How A Slipper Clutch Works

[@nasonguy]

Cool. The slipper clutch on my Mazda works a little different. It starts slipping any time I give it more than 90% beans or if I'm going up a particularly steep hill in 4/5th gear.

[@BIGSMOKE-bl2lq]

Those ones are good for fuel economy

[@DasWauto]

This type of slipper clutch has the added benefit of making it very difficult to stall. Good feature.

[@danielbuckner2167]

Haha, I had a 93 ford 1 ton diesel with a slipper clutch that only acted from a dead stop or under heavy loads. Think of all the torque I was able to avoid!!

[@RaglansElectricBaboon]

Slow the oil leaks on to it for less slip, increase for more?

[@poprawa]

It makes intense burnout effects without stupid tires getting all used up c:

[@Redmenace96]

1:40 outstanding footage of rear wheel hop.

[@jimrobcoyle]

Understeer is when you go off of the cliff. Oversteer is when you go off of the cliff at the same place, backwards. 😎

[@pieterv6984]

😄. A very Matt-esque explanation. 👌

[@hoodle58]

Understeer is when you can see the tree you're hitting. If you can only hear it, that's Oversteer (Walter Röhrl, WRC Rally Legend)

[@MX-Drew]

Depends if the cliff is on the inside or outside of the corner. 😀

[@VolkerHett]

Oversteer is when my passenger spoils his pants, understeer is when I spoil my pants 😊

[@willl7780]

Nice lol

[@ronwalsh]

I am glad to know I am not the only one who takes apart brand new items, just to see how they work. Sometimes I even get them back together again.

[@paulheitkemper1559]

"Take a drink every time Matt says "Slipper Clutch."" "Hello, everyone. My name's Paul and I'm an alcoholic."

[@hairyneil]

Mmmm sipper clutch

[@bugjuicer]

slipper sipper

[@EmeliaBelle]

Id rather drink everytime he says clutch

[@paulheitkemper1559]

@@EmeliaBelle I'd hail that algorithm.

[@rollorescue1582]

Looking forward to seeing how you integrate this into the Jag...

[@DarkIzo]

its most likely for the honda edit: dont whooosh me

[@rollorescue1582]

@@DarkIzo ;)

[@incognitotorpedo42]

@@DarkIzo LoL for the edit

[@billbergen9169]

@@DarkIzo doesn't the engine in the honda have a slipper?

[@awo1fman]

@@billbergen9169 This one is adjustable, like he said in the video...

[@Miata822]

Also reduces the likelihood you will over-rev the engine on a downshift. I put a Yoyodyne on my Speed Triple. It's been awesome. That high compression engine would really give you an unsettling jolt if you flubbed a downshift cranking it into a turn. Many years ago *Saab* had a manual transmission that included a *Sprague Clutch* . This device is like a slipper clutch w/o the plates. It is 100% engaged in one direction and 100% disengaged in the other. The engine would power the car forward but immediately drop to idle when the throttle was lifted. In rolling hills it gave an odd sensation of almost flying as you crested the hill and suddenly without the engine noise you were just floating down the other side. Some European EVs give the same sensation when set to make regen only with the brake pedal.

[@nerd1000ify]

@@bibblybobbly9951 Probably one of the old 2-stroke models. Crankcase scavenged 2-strokes cannot easily tolerate being used for engine braking because they get lubrication from the fuel, being spun at high speed with the throttle closed basically starves the engine of oil with predictable consequences. So 2-stroke cars often used an overrun clutch to allow the engine to stay at idle speed on downhills. An aside, sprag clutches are a near universal component of conventional automatic transmissions. They're used mostly so that the car isn't 'jerky' at low speeds- if you've driven a manual with a low first gear ratio you're probably familiar with the abrupt deceleration you get when you suddenly lift off the throttle in first. In a manual this can be avoided by using the clutch, in an auto there is of course no clutch pedal so some other solution is required.

[@Miata822]

@@nerd1000ify Yes, it was a two-stroke but I do not recall the model. This was in about 1980 and the car was not new. not my car.

[@Colt45hatchback]

The trabant 601 also has a device similar to this on 4th gear. Its also two stroke so it makes sense, they do not have an oil tank, its mixed with the fuel

[@mack_mcmillan]

First time I've ever understood a clutch system better than "magic." Kudos.

[@jtsams79]

Stop making consistently good, interesting and amusing videos. Your wearing out the like button!

[@TheRealAlpha2]

They have only themselves to blame if it wasn't sturdy enough.

[@clintonflynn815]

The graphic of the bike leaving the track and bursting into flames made me laugh.

[@liveandletlive2894]

When I bought a clapped out honda one late night in an alley it also had a slipper clutch

[@k20nutz]

A dual direction slipper?

[@croustibat682]

A bit late to the party, this is such a great channel :D I think you can find those clutches on most bikes now. My cheap royal enfield 650 shockingly has one. It probably is the cheapest 650cc bike you can buy.

[@joell439]

....... another episode where Matt explains how technical doo-dads work with just the right amount of humor throughout 👍👍😎👍👍

[@R419]

This was actually super educational, I never understood how manuals can brake without braking till now. My friends tried to explain it, but now I get it.

[@derherr65]

"I did what I do when I get a new mechanical thing: I took it apart to see how it works." I think you are my spirit animal.

[@knightsljx]

slipper and assist clutches are amazing, it should be standard on all motorcycles. prevents loss of traction during hard engine braking, and allows for lighter clutches

[@idriwzrd]

I enjoy the highly accurate and scientific scales on your graphs.

[@gareth6121]

I'm not a huge bike guy buy any means. I fell down the youtube algorithm hole the other night.... found myself learning about the Honda Oval piston development in the 70s-80's & they mentioned using and developing a slipper clutch to eradicate & reduce bad compression spikes on downshifting in the 500CC 4 stroke race bikes and I wondered how such a device worked. thanks Matt for explaining this :D also much enjoying the Jag / Tesla build. Keep up the good work

[@RustOnWheels]

Simple yet elegant mechanical solutions float my boat! I’ve never heard of this before but it’s on my favorite mech solution list from now on.

[@tomconway6808]

Lots of RC cars have slipper clutches too. Since the gears, driveshafts, and axles are typically plastic the slipper clutch helps reduce parts breakages when you hammer on the throttle from a stop since the electric motor is capable of producing a lot of torque.

[@Equine_moon]

I was just thinking last time I fiddled with a slipper clutch was on a R/C car back in the ‘90’s! And that was after I thought it wasn’t needed on vegetarian Jag…

[@TrevorDyck]

Great explanation. It also makes downshifting easier and more pleasant in normal riding on the street.

[@kraorus]

As an absolute mechanical sky-high idiot i can say: that was easy to digest.

[@Myrune1]

That is the best and most concise explanation of a slipper-clutch I've ever seen. Good on you!

[@mikeincinci]

I never released 'buttload' was a technically term. Thanks SFM - you learn something everyday. All hail the algorithm.

[@JasonSimonSmith]

Oy.. wow ! Thank you Matt !! [Preface: '04 Ducati 900ss/sp bike owner] .. always wanted to emulate/maintain period-correct FEEL of the bike.. visceral and exciting ! the End Goal' (something already there in stock form" .. quite a joy to experience..) the DANGER and EXCITEMENT is engineered into the fabric of the bike. .. This video you've shared.. makes me want to install a slipper clutch unit .. and I'll enjoy it more than I thought it would.. enhancing the experience and feel of the ride.. Progress can be frustrating to come to terms with..

[@joeabad5908]

Another learning day for me.. Thank you for taking time to prepare and upload this video

[@BrainsofFrank]

Thank you for the explanation of slipper clutches. I thought I knew about them and how they work but alas turns out I only knew half of how they work. Thank you for the insight and learning of slipper clutches. Now I need to go find my own slippers....

[@spazda_mx5]

I own a slipper clutch but hadn't really thought about how it works, until now. Thank you Matt!

[@skis0447]

Best explanation I've seen so far. Thank you!

[@bradcrossman5068]

Clear, concise. Nicely done.

[@kylegifford546]

You've probably thought about it but it would be cool to see an electric motorcycle build on here. Or even a video about why you wouldn't want an electric motorcycle (current technology, use case, etc). I love the mix of bike and car information on this channel. Very interesting info. I have slid the tail on my bike after a downshift even with slipper clutch. Guess I should be glad it had one and I didn't have a worse scenario.

[@danielbuckner2167]

Samesies on the slide

[@ovalwingnut]

Outstanding description of a force that has kicked my ass on many occasions. Being a neophyte, I was unaware of the slipper clutch. Now I want one for my car! Cheers

[@yoyodynepropulsion.systems]

That is a quality company.

[@Flashbang_Photo]

Hi! Just wanted to add a tidbit, and apparently the thing that actually slows us down with an engine is actually the intake stroke when the throttle body is closed (you can test this if you have a car where the throttle is mechanically actuated) and while the compression stroke should the one that slows us down the most, the decompression that occurs when there's no combustion in the chamber aids the engine in keeping turning, just like a very lame combustion, so it cancels out.

[@fredericrike5974]

All Hail and all that jazz! What university got your tuition, Matt? Most engineers I know couldn't have done that four minute explanation with graphs, details and video support in less than 45 minutes. Awesome, SFM! FR

[@stevejohnson1685]

I don't race, I don't have a motorcycle or ever intend to get one, and I've only worked at the other end of the engine (computer, ignition, timing, etc.), but found this (especially your presentation) to be fascinating and really coherent. Once you get the Jag put together, I will eagerly await your presentation of wheel alignment - should be a hoot.

[@Ebbyman413]

Learn something new every time I watch! All Hail the Algorithm!!

[@rompowertube]

Fantastic video. Had to watch it without sound but still understood everything from the visuals and was laughing most of time 😅🤣👍👌 Thanks Matt!

[@SplitShifter]

YES! I learned something!

[@bugjuicer]

I've genuinely always wondered how they worked, and never could be arsed to pull one apart.. So thank you for feeding my curiosity.

[@ekim000]

Learn something new every episode without fail. Thanks!

[@davypig571]

Thanks for the explain. These seem like a good idea and inexpensive so why are they not on more bikes? Is it only the more powerful ones that get the most from these?

[@JB82374]

Adjustmennt is done by varying the thickness of the steel plates.

[@GunFunZS]

I never realized how simple the mechanism was.

[@rjjablo]

Had one in my Ducati it was fantastic. I needed one in my Yamaha when I thought I was in 3rd downshifting into 2nd going into 9 at Brainerd. Turns out I downshifted into first and it flicked me over the bars.

[@Spazwozzler]

Cool, I love learning new things. Thanks Matt

[@jack002tuber]

Very cool, never heard of this, but I can see the need for it, esp on a motorcycle. Great video

[@BrianHurry]

Thanks Matt!

[@Dug6666666]

I had a Honda VF750F with a spag clutch that achieved the same effect. A less common retro fit though I believe.

[@pieterv6984]

Thanks for explaining

[@JohnShaw26.2]

Was literally looking at slipper clutches for my CBR 600rr LAST NIGHT 😂

[@travislarson5192]

I should not have watched this before work. Was drunk by the 2 minute mark of this video as per @SuperfastMatt's instructions to take a shot every time he says "Slipper Clutch"...

[@alexiselsass1143]

Thanks for the explanation ! I always wondered how they work 👍

[@harveysmith100]

Excellent video.

[@Looo0007]

i know perfectly how a slipper clutch works (as my motorbike has it), but matt uploads it, so i'll watch it.

[@Papa-Bogey]

Short, sweet, and to the point ... with a buttload of information ... Omnes algorithmus salvete ...

[@gabrielmeloni]

Very stupid question that came when you were installing the clutch back(3:28): Do you need to have all the teeth that connect to the engine (the outer ones) indexed/clocked to the same place in the engine "basket"? Can they be out of alignment? would it make a difference? Just sheer curiosity. great video!!!

[@SuperfastMatt]

The outermost one is offset one tooth. I don't know why; it's just what Honda says in the manual.

[@gabrielmeloni]

@@SuperfastMatt Tks for the reply!

[@cedwards427]

Is this the Thomas Pynchon Yoyodyne or the Buckaroo Bonzai Yoyodyne? Or are they one and the same?

[@fatgixxer4147]

Thank you so much! I knew but I didn’t really “know” how a slipper clutch works. Thank you for being the person who spends the money and pulls it apart. Can you do a cable lubrication tool explanation next?😅

[@diyhell8712]

Genuinely interesting and new to me.

[@jareknowak8712]

Similar in principle to free wheel in older 2 stroke engines, like in SAAB.

[@michaelmarusic8499]

👍🏻Thanks for all the good information!!!

[@Beni_777]

I have a slipper clutch in my alternator pulley.

[@johngranato2673]

Great video--------------as usual!

[@northof-62]

Thx for the info.

[@darwinskeeper421]

Somewhat unrelated, but I have a question about the Jagula (Tessuar?). When you originally installed the Model 3 motor/subframe/suspension the rear track was significantly wider than a stock Jaguar Mk V's rear track. Any idea of how you're going to bring the rear wheels/tires inboard?

[@SuperfastMatt]

I'm not, I'm going to widen the fenders by about 2 inches.

[@peterpurpose]

Short, sweet and concise. Are you well?

[@networkmonkey837]

I cant believe this slipped my viewing enjoyment!

[@bake162]

All hail

[@superconfort]

Learned something! Thanks

[@dudiusmaximus]

is it a problem that at 3:23 you put one clutch plate (2nd to last) out of sequence with the others? or is that a non-issue?

[@SuperfastMatt]

That's how Honda says to do it. I'm not sure why.

[@MasterofNoneTV]

I was clutching my slippers the whole time while watching this video.

[@jasoniannone9675]

I don't think I've ever seen clutch plates with intact pads. Every disassembled clutch I've seen was a flat fuzzy mess with some marks indicating where the friction pads used to be.

[@randyfleet9968]

I just wonder if you incorporate an arduino to control engine speed if it would do the same?

[@geoffkeller5337]

Very cool. Thank you

[@danielbuckner2167]

Concise

[@regulatormachine2788]

super fast, as always, thanks for the vid!

[@brandonblair6868]

Matt - on the chance you read this, is there any other provisions that need to be made to that clutch given the fact the engine is now powering a much heavier vehicle?

[@Any_key404]

No outro about pleasing the algorithm? Where even am I?

[@urdnal]

A slipper clutch would probably have saved me an embarrassing accident 20 something years ago that broke my forearm in half. You best believe a stock slipper clutch was a _major_ selling point when I chose my first new bike in 20 something years last year. My downshifts are so smooth these days. I'm sure it's all thanks to that slipper clutch though.

[@Mike_Costello]

Is this how aircraft ABS systems work. They look similar to airliner style brakes. I can imagine that as the wheel tries to stop the plate lifts releasing braking force to allow the wheels to not lock up. The pilot can set the level of auto braking based on landing conditions as well so that would control the amount of force required for the ball bearings to move up the ramp.

[@frogandspanner]

In what way is the effect different from a cush drive in a clutch (as used in my 1966 Norton 650SS)?

[@JohnSmith-yv6eq]

en.wikipedia.org/wiki/Cush_drive There is no complete mechanical disconnect....the rubber (or coiled metal) springs just absorb some of the forces ( "damp" them down) and one of the best illustrations is the coil springs in some vehicle clutch plates......

[@emmajnation-emma]

Next video - How a Slipper Clutch Works but in a drag racing car

[@uliwehner]

exactly. That is the only place i have seen slipper clutches used. then again i am not a motorcycle nerd :)

[@emmajnation-emma]

@@uliwehner same here😀

[@brianb-p6586]

Completely different slip arrangement; the drag racing setup is a centrifugal clutch. Would probably need to wait until Matt goes drag racing (with an internal combustion engine, not electric).

[@smartazz]

All go rhythm 🥁

[@h069401]

Gifted communicator brilliance, slick.

[@jesus_built_my_hotrod]

Cool. I barely understood that but i believe you.

[@estern001]

Thank you! This was a question I've had for a while. Being generally stupid, I understand that clutch + slip = bad smell and dollars.

[@jeronimomurruni]

Why is it called "compression braking" if most of the "braking" comes from the vacuum the engine is trying to overcome when the the butterfly valve is (mostly) closed?

[@fatgixxer4147]

Just thought I’d share this, I’m cruising along on my little 125 cc motorbike, and I thought I wonder if I can “coast” by turning the engine off and opening the throttle? There’d be compression of all this air, and then decompression, as long as I didn’t lose too much to heat should be pretty sweet. I was wrong, after switching the engine off I was slowing down as if I’d just closed the throttle. Normal, then I opened the throttle wide open and the bike was like “bruuuuuuuuuu” and there was a significant amount more braking force than when the throttle is closed. Not sure if it answers your question but I was surprised.

[@brianb-p6586]

Large diesel engines often have compression-release brakes (often known as "jake" brakes after Jacobs, the best-known manufacturer), but correct... motorcycle (and car) engines don't have compression braking. It's called compression braking by people who don't understand the difference or are just being sloppy (sorry Matt... this is one for your next "oops" video).

[@grt49er]

Now I no longer have to fake knowing how that works. Thank you. It’s amazing though how much you don’t have to know if you just nod.

[@BasedBidoof]

cool vid, very informative without being excessively long or full of merch plugs or interaction reminders.

[@kniefi]

I thought this was called "Anti-Hopping-Kupplung" - interesting to see it being called slipper clutch in englischbinstead of anti-hopping haha. Had one on my Honda CBR 1000RR SC59! Was great - before a corner, shift to the next gear and simply let off of the clutch basically as hard as you want to, not much stamping of the rear wheel goin on

[@operator8014]

Sorry Matt, I really don't care about the Jag, but I love these little detours!

[@Mr_Spegru]

Kind of works the opposite way to a plated limited slip diff (on a car, not a bike obv). Balls on ramps!

[@wvuvino21]

You the man

[@ivanvalkanov]

lol just start dumping your clutch and you will get a slipping clutch for free

[@krazed0451]

Unless you're in a car, not in a hurry... Wet, multi-plate clutches are extremely long wearing, even under sustained abuse.

[@sunshine86753]

(laughs in 2 cycle)

[@westoniii]

Lot cheaper to set the idle up 1-200 rpm. Throttle plate not completely shut= less negative compression.

[@JPMergens]

Yoyodyne!! at 40 seconds. Epic.

[@MotorSwapDan]

Dang dude

[@7eis]

2:22 what is love, baby don't hurt me