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fflier9

New Matris F15 cartridge kit...thoughts?

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fflier9
I was wondering what y'all thought about this. Right around $500 w/ int'l shipping after euro conversion. Adjustable compression and rebound.
 
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pattonme
I would love to get my hands on this kit to do an eval (a forum member joked about having Matris send me one for review...).
 
One particular upside to this kit is that there is ZERO need to alter the upper fork tube. In the Andreani you are instructed to gut the bottom. In mine, I knock the seal out. In this one, the fake "damper rod" fits the stock seal. I can't duplicate the arrangement if for no other reason than it would add considerably to the price since these are totally custom from top to bottom, and they're using a spring that is at least 4" shorter than the Sonic ones. Traxxion has springs that are about 2" shorter but I don't know of a mass-market source for something that short. But if you're Matris' you have your own bulk spring supplier who can do it, no problem.
 
Like the Andreani it's most likely a 2-valve system but I suspect there's an error in the picture since the holes on both legs are in the same place. If there is no error, then it would have to be a 4-valve system with the difference being the C leg has high-bypass shim stack on the underside of the piston so that there is ~no rebound control, and a suitably light stack on the top-side instead of the traditional pop-off.
 
Man, everyone now wants in on the cartridge mod at ever decreasing price points. Now, what's Yamaha HQ's excuse for failing to engage Matris to be their OEM supplier? If reseller can sell Matris' kit with profit margin for 400E then for pete's sake it would add what 300-400E tops to the MSRP and Yam would clean the clock of every other $7000USD bike offering.
 

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paulibiker
I would love to get my hands on this kit to do an eval (a forum member joked about having Matris send me one for review...). 
One particular upside to this kit is that there is ZERO need to alter the upper fork tube. In the Andreani you are instructed to gut the bottom. In mine, I knock the seal out. In this one, the fake "damper rod" fits the stock seal. I can't duplicate the arrangement if for no other reason than it would add considerably to the price since these are totally custom from top to bottom, and they're using a spring that is at least 4" shorter than the Sonic ones. Traxxion has springs that are about 2" shorter but I don't know of a mass-market source for something that short. But if you're Matris' you have your own bulk spring supplier who can do it, no problem.
 
Like the Andreani it's most likely a 2-valve system but I suspect there's an error in the picture since the holes on both legs are in the same place. If there is no error, then it would have to be a 4-valve system with the difference being the C leg has high-bypass shim stack on the underside of the piston so that there is ~no rebound control, and a suitably light stack on the top-side instead of the traditional pop-off.
 
Man, everyone now wants in on the cartridge mod at ever decreasing price points. Now, what's Yamaha HQ's excuse for failing to engage Matris to be their OEM supplier? If reseller can sell Matris' kit with profit margin for 400E then for pete's sake it would add what 300-400E tops to the MSRP and Yam would clean the clock of every other $7000USD bike offering.

You thinking Matris maybe a little better then the Andreani? 
 
 

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pattonme
Purely based on pictures and product description, I would wager that yes, it's pretty likely to be better.

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dizzid1320
Wow, this is only slightly more than the Traxxion Dynamics damper kit with emulators. Having never done a conversion like this before, would the install be within the realm of a weekend mechanic, or should this go to a professional shop? Most of my experience is on cars, from building engines to rear ends, but I leave auto trannys and suspension setup to the pros with the right tools.

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fflier9
Patton, what is the difference between the kit you commented on above and Matris' "old" cartridge kit (aside from adjustable compression and rebound)? I like the fact that you don't have to alter the fork tube. I would send my forks to you in an instant after lurking here for a while, but with school and work I can't be down for more than maybe a lucky 24 hour stretch. No car...
 
Also, what is the difference between this Matris rear shock, and this one, with integrated hydraulic spring preload?  What is the benefit of having hydraulic preload over spring preload, and must you purchase a separate tool to add gas?
 
Are these even good shocks for someone on a budget?
 
Hope it's not too many questions. Just trying to figure out what to do. gotta ride every day
 

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pattonme
 what is the difference between the kit you commented on above and Matris' "old" cartridge kit 
The Matris FY125SE (your link) isn't remotely a cartridge kit. It's their re-spin on the Gold Valve Emulator. Instead of being tuned by a spring-loaded plate, the Matris unit uses a shim stack. Said valve still fits into the damper rod like the GVE does.

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pattonme
Also, what is the difference between this Matris rear shock, and this one, with integrated hydraulic spring preload?  What is the benefit of having hydraulic preload over spring preload, and must you purchase a separate tool to add gas? 
Are these even good shocks for someone on a budget?

Assuming the valving is up to snuff, they are better than the Ohlins offering by virtue of the ride-height adjustment. Being able to adjust ride-height is one of the more important controls IMO. I doubt the preload adjuster is actually hydraulic at all, but rather just a screw+worm gear setup which is becoming more common. It should be rather more convenient to adjust compared to skinning your knuckles trying to spin the traditional ring. However the dual-ring method has no limits to adjustment, whereas the (hydraulic or otherwise) adjustment probably only has a range of 10-15mm. If you need more than that you probably have to take the spring off, reposition the adjuster (might need a shim or it could just be a set-screw) and re-install the spring. 
Yes, I consider them worth a purchase. The feature set is equivalent to the Nitron Sport. All shocks come pre-charged.

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randy2100
I would love to get my hands on this kit to do an eval (a forum member joked about having Matris send me one for review...). ...

I ordered one today. For the "science" experiment, I could pay to ship it plus my forks to you in exchange for you installing it and you paying to ship it back to me.  Any supplies/parts/upgrades would be paid by me.  Time frame would be the second half of August. 

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pattonme
would the install be within the realm of a weekend mechanic
Hell yes. If it wasn't for the blasted bushing being wrong, you could do this without separating the halves; basically not too much more involved than an on-bike spring change. 
but do replace the bushings if you're doing any fork work.

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gigero
I would love to get my hands on this kit to do an eval (a forum member joked about having Matris send me one for review...). ...

I ordered one today. For the "science" experiment, I could pay to ship it plus my forks to you in exchange for you installing it and you paying to ship it back to me.  Any supplies/parts/upgrades would be paid by me.  Time frame would be the second half of August.
Any updates on this? I'd be interested in your thoughts on performance and the adjustability of the cartridges. 
 
 
 
 

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pattonme
well, I'm afraid it's still on the calendar for 2nd half of August. Unless maybe I shell out the money and @randy2100 buys the kit off of me...
I've got a few interested guys who want a review on Triumph RAT, too.
 
I just don't want to get stuck with it. Anyone willing to do a 'firm' commit to take it off my hands after the review? Free shipping CONUS from me to you.

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randy2100
They have my money, no shipping info so it's wait and see.

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randy2100
Box of fork cartridges is on it's way from Italy. I'll post some pics when it arrives.
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