WP AER 48 Forks

resetjet
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resetjet 12/24/2015 12:36pm
12/24/2015 12:36pm
WP has put out a lot of different forks over the years. All the MX ones have pretty much one thing in common.

What are the odds that they finally picked a winner?
gpracer36
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gpracer36 1/11/2016 1:45pm
1/11/2016 1:45pm
anyone else have a report?
Motofinne
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Motofinne 1/11/2016 1:52pm
1/11/2016 1:52pm
It's been really cold in Finland(-15 to -30 Celsius) and 3 guys i know have had the same problem with the AER48 fork. When the temperature gets to about -10 the fork "collapses".

KTM in Finland has a solution to it though. I know almost nothing on suspension service so don't quote me on this but this is what i heard today.

There is a rubber o ring that freezes/gets too hard and that's why the fork collapses if the temperature outside is really low. The solution is to put some vaseline on the o ring. I have no idea what o ring the guys were talking about but i think i'll know more by the end of the week when my FE 450 should be at my dealer.
gpracer36
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gpracer36 1/11/2016 1:58pm
1/11/2016 1:58pm
Motofinne wrote:
It's been really cold in Finland(-15 to -30 Celsius) and 3 guys i know have had the same problem with the AER48 fork. When the temperature...
It's been really cold in Finland(-15 to -30 Celsius) and 3 guys i know have had the same problem with the AER48 fork. When the temperature gets to about -10 the fork "collapses".

KTM in Finland has a solution to it though. I know almost nothing on suspension service so don't quote me on this but this is what i heard today.

There is a rubber o ring that freezes/gets too hard and that's why the fork collapses if the temperature outside is really low. The solution is to put some vaseline on the o ring. I have no idea what o ring the guys were talking about but i think i'll know more by the end of the week when my FE 450 should be at my dealer.
aside from the freezing orings, how do they like it compared to the 4cs or cone valve?

The Shop

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Motofinne
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Motofinne 1/11/2016 2:10pm
1/11/2016 2:10pm
Motofinne wrote:
It's been really cold in Finland(-15 to -30 Celsius) and 3 guys i know have had the same problem with the AER48 fork. When the temperature...
It's been really cold in Finland(-15 to -30 Celsius) and 3 guys i know have had the same problem with the AER48 fork. When the temperature gets to about -10 the fork "collapses".

KTM in Finland has a solution to it though. I know almost nothing on suspension service so don't quote me on this but this is what i heard today.

There is a rubber o ring that freezes/gets too hard and that's why the fork collapses if the temperature outside is really low. The solution is to put some vaseline on the o ring. I have no idea what o ring the guys were talking about but i think i'll know more by the end of the week when my FE 450 should be at my dealer.
gpracer36 wrote:
aside from the freezing orings, how do they like it compared to the 4cs or cone valve?
Non of them have ever been on CV forks, but one of them will probably get CV forks(He's a Finnish pro rider, top 10 in mx1).

But the AER forks are better than the 4cs forks. They like them a lot! They are also the best air forks at the moment according to Keefer and i think ML512 said that his early impressions was that they were better than the other air forks.
CarlinoJoeVideo
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CarlinoJoeVideo 1/11/2016 2:52pm
1/11/2016 2:52pm
If anyone gets the AER48 and doesn't like them. I have a Factory Connection revalved 4CS I'll trade...
Flipsid33
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Flipsid33 4/4/2016 11:56am
4/4/2016 11:56am
I've ridden and setup the AER.

Stock form was good but the air pressure was too high for me at 190lbs.

Dropped the pressure to 150psi and had a better feel. Stock setup you could feel some feed back through the bars in your hands. Explained like a slap on hard impacts.

Upon revalving them we were able to get the slap to go away. We changed the midvalve design up some going to a mechanical oring type. We got it to work surprising well.

I have heard of the failure with them getting stuck mid stroke but haven't had one myself.

With the fork sitting over time we are getting pressure building up in the outer chamber. Talking to WP about possible causes and a fix. It won't be long until SKF has a solution for the air side I'm sure.

This is the first I have heard of WP having a spring conversion. Not a bad move in my opinion. They have learned from the mistakes made by KYB and Showa.

One of the best fork setup I have ever ridden was a spring conversion on the Showa Tac.
mmcmx
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mmcmx 4/4/2016 12:02pm
4/4/2016 12:02pm
My friend will try out the spring conversion kit soon. I'll try to follow up with his impressions.
mx317
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mx317 4/4/2016 1:17pm
4/4/2016 1:17pm
Flipsid33 wrote:
I've ridden and setup the AER. Stock form was good but the air pressure was too high for me at 190lbs. Dropped the pressure to 150psi...
I've ridden and setup the AER.

Stock form was good but the air pressure was too high for me at 190lbs.

Dropped the pressure to 150psi and had a better feel. Stock setup you could feel some feed back through the bars in your hands. Explained like a slap on hard impacts.

Upon revalving them we were able to get the slap to go away. We changed the midvalve design up some going to a mechanical oring type. We got it to work surprising well.

I have heard of the failure with them getting stuck mid stroke but haven't had one myself.

With the fork sitting over time we are getting pressure building up in the outer chamber. Talking to WP about possible causes and a fix. It won't be long until SKF has a solution for the air side I'm sure.

This is the first I have heard of WP having a spring conversion. Not a bad move in my opinion. They have learned from the mistakes made by KYB and Showa.

One of the best fork setup I have ever ridden was a spring conversion on the Showa Tac.
Was it the Race Tech or MX Tech spring conversion on the TAC fork you liked so well?
CarlinoJoeVideo
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CarlinoJoeVideo 4/4/2016 3:11pm
4/4/2016 3:11pm
mmcmx wrote:
My friend will try out the spring conversion kit soon. I'll try to follow up with his impressions.
I have a set on 4CS with Factory Connection Revalve if he wants to trade for AER48s.
Digger29
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Digger29 4/4/2016 3:36pm
4/4/2016 3:36pm
mmcmx wrote:
My friend will try out the spring conversion kit soon. I'll try to follow up with his impressions.
I also heard about the spring conversation kit from someone who knows about it but he also said the WP will not be sending any to the US.
Billy-Benobo18 4/4/2016 3:50pm
4/4/2016 3:50pm
Sorry to be the dumbass here but who would ride a dirtbike hard enough in 14deg weather? Seriously? It's not a snowmobile bro.....
Flipsid33
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Flipsid33 4/4/2016 4:13pm
4/4/2016 4:13pm
mx317 wrote:
Was it the Race Tech or MX Tech spring conversion on the TAC fork you liked so well?
MXTech is the one I rode. CRF250R conversion

I have a buddy that has the race-tech conversion but it was an a KX450F. He seems pretty happy with it.



hellion
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hellion 4/4/2016 6:00pm
4/4/2016 6:00pm
Billy-Benobo18 wrote:
Sorry to be the dumbass here but who would ride a dirtbike hard enough in 14deg weather? Seriously? It's not a snowmobile bro.....
Billy, we ride every weekend year round. And in the cold months it's sometimes just below zero f here. All you really need to do is keep your hands warm and you'll be good. If the snow gets deep we will hammer out a loop and ride that until we're exhausted. Having a fork collapse many miles from the truck however would not be good. I'm happy KTM seems to be figuring out suspension. But I won't buy any bike with an air fork until that's the only option available.
Huckster
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Huckster 4/5/2016 4:12am
4/5/2016 4:12am
So is there a spring conversion kit available right now for the AER?
Billy-Benobo18 4/5/2016 4:20am
4/5/2016 4:20am
hellion wrote:
Billy, we ride every weekend year round. And in the cold months it's sometimes just below zero f here. All you really need to do is...
Billy, we ride every weekend year round. And in the cold months it's sometimes just below zero f here. All you really need to do is keep your hands warm and you'll be good. If the snow gets deep we will hammer out a loop and ride that until we're exhausted. Having a fork collapse many miles from the truck however would not be good. I'm happy KTM seems to be figuring out suspension. But I won't buy any bike with an air fork until that's the only option available.
Ruthless... But hey if u wanna ride you wanna ride..
mmcmx
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mmcmx 4/5/2016 4:44am
4/5/2016 4:44am
Huckster wrote:
So is there a spring conversion kit available right now for the AER?
WP spain already offers it yes.

Pit Row

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Huckster
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Huckster 4/5/2016 4:46am
4/5/2016 4:46am
Anyone in the USA?
Finnish_Flash_62 4/12/2016 2:17am
4/12/2016 2:17am
To everyone who's been riding a bit more with the AER48 (I have only about 6 hours of riding with them), how much pressure have you used in the fork? Just curious because I've heard that the pressures listed in the manual are a tad high.
Charles_Luhrman 7/12/2016 6:02pm
7/12/2016 6:02pm
I will be riding myn this weekend for the first time so we will see how it goes but I'm super pumped
Craig_Lambrecht 7/12/2016 9:05pm
7/12/2016 9:05pm
I love mine. Revalved and also running the Flexx bars
kb-450
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kb-450 7/12/2016 9:28pm
7/12/2016 9:28pm
Finnish_Flash_62 wrote:
To everyone who's been riding a bit more with the AER48 (I have only about 6 hours of riding with them), how much pressure have you...
To everyone who's been riding a bit more with the AER48 (I have only about 6 hours of riding with them), how much pressure have you used in the fork? Just curious because I've heard that the pressures listed in the manual are a tad high.
Just got the 17' KTM 450SX. I am running about 8 lbs lower than recommended in the manual. Coming off 4CS on '16 Husky FC450. Aer is by far and away better! 4CS is criminal.
kb-450
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kb-450 7/12/2016 9:29pm
7/12/2016 9:29pm


Craig_Lambrecht 7/13/2016 11:33am
7/13/2016 11:33am
Finnish_Flash_62 wrote:
To everyone who's been riding a bit more with the AER48 (I have only about 6 hours of riding with them), how much pressure have you...
To everyone who's been riding a bit more with the AER48 (I have only about 6 hours of riding with them), how much pressure have you used in the fork? Just curious because I've heard that the pressures listed in the manual are a tad high.
I run 145
kb-450
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kb-450 7/13/2016 11:41am
7/13/2016 11:41am
Running 138. I weigh 162.
PJRAUS
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PJRAUS 7/13/2016 2:14pm
7/13/2016 2:14pm
kb-450 wrote:
[img]https://p.vitalmx.com/photos/forums/2016/07/12/143381/s1200_20160712_202310.jpg[/img]


Hey KB 450, pretty sure a lot of guys would be very keen to hear all about how things are going with that new ktm!
You are the first person I've seen here with a17. Maybe you could start a new thread and let us know what you have found so far
Craig_Lambrecht 7/13/2016 5:21pm
7/13/2016 5:21pm
kb-450 wrote:
Running 138. I weigh 162.
Sounds about right. I'm 172 lbs.
You revalved or anything?
kb-450
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kb-450 7/18/2016 10:11am
7/18/2016 10:11am
No revalue yet. Got it Thursday, headed to the races on Friday.but I normally have Promotion set me up. No time this go around. But liked it a lot stock. May no do anything.
#76
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#76 8/27/2016 1:45pm
8/27/2016 1:45pm
Any riders with any more info on AER 48 set up please?, just got my 2017 KTM SXF 450.

Be good for a few base settings for people to use like:

Rider weight -
Pressure (lbs/psi) -
Rider ability -

Be helpful i think.....Smile

Ride on!.

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