4cs Race Tech combo kit.

crowe176
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Spring Lake, MI, USA
First, I'm planning on calling Race Tech, but I wanted to get some opinions before I call..

15 350, and debating on whether I want to fix my issues with the fork, or just sell it and get a newer 450..

So, I've been able to get it to the point that I love how it handles, and rides everywhere on the track except landing on big hits where it just blows through and bottoms out pretty bad. It's usually on one specific jump at the two tracks I ride at. It's sprung to my weight, and proper sag set.


Does anyone have experience with the Type 3 Gold Valve combo kit, and will it address the issues I'm having? I've read something about "open chambers"?

I've never done more than change oil on forks, but I have access to the tools, and I'm capable enough, so I'm hoping the combo kit is good enough to get through another season or two of a few practice days a month before I purchase a new bike.

I know there are more popular options available like Kreft's conversion, or swapping to different forks all together, but like I said, I would like to somewhat solve my problem myself and I'm curious if Racetech's kit will be better than what I have now...
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crowe176
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3/2/2019 1:37pm
Also, sorry if this has been covered and beat to death. I've been off the bike and away from moto for over 7 years and the last couple seasons, I've just been getting back into it when I can. I wasn't planning on doing too much to the 350, but I'm on the fence of getting something newer, as I'm very content with the 350, but I miss the low grunt of the 450..
bowser
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AU
3/2/2019 4:22pm
don't waste money on 4cs. Put it towards a SSS conversion which you can transfer the carts to other forks or resell at later date. Plus they will have far better bottoming then the 4CS even when modded offer.

The 4CS still has the defective design using the purple seal which fails, granted this can be removed if going the open chamber route. The bottoming function is very limited with either configuration, purely because of the limited real estate for any decent diameter parts to fit.

I have had almost all 4CS mods known to man and spent way too many hours testing and reviving them, out of the box AER work 30000% better
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crowe176
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3/2/2019 4:36pm Edited Date/Time 3/2/2019 4:37pm
10-4, that's what I was afraid of. I'm probably going to get it cleaned up and sell.

I've never experienced anything like these. My last bike's before I quit riding were an 05 CRF450 and an 07 RM 250, both setup by Factory Connection, and you would think, 10 years later, the stock 4cs would at a little better than my stock 05 CRF Showa's.. The first time I came up a hair short on a decent sized jump, I thought I wrecked my wrists.

It's crazy, because EVERYwhere else, the bike is balanced and as good as I've ridden. Pretty bummed
bowser
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3/2/2019 4:38pm
4CS will never be any good for MX. Unless you change the carts to SSS or Dalsog etc.
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The Shop

crowe176
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3/2/2019 4:51pm
bowser wrote:
4CS will never be any good for MX. Unless you change the carts to SSS or Dalsog etc.
I'm assuming that's not cheap, and ultimately not worth it?
bowser
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3/2/2019 5:16pm
SSS can be done relatively cheap. Do you have access to a lathe? I can send the CAD file for the adaptors. Dal Dog are a lot more money but straight bolt in kit
Layton
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3/2/2019 5:25pm
MX Tech Lucky System is plug and play in those forks. Check them out.
crowe176
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3/2/2019 6:45pm
bowser wrote:
SSS can be done relatively cheap. Do you have access to a lathe? I can send the CAD file for the adaptors. Dal Dog are a...
SSS can be done relatively cheap. Do you have access to a lathe? I can send the CAD file for the adaptors. Dal Dog are a lot more money but straight bolt in kit
I actually do have a lathe I can get time on at work. I'd appreciate it!

jcrowe938@hotmail.com is my email!
3/3/2019 5:09am
The best combo for the 4cs fork is letgo and eBay.
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crowe176
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3/8/2019 10:22pm
The best combo for the 4cs fork is letgo and eBay.
I'm starting to agree. I was looking at the Del Soggio kit and seriously considering just going that route, but I havn't read enough to convince me that this would be better than just buying a 17/18 with AER..
yz133rider
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Avondale, PA, USA
3/8/2019 11:51pm
Get a set of kyb forks, ohlins, or conevalves. Turbojez on here always has sets for sale! Hit him up see what he has.


That way when ur done ready to sell u slap the stock forks on and sell the upgraded set for what you paid for it. And, boom, free amazing suspension.
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bowser
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3/9/2019 12:29am
The best combo for the 4cs fork is letgo and eBay.
crowe176 wrote:
I'm starting to agree. I was looking at the Del Soggio kit and seriously considering just going that route, but I havn't read enough to convince...
I'm starting to agree. I was looking at the Del Soggio kit and seriously considering just going that route, but I havn't read enough to convince me that this would be better than just buying a 17/18 with AER..
Nothing wrong with AER forks. They work fantastic
3/9/2019 3:22am
The best combo for the 4cs fork is letgo and eBay.
crowe176 wrote:
I'm starting to agree. I was looking at the Del Soggio kit and seriously considering just going that route, but I havn't read enough to convince...
I'm starting to agree. I was looking at the Del Soggio kit and seriously considering just going that route, but I havn't read enough to convince me that this would be better than just buying a 17/18 with AER..
I heard good reviews from a magazine test. I don’t know why they haven’t taken off. It seems like the mx and sx teams need to run stuff in order for it to become popular. Turbojezis a god guy who usually has good stuff for sale like yz133 said.
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crowe176
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3/9/2019 7:46am
Thanks guys. I’ll check it out! Didn’t even think about buying separate set and just pulling them off when I’m ready to sell.

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