WP 4cs forks

8/22/2015 6:32am
have any of you guys got first hand experience with modifying these forks to work well? heard a lot of people having problems doing so. Looking...
have any of you guys got first hand experience with modifying these forks to work well? heard a lot of people having problems doing so.

Looking at buying a new 350 soon, over here the ktms come with air forks, and the husky comes with the 4cs. Not a big fan of the design / idea of airforks. Would like some feedback from anyone that's spent some time setting the 4cs forks up- can you get them to work well?


thanks
I have a 15 350 Husky. Played and played with the settings but no joy at all. The thing was plain scary.

I had mine revalved in Holland for minimal outlay and bang they work. A few clicks at the track and I'm so much happier.

Also Matt at EvoTech says he has a good setting for them.

If I had to invest big money I'd go the Ohlins TTX cartridge route.
Schipwreck
Posts
146
Joined
7/25/2012
Location
Paso Robles, CA, USA
8/22/2015 8:28am
For those of you just browsing this thread that are running the stock 4cs and wish you could get them fixed but dont have the cash or time at the moment..i have a little tip. Pull the the forks off the bike, take out the little bleed screw on top and dump out 20-35cc's of oil. I pour into a ratio rite to measure.Takes the edge off the harshness and makes them work decent. I called WP and verified this is safe to do. Hope you like it..if not just put the oil back in through the same hole and your good to go.
TeamGreen
Posts
37009
Joined
11/25/2008
Location
Thru-out, CA, USA
8/22/2015 8:37am
TeamGreen wrote:
I'm running 4CS on a '15 Husky. They work. Go look up Tim Badour: he rode the bike at Pala on the big track and LOVED...
I'm running 4CS on a '15 Husky. They work.

Go look up Tim Badour: he rode the bike at Pala on the big track and LOVED them.
Titan1 wrote:
TG...why do people seem to like (or at least make them work) the Husky 4cs, and hate the KTM 4cs?
Too much "Supercrossishness" in stock KTM SXF set up.

Btw, my Husky has stock "Off-Road/FE" valving.
Thelen20
Posts
2060
Joined
11/28/2009
Location
Marshall, TX, USA
8/22/2015 12:29pm
I am a few weeks into motocrossing my 2015 250sx and loving it all except the 4cs forks . . .

The previous owner had them revalved by Stillwell performance and I am sure they are much improved over stock but last weekend I had an experience during my race that will have me headed for some cone valve forks this winter.

The forks are set up for a 175lbs vet int, I weigh 180lbs and I run +25A but I am not a front runner, usually back half of the pack so I would the revalved should be close to the right setup for me.

The forks feel great on small chop, the bike tracks well and turns on a dime. The was a small double at a private track that I was over jumping into the flats, 3rd gear, maybe getting 5ft off the ground if that. These forks did not like that hit, blew through the stroke and bottomed lightly, not crazy but enough that I clenched my teeth every lap. At that point I stiffened the comp 2 clicks. Still good in the small stuff, not harsh imo.

But the crazy one at the race was 3rd gear coming down the landing if a big step up down into a g-out before it goes back up hill and turns right at the top. Basically a g-out with braking bumps because you have to slow for the turn after it goes back up hill. I'm on the binders and the first 3 or 4 bumps feel great then I hit that last one and the forks bottomed sooo hard I just knew I broke something! I mean I thought the legs came through the caps! Like nothing I have ever felt on a dirt bike in 15 years! I guess that was their issues with multiple hits that everyone talks about.

I'm not going to try to fix em, I am going to replace them and continue to enjoy me awesome smokin ktm!!!

The Shop

bob567
Posts
767
Joined
7/9/2015
Location
Los Angeles, CA, USA
8/22/2015 12:49pm Edited Date/Time 8/22/2015 1:17pm
Its all relative to your age/ability. At 49 I went from a 2005 CRF405r with Factory Connection suspension to the 2015 450 FE. The stock forks are worlds better than my Honda and super confidence inspiring. I wouldn't change a thing about them. If I was 30 years younger it would be a different story. Actually I think the stock honda fork/shock was better before I spent $1,148 with Factory Connection.
TNL830
Posts
74
Joined
8/24/2013
Location
Galt, CA, USA
8/22/2015 3:58pm
I'm not a fan of the forks one bit, when I got my 14FE I thought I might like the forks the stock springs were way under sprung for me I weighed 245 when I got the bike. once I had the correct springs in the forks were way to harsh. Got the revalved and it was better but still bottomed hard, had a revalve done again and still hated them. I found they worked great for me in the desert and on sand tracks. I went with the Race Tech stuff and they still worked amazing on the sand track and desert but i still hated them on hard pack tracks, tried a new revalve and they still bottomed hard at hangtown, if I got the clickers to the point where they wouldn't bottom out then they were way to harsh for anything else. I hate these forks and I know everyone has a fix for them but coming off of SSS forks to these it's just been a horrible experience. Now with a broken wrist I refuse to return to riding that bike again with those forks.
slipdog
Posts
10054
Joined
7/25/2009
Location
Nor Cal, CA, USA
8/22/2015 4:25pm
TNL830 wrote:
I'm not a fan of the forks one bit, when I got my 14FE I thought I might like the forks the stock springs were way...
I'm not a fan of the forks one bit, when I got my 14FE I thought I might like the forks the stock springs were way under sprung for me I weighed 245 when I got the bike. once I had the correct springs in the forks were way to harsh. Got the revalved and it was better but still bottomed hard, had a revalve done again and still hated them. I found they worked great for me in the desert and on sand tracks. I went with the Race Tech stuff and they still worked amazing on the sand track and desert but i still hated them on hard pack tracks, tried a new revalve and they still bottomed hard at hangtown, if I got the clickers to the point where they wouldn't bottom out then they were way to harsh for anything else. I hate these forks and I know everyone has a fix for them but coming off of SSS forks to these it's just been a horrible experience. Now with a broken wrist I refuse to return to riding that bike again with those forks.
Maybe you should have found yourself a new suspension tuner... Tongue
TeamGreen
Posts
37009
Joined
11/25/2008
Location
Thru-out, CA, USA
8/22/2015 4:31pm
TNL830 wrote:
I'm not a fan of the forks one bit, when I got my 14FE I thought I might like the forks the stock springs were way...
I'm not a fan of the forks one bit, when I got my 14FE I thought I might like the forks the stock springs were way under sprung for me I weighed 245 when I got the bike. once I had the correct springs in the forks were way to harsh. Got the revalved and it was better but still bottomed hard, had a revalve done again and still hated them. I found they worked great for me in the desert and on sand tracks. I went with the Race Tech stuff and they still worked amazing on the sand track and desert but i still hated them on hard pack tracks, tried a new revalve and they still bottomed hard at hangtown, if I got the clickers to the point where they wouldn't bottom out then they were way to harsh for anything else. I hate these forks and I know everyone has a fix for them but coming off of SSS forks to these it's just been a horrible experience. Now with a broken wrist I refuse to return to riding that bike again with those forks.
slipdog wrote:
Maybe you should have found yourself a new suspension tuner... Tongue
Logic
slipdog
Posts
10054
Joined
7/25/2009
Location
Nor Cal, CA, USA
8/22/2015 4:58pm
TeamGreen wrote:
Logic
FTR, I know Tim and his tuner and was just giving him crap. Tim's bike was the first set of 4cs forks I rode with, but he had a long standing relationship with another tuner before we ever met. I used his stock 4cs as a baseline to start testing so I could know what changes I wanted to make based of how they felt on the track.
TNL830
Posts
74
Joined
8/24/2013
Location
Galt, CA, USA
8/22/2015 5:16pm
TNL830 wrote:
I'm not a fan of the forks one bit, when I got my 14FE I thought I might like the forks the stock springs were way...
I'm not a fan of the forks one bit, when I got my 14FE I thought I might like the forks the stock springs were way under sprung for me I weighed 245 when I got the bike. once I had the correct springs in the forks were way to harsh. Got the revalved and it was better but still bottomed hard, had a revalve done again and still hated them. I found they worked great for me in the desert and on sand tracks. I went with the Race Tech stuff and they still worked amazing on the sand track and desert but i still hated them on hard pack tracks, tried a new revalve and they still bottomed hard at hangtown, if I got the clickers to the point where they wouldn't bottom out then they were way to harsh for anything else. I hate these forks and I know everyone has a fix for them but coming off of SSS forks to these it's just been a horrible experience. Now with a broken wrist I refuse to return to riding that bike again with those forks.
slipdog wrote:
Maybe you should have found yourself a new suspension tuner... Tongue
Ha Ha Ha... I'll remember that
TNL830
Posts
74
Joined
8/24/2013
Location
Galt, CA, USA
8/22/2015 5:17pm
TeamGreen wrote:
Logic
slipdog wrote:
FTR, I know Tim and his tuner and was just giving him crap. Tim's bike was the first set of 4cs forks I rode with, but...
FTR, I know Tim and his tuner and was just giving him crap. Tim's bike was the first set of 4cs forks I rode with, but he had a long standing relationship with another tuner before we ever met. I used his stock 4cs as a baseline to start testing so I could know what changes I wanted to make based of how they felt on the track.
Slipdog, your free to test that bike all you want now...
snape99
Posts
194
Joined
4/25/2014
Location
Picnic Point, NSW, AU
8/22/2015 9:51pm
I won't buy another Ktm till the 4cs forks are gone. I have a 2015 250sx and love everything about bike except for forks.
Tim507
Posts
3481
Joined
6/8/2010
Location
Oregon City, OR, USA
8/22/2015 9:59pm
snape99 wrote:
I won't buy another Ktm till the 4cs forks are gone. I have a 2015 250sx and love everything about bike except for forks.
Lets hope that KTM monitors all the 4cs discussions. I have a low hours set of 4cs forks leaned up against the wall in my shopWink
CarlinoJoeVideo
Posts
7517
Joined
11/30/2013
Location
Portland/Los Angeles, CA, USA
8/22/2015 10:25pm
Are there any OEM forks that are really good out of the box? Say if you were the target weight, any that don't even need a revalve?
8/23/2015 6:58am
Are there any OEM forks that are really good out of the box? Say if you were the target weight, any that don't even need a...
Are there any OEM forks that are really good out of the box? Say if you were the target weight, any that don't even need a revalve?
kyb sss, are alsome bone stock.
8/23/2015 1:21pm
TeamGreen wrote:
Logic
slipdog wrote:
FTR, I know Tim and his tuner and was just giving him crap. Tim's bike was the first set of 4cs forks I rode with, but...
FTR, I know Tim and his tuner and was just giving him crap. Tim's bike was the first set of 4cs forks I rode with, but he had a long standing relationship with another tuner before we ever met. I used his stock 4cs as a baseline to start testing so I could know what changes I wanted to make based of how they felt on the track.
Do you feel it's a flow restriction into the reservoir chamber that causes the harshness Slip or the valving having too much HSC? Or a combo of both? I had one set apart to do seals and thought the base valve could be eased off a little on the HSC. I haven't had the time to play around with the valving on a set yet or even decent seat time to really get a feel for them.
8/23/2015 1:24pm
TeamGreen wrote:
I'm running 4CS on a '15 Husky. They work. Go look up Tim Badour: he rode the bike at Pala on the big track and LOVED...
I'm running 4CS on a '15 Husky. They work.

Go look up Tim Badour: he rode the bike at Pala on the big track and LOVED them.
Titan1 wrote:
TG...why do people seem to like (or at least make them work) the Husky 4cs, and hate the KTM 4cs?
TeamGreen wrote:
Too much "Supercrossishness" in stock KTM SXF set up.

Btw, my Husky has stock "Off-Road/FE" valving.
Can you get your hands on the factory setting sheet for the Husky to post up so I could compare to the Husky Manny?
DE262
Posts
328
Joined
8/20/2015
Location
The bar, OR, USA
8/23/2015 10:17pm
SSS hands down as far as out of the box goes.
but I'm kinda fat now so I'm spending money no matter what.
hoova
Posts
69
Joined
3/5/2012
Location
AU
8/24/2015 12:56am Edited Date/Time 8/24/2015 2:28pm
Got mine done by shock treatment (racetech distributer in Australia) on my 250sx. Gold valves and OC conversion and it was well worth the $700AU. They are plusher and have much better bottoming resistance than the stock 4cs forks.
njracer46
Posts
713
Joined
3/20/2011
Location
USA
8/24/2015 2:30pm
Here's my report on the 4cs after the first ride on them. Bought a new 15 250 sx wed, raced tomahawk in wv sat. Rode the bike around the yard a little to break it in and loaded up to go race. Coming off a 13 250 sx with revalved forks.

They added a bunch of saw dust to the track and ripped it deep, it was very soft in practice and by first moto the whole track was littered with 2-3 ft tall braking bumps. Going down fast hills and going through corners. The track was brutal, never got a second to rest from bumps.

Set the clickers to what my tuner suggested, swapped my old shock over so that was already set up. Even in the brutal conditions I felt the forks worked pretty good. I was charging down the hills, they didn't feel to harsh even through the roughest parts of the track. If anything the shock felt worse as the back end was kicking around quite a bit going through the high speed sweeping hills. I never really over jumped anything so can't comment on how they are really flat landed hard. But I felt they worked pretty good through the rough stuff.

I called my suspension tuner today to let him know how I liked it because he was curious on my opinion. I won't say who but it's one of the big name suspension tuners ( not some local guy ) he also said he tested a customers bike this Sunday. A new factory edition 250f, with a set cone valves set up by power band. He said the track he rode got pretty rough to. He rode 4 practices on the stock 4cs and a few with the cone valves. He actually said he thought the stock 4cs felt better to him. And he does suspension for a living, not saying the stock stuff is better and the cones can probably be set up better but was a little shocked he said the stock stuff felt better.

Maybe you guys who are saying the stock stuff is un rideable are just to picky, I thought they worked pretty good for not even being broken in yet. Like I said the track was brutal, not one smooth section. I didn't test them on a smooth highway track.
Titan1
Posts
9417
Joined
2/3/2010
Location
Lehi, UT, USA
8/24/2015 4:54pm
Are there any OEM forks that are really good out of the box? Say if you were the target weight, any that don't even need a...
Are there any OEM forks that are really good out of the box? Say if you were the target weight, any that don't even need a revalve?
kyb sss, are alsome bone stock.
Are those the forks that come on the new Yamaha's? (including the YZ250?)
Titan1
Posts
9417
Joined
2/3/2010
Location
Lehi, UT, USA
8/24/2015 4:57pm
For those of you who have not ridden the new bike or 4CS forks. Here's Dirt Riders first impression... [url=http://www.dirtrider.com/video-2016-ktm-450-sx-f-web-test]http://www.dirtrider.com/video-2016-ktm-450-sx-f-web-test[/url]
For those of you who have not ridden the new bike or 4CS forks. Here's Dirt Riders first impression...
http://www.dirtrider.com/video-2016-ktm-450-sx-f-web-test
IF they've fixed them for 2016 (and those test riders seemed to like them) I'd certainly consider a KTM.

I'm looking at their XC line, so I'll wait to hear how those are performing on the '16's.
TeamGreen
Posts
37009
Joined
11/25/2008
Location
Thru-out, CA, USA
8/24/2015 5:49pm
Titan1 wrote:
TG...why do people seem to like (or at least make them work) the Husky 4cs, and hate the KTM 4cs?
TeamGreen wrote:
Too much "Supercrossishness" in stock KTM SXF set up.

Btw, my Husky has stock "Off-Road/FE" valving.
Can you get your hands on the factory setting sheet for the Husky to post up so I could compare to the Husky Manny?
I can give them to SlipDog for servicing and he can post what he finds!
Thelen20
Posts
2060
Joined
11/28/2009
Location
Marshall, TX, USA
8/26/2015 6:00pm Edited Date/Time 8/26/2015 6:22pm
Ok, I been doing a little research . . .

Why isn't anybody talking about the ohlins 22mm cartridges inserted in the stock 4cs uppers and lowers as a solution??? Only 1200 bucks or so


are the 3500 dollar complete ohlins forks or wp 48mm cone valve forks that much better???
8/26/2015 6:33pm
My good friend Fletcher is a solid vet A..really AA woods rider with lots of MotoX experience as well.
He is running bone stock 4cs on his new Husky 350 and swears its one of the best out of the box setups ever.
Superdave19
Posts
1101
Joined
10/10/2012
Location
Spring, TX, USA
8/26/2015 6:44pm
My good friend Fletcher is a solid vet A..really AA woods rider with lots of MotoX experience as well. He is running bone stock 4cs on...
My good friend Fletcher is a solid vet A..really AA woods rider with lots of MotoX experience as well.
He is running bone stock 4cs on his new Husky 350 and swears its one of the best out of the box setups ever.
Hmmm- I understand everyone feels something different, and I'm glad he digs them.
Thelen20
Posts
2060
Joined
11/28/2009
Location
Marshall, TX, USA
8/26/2015 6:45pm Edited Date/Time 8/26/2015 6:46pm
My good friend Fletcher is a solid vet A..really AA woods rider with lots of MotoX experience as well. He is running bone stock 4cs on...
My good friend Fletcher is a solid vet A..really AA woods rider with lots of MotoX experience as well.
He is running bone stock 4cs on his new Husky 350 and swears its one of the best out of the box setups ever.
I'm pumped for your buddy, no revalve or anything???

But read my post earlier in this thread, the 4cs ship has sailed for me, going a different direction without a doubt and I am not in the minority, your buddy is
Titan1
Posts
9417
Joined
2/3/2010
Location
Lehi, UT, USA
8/26/2015 6:46pm
My good friend Fletcher is a solid vet A..really AA woods rider with lots of MotoX experience as well. He is running bone stock 4cs on...
My good friend Fletcher is a solid vet A..really AA woods rider with lots of MotoX experience as well.
He is running bone stock 4cs on his new Husky 350 and swears its one of the best out of the box setups ever.
People seem to find that the Husky 4cs forks can be made to work well in stock form...but the KTM 4cs (on the XC line) is a drastically different story.
Calhoun117
Posts
72
Joined
1/22/2015
Location
Altoona, PA, USA
8/26/2015 6:51pm
Thank god I don't have fork problems Whistling Cool LOVE THEESE THINGS!

Post a reply to: WP 4cs forks

The Latest