The July issue of Motocross Action arrived today and the new Rekluse Core EXP review (page 132) caught my immediate eye. This new Rekluse appears to be a totally different product and very worthy of consideration on my bike (09 450R). MXA gave it 5 stars and and didn't note any negative view points. Up until today, I was planning on purchasing a Hinson slipper clutch, but now there seems to be an even much better option costing much less (slipper $1200+ versus the new Rekluse for $799)

I ride mostly MX in the Vet C class and I'm frustrated with the occasional stall, especially later in motos when I'm tired or from a mistake. If this thing works as advertisied, I dont see any value in getting a slipper clutch over the new Rekluse? While MXA didnt mention anything about engine braking, I'm assuming the new Rekluse would cure this just as good as a slipper?

Does anyone see any downside on this? My impulse buying urge is at an all time high.

maybe H Bomb will chime in here. He's a big fan of Rekluse so he might be able to provide you with some solid advice.

A slipper clutch and a rekluse clutch are two totally different animals. A slipper clutch is only good for supermoto where you are backing it into turns (keeps the rear wheel from locking up on deceleration). The Rekluse is an auto clutch which means you can get by without using your clutch lever at all.

Tdrewk,
It's a good thing you found this article or your $ 1200 + purchase would have made a very pretty paper weight....as it would have done NOTHING to help you ! I run the Rekluse Pro on my 450R and love it. I ride MX, Trails and Cross-Country and it rocks...You can still use the clutch lever for starts and forget it's there late in the race when one gets tired. It also helps greatly when traction is terrible ! Impulse buys are great, just don't buy the wrong thing !

After reading up, I'm not sure why one would switch from Anti-stall to "regular".....So, IMO, the Rekluse Pro is what you need !

I have the Rekluse Pro and love it. I am a Vet C rider and it has really helped my lap times and endurance due to the less effort required to ride faster. It will not fix all stall problems if you bike is not set up properly. However, all stalls as a result of lugging the engine or locking up the brake are eliminated. Also the Pro allows you to set the clutch engagement rate (i.e. slipping the clutch) when comming out of corners. Less hit/wheelspin = Less fatigue for old guys anyway. There are a few reviews on the Pro floating around the internet. I think the price is down to $500 now. Good luck.

VACRF450 said:

Only good for supermoto? I beg to differ. It's a huge help in MX as well. Cornering as well as jumps. A Rekluse allows you to coast off jump faces without engine braking pushing the nose down.

Originally Posted by VACRF450
A slipper clutch and a rekluse clutch are two totally different animals. A slipper clutch is only good for supermoto where you are backing it into turns (keeps the rear wheel from locking up on deceleration). The Rekluse is an auto clutch which means you can get by without using your clutch lever at all.

KtmKramer said:

you beg to differ, because you did not understand/quote his complete answer.
a rekluse IS NOT A SLIPPER CLUTCH
VACRF450 says that in his first sentance.
a "slipper clutch" is mainly used as stated for sm.
a rekluse is a variation on an auto clutch.
that said, whats this core exp? hmmm...

Update - I called Rekluse today to ask some questions and I was told the following...

1. The Rekluse EXP does not prevent engine braking. Engine braking remains.
2. The EXP does not replace clutch lever use, advisable to use the clutch when changing gears as the clutch only disengages/engages at idle RPM
3. The EXP is not an automatic clutch, mostly an anti-stall device.

The Rekluse website supports everything I was told today. The MXA article seems way off basis. How did they get it so wrong? Quotes from MXA page 132 July 09...

"Turn your tranny into an automatic or a Tiptronic"

"There is no need for the rider to ever touch the clutch lever when moving or stopping"

"This simple little device eliminates the need to ever pull the clutch in again. That is an earth-shattering concept. Just gas and go-no levers"

"Thus, when the rpm increases, the weights slide outward to spread the EXP assembly wider. This widening action hooks up the clutch. When the RPM drops the weights slide inward and the clutch is disengaged"

On the last quote, if that were true then engine braking would no longer exist. Maybe they mean if the RPM drops to idle, then that would make sense, right? I cannot believe the mis-information in the article from MXA. Would love more input from folks that know more. After reading more on the Rekluse website, I think I'm just better off going with the Z-start Pro. The Z-start Pro seems to do everything the EXP does, along with making the clutch usage automatic.

on the rekluse website they "imply" a non centrifical mechanism, but the mxa description sure sounds centrifical to me.
if thats the case whats the benefit over the pro? no "sliding/slipping" engagement?
cant wait till it comes out.

HappyG said:

It's got two different hubs. One is a normal clutch and other is a non-stall apparently is automatically disengages at idle speeds. Seems like this would be a very excellent MX clutch. I have the Pro version on my 450X and it works great for off road but for MX it seems snappier engagement would better, no?

i have the rekluse pro on my 09 450. it is the best thing i have ever bought for a hands down. i don't know much about the new exp but the pro i have is amazing. i ride trails and mx and it is like having 2 bikes in one. the one thing i didn't like about the 09 was how easy it stalls and i couldn't ride it in the trails and it was a pain for mx as well. i bought the rekluse pro on a gamble and it was the best thing i ever did. i thought it would only help for the trails but how wrong could i be. i ride so much better on the mx track as well. just this weekend was an example. i fell twice in practice and got up both times and didn't have to re start my bike just got on and went and in races prior i have fell over in a rut and saved so much energy by just hopping on and going. i pulled 2 holeshots also this sun and when they over water the track this thing is great controlling the power and not busting my ass

i could keep going and going about this thing lol. the only real reason i could see not to buy this would be the money but if you were gonna buy a 1200 hinson anyway you are gonna save money.

http://www.rekluse.com/exp2.shtml

Rekluse Core EXP Clutch w/ EXP Technology

Rekluse introduces an all new type of clutch system that can be configured in two different operating modes: manual mode or anti-stall mode. The Rekluse Core Clutch consists of a center clutch, a matched set of steel drive plates, springs and a manual pressure plate. The Rekluse Core EXP Clutch consists of a center clutch, a matched set of steel drive plates, springs, an EXP friction disk and an EXP pressure plate. All Rekluse Core Clutches work with your bike's stock friction disks or Rekluse friction disks. One of the primary benefits to the Rekluse Core Clutch is the ability to change from anti-stall mode (Core EXP Clutch) to manual mode (Core Clutch) in a matter of minutes.

REKLUSE MANUAL
The Rekluse Manual Pressure Plate is engineered to deliver the best performance and durability in a CNC machined replacement for your bike's stock cast clutch components. Not just another CNC copy of stock clutch components, the Rekluse Manual Pressure Plate combined with the Rekluse Core Clutch gives you the best performing and most durable stock-replacement clutch components available.

REKLUSE EXP
The Rekluse EXP Pressure Plate and EXP Friction Disk transforms the Rekluse Core into a clutch that automatically disengages at idle, preventing accidental engine stalls while maintaining the clutch lever modulation and feel of a best-in-class manual pressure plate. Forget everything you’ve ever thought or heard about a centrifugally-actuated clutch: the Rekluse EXP changes the rules for a high performance clutch.

I have the Z start Pro in my 05 450 and wont ride another 4stroke without one,It's like cheating.I do use my clutch just like normal(habit i guess). I turned my Idle up some so I would have some engine braking when letting off the gas,It does work esp if u pull in the clutch just as u let off the gas then immediatly release the clutch.. Its not engine braken like 1 would be use to but it does help. I can start my bike in gear without the clutch being pulled in also,Its awsome. I think it also helps in muddy conditions to control wheel spin and helps the bike work more like a tractor.

I went ahead and purchased the Rekluse Z-start pro, seems like the better product for my riding level

you will love it. make sure to switch over to the Rotella oil in the tranny.

tdrewk said:

I agree you will love it. I have the Pro in my 07 450R and it transformed that bike in a good way. I can play MX or follow my grandson on his KX 50 through the woods. Great product!

I was missing one RMS steel plate in my package (only got 7), so I temp put in the .065 adjustment plate. Rekluse is overnighting the 1 additional plate to my hotel and I'll install at the track. So far, it seems crazy weird!

I never heard of Rotella, been out of riding for a long time. Is it the same weight 10w-30? What are the benefits?

Thanks

tdrewk said:

You will find a mountain of information with a quick search of this forum for Rotella.

Hey guys not to HJ this thread but I am selling my Rekluse pro off my 07 450R; asking $400.00. It has about 10 hrs on it.

So if the clutch is pulled in, it will still let you scream the motor on the starting line?