KTM SXF 350 2014 fork upgrade

lc4_fan
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lc4_fan
Edited Date/Time 9/9/2019 2:37pm
Hi guys, i recently found out, that the 2014 350 fork doesn't even seem to be the 4CS one is this correct?

I want to upgrade to the 2018 or 2019 AER because you can get a new one or mostly new for around 800usd. Which parts do i need to change? Can i use the old triple clamps? Just change the fork legs, axle, spacers for the wheel and fork guards or is there more to change?

Best regards
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Haze51
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Haze51 9/5/2019 11:20pm
9/5/2019 11:20pm
Don't change em, those closed chamber forks on the 14's kick ass. I know people trying to find 12-15 sxf wrecks just to try salvage those sets.

That aside, each to their own. If you did go through with it, it's a new axle size. Standard and aftermarket wheels have spacer options between the old and new axles. And yes, different shaped fork shrouds.

So if you buy the AER forks you'll need
-wheel spacers for your old wheels
-axle to suit
-fork shrouds

They will fit the same clamps. I'm pretty sure the AER forks are marginally shorter than the closed chamber ones, though. So you may need to drop the AER's through the clamp more for the same turn feel.

Changing the AER fork feet back to the old axle size is more expensive than getting a new axle and some spacers.

Hope that helps sorta
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chump6784
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chump6784 9/5/2019 11:46pm
9/5/2019 11:46pm
I had a 2012 250sx with the same forks as the ones you have. Once sprung for my weight they weren't too bad. I got a revalve done on them by the same tuner that did the forks on my 2007 RM 250 and I would say they were on par with eachother
lc4_fan
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lc4_fan 9/5/2019 11:53pm
9/5/2019 11:53pm
Ok, i am 95kg with clothing i think this is way to much for the stock springs.normally they work fine but when i jump on flats from jumps with high edges it bottoms out
chump6784
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chump6784 9/6/2019 1:16am
9/6/2019 1:16am
Check the spring rate calculator on race tech and tekniks websites. They should get you in the ballpark.

The Shop

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coastie44
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coastie44 9/6/2019 9:38am
9/6/2019 9:38am
I don’t think switching to AER is an upgrade. I really liked my 13 SXF forks after revalve by good tuner. It’s been a long while of course, but I have A kit KYB stuff on my current bike and still think those revalved forks were really good. The key is having a good tuner and knowing what settings work for you.
MPJC
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MPJC 9/6/2019 11:33am
9/6/2019 11:33am
I had a 13 350, and thought the forks worked very well when properly sprung and valved. I agree with those who say not to bother switching to AER. You'd be much better off putting the money towards tuning your forks to your preferences.
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racerhansen 9/7/2019 4:50am
9/7/2019 4:50am
Switching to AER would not be an upgrade. The old closed cartridge fork is way better and much easier to work with
dirtbikemike 9/7/2019 6:06am
9/7/2019 6:06am



I have the heavy fork springs that you need from Race Tech. $60 plus shipping.
ob
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ob 9/7/2019 1:26pm
9/7/2019 1:26pm
Not an upgrade.
cmotodad
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cmotodad 9/7/2019 4:25pm
9/7/2019 4:25pm
Put a KYB SSS conversion in those forks, very easy to do, and have the best WP ever.
bartziokas123 9/8/2019 12:58pm
9/8/2019 12:58pm
I was pretty sure the 13 was the last year of the closed cartridge. Are you sure the 14 doesn’t come with 4cs?
slipdog
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slipdog 9/8/2019 5:25pm
9/8/2019 5:25pm
bartziokas123 wrote:
I was pretty sure the 13 was the last year of the closed cartridge. Are you sure the 14 doesn’t come with 4cs?
'14 they came on the XCs but didn't get on the SXs until '15
langhammx
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langhammx 9/8/2019 5:50pm
9/8/2019 5:50pm
My ‘14.5 FE 450 came with the 4CS. Hated those forks.....
lc4_fan
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lc4_fan 9/9/2019 1:21am
9/9/2019 1:21am
How do i recognize the 4cs? can i post a picture of the spare parts section of the disassembled fork that you can recognize some internal part identifying the 4cs vs. closed cartridge bladder fork?

Best regards and many thanks for all you answers
lc4_fan
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lc4_fan 9/9/2019 1:30am
9/9/2019 1:30am


this should be my fork internals and partlist according to the spare parts catalogue
Aussie_power_sports 9/9/2019 2:13am
9/9/2019 2:13am
Those CC's you have are the best production fork ktm made....just get them revalved and resprung.

4cs are shit. They have comp adjuster on one side and rebound on the other, both on tops of fork legs. CC' have compression adjuster on top of fork legs and rebound o. The bottom

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lc4_fan
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lc4_fan 9/9/2019 2:38am
9/9/2019 2:38am
according to the pic, which do you think i got CC or 4cs?
bf884
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bf884 9/9/2019 10:56am
9/9/2019 10:56am
lc4_fan wrote:
according to the pic, which do you think i got CC or 4cs?
CC's
lc4_fan
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lc4_fan 9/10/2019 1:21am
9/10/2019 1:21am
thanks for your feedback, than i have those CCs and gonna buy the correct springs for winter and let a shop revalve them. normally i do everything on my own but i think working on the cartridge is something an expert should get his hands on Smile
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