Rekluse Auto Clutch Explained

Dirt Bike Test's Jimmy Lewis explains the internal function of the Rekluse clutch and gives some insight on tuning options of the EXP disc.

[@badgerbait8351]

Been riding just over 40 years now and recently riding with a couple of very seasoned and capable riders who have both gone to the Rekluse over the years, so now it's my turn. I went from a Beta 300 back to the YZ250X...without a starter, so I'm hoping this helps fill that gap. Great vid with reassurance!!!

[@johnhunter8753]

Yet another awesome review from you guys. Really impressed. Thanks so much 👍

[@irishflyer6377]

Thank you for a clear simple description. Great help

[@codforlife]

Thanks for the video. I'm still confused about the pro and cons of different spring configurations. Thanks 🙂

[@iamandreja]

Thank you for this video, everything is perfectly clear.

[@delcotelcomputersupport3897]

I have installed 3.0 on my Harley sportster on a 68,000 KM on the clock.. i just hope i had from the time I bought it. Well explain video good man!

[@chadgiesler5156]

Basically it works like a snowmobile primary clutch via the weights and springs. Pretty cool set up.

[@monton5440]

best video on youtibe for the exp disc and for rekluse !

[@scottlee2753]

Thanks for the explanation Jimmy. I ordered the CX DDS for my ride. I wondered which springs would be best for trail riding. I heard the CX comes stock with heavy wedges but I don't know. I did email rekluce about the wedges so we'll see.

[@hansschweikert9153]

Fantastic explanation! Thank you

[@patrickwatson4058]

Good video Jimmy!

[@coldsteeloffroad]

Fancy centrifugal clutch. As a MX guy, I never thought I would consider running one of these, but the ability to completely eliminate compression braking on my 4 stroke has my curiosity piqued. Suspension works SO much better when unloaded, and you can still use it like a standard clutch 👌🏻

[@spoderacing3910]

Just installed the radius x in a 21 crf250r. To get the installed gap I had to tighten the clutch cable almost to the end of its limit on the cable itself and at the lever. Switched to an aftermarket lever with a longer adjustment screw for more adjustment during riding. Also per the install diagram they show the throwout washer going on top of the throwout bearing which in the 20-21 models the bearing is pressed into the pressure plate. It has to be installed between the clutch lifter and throwout bearing. I verified this by speaking to a tech at Rekluse. Just wanted to post this in case someone else ran into these issues on their newer model crf250r

[@janshah6749]

thanks...very informative.

[@jonoj7666]

Thanks very informative 😊👌👍

[@Ichogil]

Hi Jimmy, once the clutch plates wear out on the RadiusX, do you have to order them from Rekluse all the way, or will the manufacturer cluch plates work? I have a Royal Enfield Interceptor 650, in India.

[@fullthrottleahead.]

Thank you so much!!🙏🏻🙏🏻

[@paulc3517]

Great video

[@dmpeg]

I've just installed an EXP 3.0 on my Gas Gas EC 300 2 strokes. Still tunning it. Only one ride, everything was all set as manual recommends. I was surprise with the very low engagement but soon enough I hit the first trail I noticed some things: 1. very early clutch squeal (I'm using Motorex 10w30 gear oil - full synth); 2. I was riding 1 shift down and in higher RPMs in places where I used to be in a higher gear and in lower RPMs, maybe I was wanting to avoid clutch squeal and slipping because higher RPMs provides a better bite of the clutch and that's because of the design of the rekluse itself (centrifugal force to expand EXP disc); 3. my bike boiled the coolant very early than before. That was odd; 4. Clutch lever feel was different when I wanted to override Rekluse, I could not managed to adapt to it yet. It was harder to control the front on low speed 1st gear steeper hills where before I needed to slip the clutch to control power output on the rear wheel; Well, more tuning and testing to be more definitive. First step is to change the EXP springs do red (soft) and check everything again. Recheck my air filter to make sure it's not related with the overheating. Maybe change gear from 12x48 to 12x50. One thing to consider, We use to ride here very tight wood trails, 3rd gear maximum...

[@endurofan9854]

dmpeg thats the fact in semi automatic clutch... low rpm less hold so it ended in using it more in high rpm than usual with the manual clutch... guess u had more fuel consumption too

[@gajjalamohan7552]

Please let me know if its available for royal enfield interceptor 650

[@RudolfDiesel369]

good video! thanks!

[@michaelvickers89]

Great video! 👍

[@DirtBikeTest]

Thank you! 👍

[@je4266]

Thanks, I’ve been riding for a while but I bought my first 4stroke, 450xcf is a beast in the NE woods so I’m debating a recluse...

[@Dingbobber]

Do it man. It really is fun. Lets you really push yourself to the limit

[@je4266]

Yeah I got one, now need to find the time for riding,

[@hectorcervantes5260]

there is a guy in a video that shows a rekluse with some rubber parts all shredded with just 6 hours of driving and I think is the most advanced,any opinion about it,thanks in advance

[@dougmcgill9294]

11:08 Rekluse says the Radius X clutch feel and modulation is the same as if it were stock.

[@user-nsixfour]

So basically it works like a dog clutch in a cvt transmission?

[@user-nh8tc9po2l]

do you have picture from the different springs and wedges too? is it possible to combine springs and/or wedges in one/same system too or only one kind of springs/wedges? is it possible to coat the rails with specieal coating for less friction? does it work wit more faster reaction? the rings are they made from steel or aluminium? the fastner made them from steel too? asking if it possible to the the EXP ring lighter and inner less friction for higher reaction of the heavy system;)

[@DirtBikeTest]

They all look the same, just slightly different colors. The rings are aluminum and the coating is already on the wedges.

[@dekancaine]

U seem like the man I need to talk to. I got a buddy just got a 2017 crf450. Has a cx rekluse. I have a 22 crf450. He don’t want it. I wanna try it. Rekluse says it won’t work. But legit they look the same. The clutch setup hasn’t changed much from what I can tell. Other than just a extra plate

[@nicolabetarr96]

Do you have any tips for making the clutch lever softer? I have the fully automatic clutch on a ktm exc-f and some times, especially in the sand I need to use the clutch, but with this system the has become very hard to pull.

[@Jimmy_Lewis]

This can not really be changed easily unless you do modifications to lever position and master cylinder piston size. And if you are trying to pull the clutch when the power is on you have to overcome the additional force of the Rekluse pressing on the plates.

[@deborasilver2378]

Lovely video,also well explained. Just one thing,does it loose engine brake? Thanks in advance.

[@DirtBikeTest]

I can depending on the setup, basically making the bike freewheel if it is set to disengage early.

[@RIPPERTON]

On steep enduro descents, if you lock the rear wheel momentarily, the auto unit will collapse and it will go into freewheel or neutral. You just have to blip the throttle and the auto unit will expand again and go into engine brake.

[@cesaraugustosandovalsanche8959]

Hi Jimmy! I just bought a bike with rekluse. Is ther an esay way to transfrom this type of clutch to manual? Thanks man!

[@DirtBikeTest]

Does the lever not currently operate the clutch so it acts like a normal clutch if you want?

[@kevindonohoe621]

Hey I got a question?? I bought a 2013 Husaburg TE300 that the previous owner Installed a rukluse auto clutch core exp and did not give me any of the parts that he replaced when is stalling it. Question is what do I need to do to go back to a manual clutch??

[@DirtBikeTest]

We will be answering this question on our Tech Talk Taco Tuesday Podcast!

[@kewintaylor7056]

Its similar to centrufugal clutch in moped....but larger and better ...👍

[@callumhays5914]

Can you run the exp disk with stock clutch basket and all the rest that it is stock and it will work?

[@FWCaptain-kv6sm]

no you need the whole shabang,1000 bucks

[@deadprivacy]

@@FWCaptain-kv6sm jesus, they are making some money on these thats for sure!

[@FWCaptain-kv6sm]

deadprivacy ya I just threw my old clutch back in

[@grecoconduris6716]

Nice video, thanks for the explanation of how they work. Being new to dirt biking I would like to why you would want one of these? Do you still need to use the clutch from take off or to modulate power? Is this purely an anti stall feature?

[@DirtBikeTest]

We'll answer this specific question tonight on our live Facebook show @dirtbiketest. If you miss it I'll try and type an answer tomorrow!

[@grecoconduris6716]

@@DirtBikeTest Thanks for replying, Ill probably miss the live feed due to my location in the world.

[@grecoconduris6716]

Dirt Bike Test thanks for answer I saw it on the KZbin post of your live feed

[@endurofan9854]

well it is really an anti stall cause with it the crank got less weight to turn... unlike the manual, in neutral, still the primary driven shaft is turning along with the crank.

[@rexonmarkreyes7947]

I'm concerned about loosing the engine brake... is that true?

[@delcotelcomputersupport3897]

Engines brake still works if your RPM have enough to enchange rekluse . Lower thatn 1100 rpm its like newtral mode

[@joshuahape8639]

I have one on my Kx250 and going from 2nd to first I can still feel the engine brake. However, I bought mine with the clutch on it so I have no clue what my tune is.

[@franzharker9821]

Do you even use the clutch lever for anything? Maybe just stopping and take off

[@DirtBikeTest]

You do not need to, but you can if you like.

[@gussrestu]

thanks

[@bigmikex11]

Hi I'm trying to get an auto clutch for my wife's yamaha fazer she has a bad left hand But there don't list one for it Would it be possible for you to send me the dimensions of the clutches you have to try and match one or I'll send you my dimensions to try and match one I have no where here in the UK to match one thanks Mike

[@DirtBikeTest]

Dimensions are not the only concern, rotational speed is very critical so each one is very unique.

[@bigmikex11]

@@DirtBikeTest yes but you get springs to adjust pressure on the clutch pads which should help with that

[@frostcold81]

Essentially

[@270raptor]

My clutch chatters at low rpm and engagement, in the medium setup. Core exp in a 19 yz 450fz . Any tips ?

[@DirtBikeTest]

Is it the clutch actually chattering or is it the chain slapping? This noise is often confused. If the clutch has been glazed (slipping too much, got too hot) this can also happen. So depending on instance new plates might be needed.

[@270raptor]

Dirt Bike Test cutch is new , only does it at the start under load , I might put all the soft springs in and try that ?

[@DirtBikeTest]

Fast Eddy it will catch sooner and likely help.

[@scoremxcom]

Would you race motocross with this? 2 stroke or 4 stroke? isn't it true a 2 stroker racer bike should NOT idle.

[@DirtBikeTest]

Yes and we have raced MX with them. Idle on a two-stroke is a preference, not a rock-solid setting. I prefer my two-strokes to just barely idle, gives better off-throttle traction.

[@scoremxcom]

I tried the EXP core 3.0 ktm 250sx and it felt like someone was feathering my clutch for me. Starts seemed ok, but I think I can now tell who's running one now. It has a high gear lugging sound. Also, I can't tell if my bike is in nuetral anymore, I made a mistake thinking I was in nuetral and it TOOK off! be careful. Make sure your kill switch is always working.

[@endurofan9854]

The Duke now thats the dangerous part in using rekluse...

[@RIPPERTON]

11:36 Thats not the basket, thats the boss.

[@sinegra30]

Centrifugal clutch

[@sankyppp]

For a moment I thot he is Richard Gere...lol

[@FranksBmwAdv]

basically centrifugal clutch then.

[@duckwacker8720]

It's a centrifical clutch.

[@Dingbobber]

Centrifugal actually, because the wedges push out.

[@XLV750RD01]

It's called a centrifugal clutch.

[@RIPPERTON]

The replacement teflon pads are only 0.8mm thick. They barely protrude above the surface of the pocket they fit in. They are basically already worn out when you put them in. When the pads wear, the cast steel weight grabs on the aluminium frame and wont recede into the released position. I have bought 1mm thick teflon sheet off ebay and am making my own pads.

[@DirtBikeTest]

Let us know how this goes.

[@laryangel4082]

Iu

[@qbarnes1893]

Let’s create an auto for auto sake, just because I can’t use a manual....clutch...manual gearbox or manual gear change....why not use hand change, hand clutch or even direct drive....some dumb asses will always be convinced....