Posts
6757
Joined
6/8/2012
Location
State College, PA
US
Can anyone tell me the difference between the Z-start pro and radius x? They're both about the same price. Also, does anyone have any experiences with both of them? If so, how much better is the core exp 3.0?
I've decided to finally give in and buy one but I get different reviews. Some tell me the regular exp is fine, others tell me not to even waste my time. It seems as though people have opinions on the cheap exp model and the exp 3.0 but I can't seem to find anyone with opinions on the other 2.
I've decided to finally give in and buy one but I get different reviews. Some tell me the regular exp is fine, others tell me not to even waste my time. It seems as though people have opinions on the cheap exp model and the exp 3.0 but I can't seem to find anyone with opinions on the other 2.
The Shop
The Core exp 3.0 will exceed your expectations...it's incredible.
However, They don't have the life span of a traditional clutch though. But, if you maintain them correctly (install gap in spec all the time...checked regularly), they will last one or two hundred hours (I'm talking from an off-road race perspective...I have no experience in a moto environment), I can usually get double/triple that from a traditional clutch.
But the rekluse made me a better rider...I was faster...used less energy...I used the clutch as I always have...it was just there when I needed it (prevented the bike from stalling, and kept it running when I crashed)...but the fact that I didn't have to worry about stalling, that I could ride a gear high (carry more momentum every where), etc. etc.
But I wouldn't mess with the z-start.
(And the CORE EXP 3.0 replaced the 2.0 which replaced the Core EXP which replaced the z-start pro, which replaced the z-start...if my rekluse history is correct...it could be off...)
I've got a Z Start Pro in my 09 250SX. It was $175 from a local racer so that is why it is in there. I like it, it has been a set it and forget it setup so far. Probably 30 hours since installing it in the bike even after a 2.5hr mudder back in January that absolutely worked the hell out of the clutch. A few other buddies I ride with have the Z Starts in their 250/300XC's and have had the same results. Set it and ride. Not available anymore, so just get the Core EXP and buy once/cry once. Its the only way I would go with the new Rekluse lineup.
The Radius is an EXP auto with a clutch pack similiar to the Torque Drive manual.
The difference between a Z-Start and an EXP is literally everthing. The z-start uses a ball and ramp mechanism to clamp the clutch pack. The unit is also the pressure plate, meaning that the clutch actuation is coupled to the centrefugal forces.
The EXP uses what is essentially a very thick friction disc. The frction plate has an internal cam mechanism that expands the disc. Because the mechanism exists with a traditional pressure plate, clutch actuation is intact. Rekluse claims that clutch actuation is exactly the same as a stock clutch, but thats not true. As rpms increase, the distance the pressure plate has to move to decouple is also increased. So the engagement point is a little inconsistant, thats all.
The problem with Rekluse clutches, besides adjusting them (made easy for KTMs with Rekluse's adjustable slave cylinder), is the lack of holding power. Clutch plates are removed to make room for the centrefugal units. This is the purpose of their Torque Drive technology. The plates are much thinner, and allows them to use more plates and get back the friction lost from removing plates.
What is it that you are looking for? What type of riding, whats your skill level, ect...
Get one, try it. You have a 30 day return option if you don't like it. You really can't go wrong.
Oh, and my bike is a 2012 Yz 250.
I think its better than electric start, and I fucking love electric start race bikes....but I'd give up electric start for that clutch. Cheating really.......
Pit Row
Paw Paw
For those who had slippage or quick wear, these things are very adjustable and you really should put in the time to dial it in to your preference. I only check the gap on mine every 20 hours or so and it really never changes.
Radius X is the new mid level price point clutch from Rekluse. It does infact take the technology of TorqDrive Manual (technology used by Star Racing and HRC Honda (MXGP) and combine it with EXP technology.
The result is a very strong functioning clutch system at a reasonable price. This system will actually have more friction plates than your OEM clutch and will stay much more consistent as the TorqDrive clutch pack uses steel fiber plates that do not expand like your aluminum OE fibers. This all goes into your OE clutch components.
The last thing is this clutch system is externally adjustable at the cable, (for cable Bikes) so you can fine tune the clutch on fly or even mid race.
Product level
EXP- $399
RadiusX - $599
Core EXP - $899
Z-Start Pro is an older technology that was introduced in 2006. The Z-start Pro is a great functioning Auto clutch but lever modulation and feel is quite different than OE.
I just started riding a 450F, and sold my 250F. I have noticed that I stall out a lot more frequently in tight, rutted turns. Not sure if I ever did before on my 250F. But I can't keep this 450F running in tighter corners. So that is why I have been wanting to try out a Rekluse auto.
Would the Radius X or Core EXP be better for me? I still don't understand the difference. I also don't want to have to adjust something every ride. Cost is not really a concern.
Post a reply to: Rekluse clutches