a short stroke allowing it to spin faster. They also have camshaft profiles and cylinder heads designed to optimize airflow at that speed, sacrificing efficiency at lower RPM as a trade off.

Some of the BEST times and most fun riding were on a 600 . after having a 750 and liter bikes. So I had to go back and get ANOTHER 600 sportbike. No regrets at ALL

The Yamaha R7 is not a replacement for the R6 and the R7 is incredibly pedestrian compared to a full blown superbike like the R6 or CBR 600RR

Hey Everyone, thanks again for watching, just want to clarify the ending of the video. Japanese manufacturers are no longer selling their 600cc bikes in Europe due to the Euro 5/6 standards. 600 Sport Bikes can still be bought in the Asian Market, and in the US, you lucky dogs!

600s are like a drug that quickly have you spiraling down the path of obtaining more speed and power. My first bike was a 125cc dirt bike. Then I transitioned to a 250cc dirt bike. R6 was next and not even a year later, I am outside acting bad on a ZX-14. My R6 has by far been my favorite though because the power on the 1400 is just SCARY. It gets to 100 MPH at the flick of my wrist. Super scary. So I'm looking forward to the R7 and possibly that continue to do me some justice. Stay safe out here, fellas.

Zx6r is the most under rated production bike of all time

There's a terrifying joy you get when you see the shift light on a 600RR. Amazing machines!

Long Stroke Small Bore is Undersquare, Large Bore Short Stroke is Oversquare. Most Performance Engine's are Oversquare.

Yes guys, I know the GSXR750 is faster than a 600 sport bike, its about the only exception to the rule. This video is for people who are struggling to understand why bigger engines don't necessarily mean faster bikes, and that's especially true in the case of 600cc sport bikes. Basically 600s are faster than just about any 650 - 750, apart from the Gixxer750. Also, to clarify the ending of the video. Japanese manufacturers are no longer selling their 600cc bikes in Europe due to the Euro 5/6 standards. 600 Sport Bikes can still be bought in the Asian Market, and in the US, you lucky dogs!

The 750 class used to be a lot more popular into the 1990s but once the 750cc Superbike racing was eliminated development was shifted to other classes. Honda stopped making racing 750s except for the exotic models like the RC30 as did Yamaha with their 0W01. Kawaski's ZX7 made it into the 2000s but no one was really buying it as it hadn't been competitive in years. The Gixxer was still available and was so quick that its performance was in literbike territory but it had no real competition. The only 750s left were the sport touring leaning VFR 750. The class just died on the vine

I’ve own multiple bikes and I ended back on a cbr600rr 2008 and I absolutely love. Perfect machine to commute and also fun on the weekends.

The under and over square shape cylinder helped me understand this a ton

The r7 is definitely not replacing the r6. Two totally different bikes

luv it when u imediately showed the zx14r dash while using the word "torque"...this mighty beast is a torque monster. am a busa guy but 14roll like a train.

When I bought my ZX6R new in the UK in 2021 there was only another 3 left for sale I didnt want to start on a 600 but im glad I did they are the best fun.

Everyone had their formative riding experiences on a 600cc. My dad's 2004 CBR600RR was crucial to my riding development and progress to a 1000cc later on. But the 600 is still the most honest and simple yet still very capable.

Answers my questions well enough,nice video mate!

I found this very well done, so I sub'd to see what else you've posted. Thanks for a good vid! Edit: and no crappy background music while you're talking to us!

Sharing some knowledge! Thanks for explaining this! I Feel smarter. Shared with my son too!

I love my 2017 R1, but there's just something about riding my 2001 GSXR-600 that gives me much more pleasure. She's an absolute blast!

Fantastic video, you can tell you put alot of effort into it! You deserve more subs!

Comming back to motorcyling to find out that 600ccs where gone. I was really looking forward to seeing what 600s where about in today's markets.

Know u mentioned it but my l5 gsxr 750 made 140 at rear wheel used to hold with my mates zx10r right up to 150+. Its the sweet spot IMHO awesome bike

That's why I love my Suzuki GSR600, the acceleration for a 600cc is insane, 13.5sec from 0-200km/h and the sound of a high rev engine is just music for my ears :)

My first real bike was a gpz600r back in 89'-90'. , I loved it 😁I was mini Maverick, 2nd top gun 😂👍👍

That was an extremely professional, accurate and technically competent discussion of engine design - one of the best I have ever seen on YT. You directed your words so carefully and with such parsimony that you didn't trail off into the weeds, yet kept it simple enough to be accessible to the general public. Great work!

Well explained mate. Your voice is nice and clear as well, sounds professional...

first time i rode a 600 (2010ish GSXR) i thought it was under powered at first.. took me a second to realize you just need to rev it to the moon for it to move at a decent speed ride SMCR now, single cylinder 690cc totally different beast

Beautifully shown and explained. Good video 👍

Would loved the video to be longer, this is great!

This was the best explanation/demonstrstion I've seen to explain bore/stroke, how the actual configuration applies to actual torque, revs and horsepower. Thanks!

This was very educational thanks !

My first bike was GSXR 600 , loved that damn thing. Might have to grab another

Thank you for your goblin rides talk that was epic

Enjoyed your presentation. Thank you

Brilliant video with explanations made simple for people like me thanks for sharing 👍

It's not the stress that prevents longer stokes from reving higher. It's the speed of combination that prevents longer strokes from reving higher

Thanks again for the info

Great video!

My Royal Enfield GT 650’s engine is so, so different from an R6. Hard to believe both bikes are 600s, and that the RE actually has *more* displacement 😳 this video is great though, I’ve been wondering about this!

Thank you for explaining!

Great video ❤

nice and smooth explanation 👍👍🤙

Great explanation mate

A very Good and informative video

for a street bike I still prefer the liter bikes for not having to down shift to explode in traffic. stuff comes up and maybe 1 gear down boom its all behind you. So a liter or more mine was a Vee twin sport bike it just makes for more fun.

I haven’t heard of Honda discontinuing production of the cbr600rr, I just picked up my 2023 last week

There is a lot more to this equation why 600cc can be faster than 1000cc. Smaller motor means lighter bike HP/Kg, higher gear ratio, both in the gearbox and on the sprocket is also a factor. The fact is that they don't have the same top speed but set up the motorcycle for the lower end of the power curve. The market needs 600cc class that is sporty but don't necessarily have too much power, for people who are new to the motorcycle world, as a experience builder, before they go on a more powerful bikes. I loved my 1978 Kawasaki KZ650, it was a good sturdy bike with not to much power and were excellent as a beginners motorcycle. Then i got a 1992 Kawasaki ZZR1100 and that would have killed me if i hadn't have the prior experience, that bike is fast. And today i own Yamaha R1, 190 Kg and has 160 Hp and i love it...

Good video!

This is a damn good video!

very informative

Fascinating video. Thank you. High toque in a motorcycle usually means more power at lower revs. I have ridden a Suzuki GSX 750 and now have a BMWR1250R which is a high torque motocycle. t has superb acceleration at low revs, and one just cannot rev the engine hard like my Suzuki on the road. It is a different riding style. What is better? The BMW is more relaxed for road use, yet is also fast, but does not have the fun of the Suzuki engine.

Those trucks racing... No words...

I'm lucky to have a 1987 gsxr1100h! Years Back I had a yammy yzf600r, it didn't have much torque, but get the revs up and it's fast! So 20 years on, I can only imagine how these bikes have progressed! I know not to offer them a race!!! 😅😎

The main thing I took from this is how glad I am I don't live in the UK anymore with all those pot holes! 😀 Cool video though 🤙

This is 2 years old and I just bought a 2023 600 so how can you say they are not making them?

This also explains the reliabillity of a 600cc supersport

The primary reason i'm sticking to 600 because of it's fun high reving 4cyl characteristic. Absolutely make no sense going for parallel twin R7.

just 4.3k views??? this vid deserve more views

I'm afraid that none of this is really the case at all. The reason 600's are faster in most cases, is because they were developed to be so. Think of the original 750's - The YZF750, ZXR750, RC30's & RC45's... The reason 600's became so powerful and fast is through development and technology. You cannot compare a modern 650 (twins in most cases) to a high-reving 'Supersport' bike. They are literally from different worlds.

This was outstanding, since I didn't understand torque and horse 🐴 power concerning a motorcycle 🏍️.😁

@Goblin RIDES I beg to differ with you, but the first true 600cc Class sport bike wasn't the Kawasaki GPZ 600R, it was the Yamaha FJ600 (I believe it was called the XJ600 in Europe). When it was first introduced in late 1983 for the 1984 model year it was all the rage for several reasons. First, Yamaha was the first manufacture to market a 600cc middle-weight bike. Second, they took the reliable 528cc engine from the XJ550 Seca and Maxim that produced 54HP, then bumped up the displacement to 598cc increasing it to 72HP. Then 3rd, they shoehorned that engine into a square tube aluminum frame that was originally designed for a 400cc engine that was sold in the Japanese domestic market. And 4th, it was the first fully faired replica racer middle-weight. All those things gave it a tremendous advantage when introduced that took the other manufacturers completely by surprise. I know first-hand, because I bought and FJ600 in 1984 and loved it! It was just as powerful as my old '78 CB750F that it replaced, but was lighter, faster, handled tremendously better, and stopped better. The added bonus was they were thousands of dollars cheaper than any new 750 or larger that was forced to add on the "Harley Tax" to their MSRP.

My 94 FZR600 surprisingly keeps up pretty good with todays 600’s

Impressive production quality for someone with 800 subscribers!

Nice video bro

Okay that was a great explanation of torque.

I wish to have a 600 super sport … but in Germany they are getting really rare since they aren’t really sold new .. the used ones are getting really expensive

cbr 600 RR 2024 😍will be my first honda for sure. Hope this sparkes the 600 market again

What has kept manufacturers from producing over-square, high revving engines in larger displacements? Does the block become too large?

Worth mentioning:0 To 60MPH(0 To 100KPH)is about the same on both the Ninja650 and the ZX-6R-they're both under 4 seconds and above 3 seconds.

Engine torque doesn't matter when pulling heavy, just wheel torque. So you can replace a 200 hp truck engine with a 200 hp 1000cc and with right gearing the result will be the same. Regardless if you are pulling heavy or want to go fast power is the only thing that matters.

All R bikes rews high as they are built for a high degree of tune, small sylindervolum can rew more as they has lighter parts, max tourque is on the rpm sylinder-filling are highest, Max hp is at higher rews with less sylinderfilling but incresed numbers of combustions/second, Max hp is at the rpm where sylinder-filling drops to a extend so power decrese

Had a dinosaur built UK origin 600cc Norton in the classic era. Lived in a large southern university town and consistently destroyed everything in the quarter and on the top end. But now I like Triumph triple liter bikes. I still like quick. -Matt’s dad

Getting me an R7, soon. Waiting on it at the dealership.

You've completely skipped the number of valves allowing the air-fuel mixte to go inside the cylinder of two vs four cylinders. The compression ratio is also higher for super sports bikes.

600cc are ending? I got a 2023 ZX-6R... love it with ALL MY HEART. nice video too. my bike is a 636cc though. Maybe that means it will never end?

It's really more so the fact that 600 is a limiting class in many locations whete license type and/or taxation changes, so they squeeze as much as possible from the 600 as it's the biggest that many people can go regardless of price, so they shove as much engineering time into those 600s as they can, as opposed to 650s and 700s, which won't sell as many units, and people that buy them could step up to a 1000 if they really cared about power that much.

Guys this is a very random question . But in the part of video where trucks were racing why was there one side getting up ? Does it have same concept as bike doing wheelie but trucks do a side wheelie ?

So it’s all about the way the engine is built and it’s desired purpose.. So what about a 650/700 with a shorter stroke, more width - built for rpm. Then it would be faster right?

It's piston speed, combustion could only happen so fast, after that, you'll loose torque and just keep revving.

What about the Triumph Daytona 765 or the old Daytona 675? I don't think is about cc...

What are manufacturers building in lieu of 600s?

Great and concise video

Today I learned that tractor trailer drag strips are a thing

Fun is relative. Fun where? Lots of fun on the track where you can stay in the very narrow, top end power band. For the street, torque and a wide power band is king.

There were middle weight sport bikes before Kawasaki 1985... the GSX 550 came out before that and all the manufacturers had mid sport bikes.

Fuel economy is kind of important.to.me these.days so which.is.best.in that regards? I.always.fancied.a 600 sports bike though but I get headaches easy these days so a.high reving bike might not.be.for me now.

Daytona 650, plenty of torque, 14,000 rpm and 114 bhp. They do go well! Maybe not the quickest but certainly no slouch.

6 and 7 great median of power to weight ratio. 900 or above your getting into beast mode

if a long stroke engine makes more torque could you just use a CVT transmission to deliver peak torque constantly would that be faster than a higher HP but low torque engine?

Had a zx9 . Very fun in a straight line but quite like a 70 s dodge, it will stop if you try and kinda corner ok . 11 fractures collapsed lung and bruised heart later , I still miss my zx9

Bought 1985 ninja new in 85, best bike i ever owned. Have owned 20 plus bikes over the yrs. But had more grins giggles and out right fun on the baby ninja. I am smaller guy 5 7 130lbs, in its day that bike would run with 750s any where but top speed, but only a few mph difference.

3:13 lengthening the piston will not change the stroke. The crankshaft is what determines the stroke.

Had an R6 and an R1. R6 was faster to carve with forsure. But for most riding I did R1 was more enjoyable. It actually had a mid range, and who doesn't like more power period :) and the R1 was much better for a passenger

Love bikes and had them all my life. My dream would have to be a custom bike as at 6'6" nothing is ever comfortable.

Most awaited question solve.

landscape of the marketplace changing. Most likely going to see manufacturers selling only offer race kits barebone 600's for track/racers or it might just disappear altogether and usher in a new era of racing to fill in the middle class before going to leader bikes