Revalved AER vs alternatives

Bruce372
Profile picture for user Bruce372
Posts
6329
Joined
4/1/2008
Location
US
Bruce372 4/24/2019 7:54pm
4/24/2019 7:54pm
erik_94COBRA wrote:
Debating what to do with the forks on my '19 KTM 450 SXF. The stock AER forks work good in some areas and leaves a lot...
Debating what to do with the forks on my '19 KTM 450 SXF. The stock AER forks work good in some areas and leaves a lot to be desired in others.

Would like to hear people's experiences with their revalved AER forks. I have had a set of WP Closed Chamber forks setup for my '17 Husky TC250 and they are great, but I didn't get to try out the AER after a revalve.

Trying to decide between having the AERs worked over ($$), having the WP CC forks setup for the 450 ($$), or opening my wallet and getting the KYB AOS inserts ($$$$).

Thoughts?

Flipsid33 wrote:
The biggest issue with the 19 AER fork is the change to the negative air chamber. They decreased the volume of the chamber so you can...
The biggest issue with the 19 AER fork is the change to the negative air chamber. They decreased the volume of the chamber so you can run a higher pressure more effectively. It doesn't work. Most of our riders and customers were happier with the older version.

If you revalve the fork the negative air chamber remains the same. I feel that the settings in the damper side to the fork are decent. With the exception of the mid valve having no float they are probably one of the better setups. The switched the bleed from the rebound side to the compression side of the midvalve.

Fork plushness I would recommend the AER Leaf spring mid-valve and the 18 negative chamber parts.

For a super confident and light front end convert them to the Lucky system. Best conversion for the price and it is really good now.

I like the Sphere over the KYB setup for sure.

We have done tons of all 4 setups and have many hours testing and racing.
Brian, do you have a part number or supply of those 17 to 18 negative air chamber spacers?

Thanks.
Bruce372
Profile picture for user Bruce372
Posts
6329
Joined
4/1/2008
Location
US
Bruce372 4/25/2019 9:04pm
4/25/2019 9:04pm
I tried the MXT mid valve, it's well made and has a lot of tuning options for sure...

That said, I've just put a check plate off a 2stroke and I really like it better
lukemoto
Profile picture for user lukemoto
Posts
256
Joined
8/8/2018
Location
Mukwonago, WI US
lukemoto 4/26/2019 1:33pm
4/26/2019 1:33pm
I'm currently riding stock aer48s on a 18 250sx, I weigh 210-215 @ 6'1"... I love the feeling of the forks >150psi in braking bumps and small chop but then I bottom out over harder landings. I'm on the fence about the aer 48r or going straight for the lucky setup. I had tendon/nerve surgery in my hand last October so I'm looking for the plushest ride possible while knowing that if I flat land or slap the front down I wont bottom so hard and sting my hands...
AJ565
Profile picture for user AJ565
Posts
2332
Joined
3/12/2012
Location
San Antonio, TX US
AJ565 4/26/2019 2:09pm
4/26/2019 2:09pm
lukemoto wrote:
I'm currently riding stock aer48s on a 18 250sx, I weigh 210-215 @ 6'1"... I love the feeling of the forks >150psi in braking bumps and...
I'm currently riding stock aer48s on a 18 250sx, I weigh 210-215 @ 6'1"... I love the feeling of the forks >150psi in braking bumps and small chop but then I bottom out over harder landings. I'm on the fence about the aer 48r or going straight for the lucky setup. I had tendon/nerve surgery in my hand last October so I'm looking for the plushest ride possible while knowing that if I flat land or slap the front down I wont bottom so hard and sting my hands...
I was running 151 on tracks with smaller jumps and 156 on sand and tracks with bigger jumps and I'm 173lbs and would always be close to bottoming. 150 with your weight is why they bottom. Get them revalved and run more pressure and that will help some. Your best bet for bottom resistance and plush will be to get a set of CV or a KYB swap that are set up for your weight. I hope you also have a stiffer rear spring, the stock one was to light for me, I think I have a 45 on it now.

The Shop

See All »
The_Diablo 4/26/2019 4:04pm
4/26/2019 4:04pm
I went with the Kreft revalve control, and I highly recomend them. I also had them revalve the shock, and do the cross hatching on the fork sliders and shock shaft. All in $2000. This is one the best setups that I have ever ridin on.

The suspension is really plush but also very firm. I haven't had a suspension that is this firm and also be able to handle nasty breaking bumps this well. I let my friends ride it, both own 19 kx 450's and they both got off my bike shaking there heads. Awesome stuff. The guys at Kreft were also very good to deal with. My initial call took about 35 mins, they didn't try to rush me. The absolutely nailed my setup.

Its worth looking into. Bike is a 2018.5 rockstar fc450.
2
lukemoto
Profile picture for user lukemoto
Posts
256
Joined
8/8/2018
Location
Mukwonago, WI US
lukemoto 4/26/2019 4:15pm
4/26/2019 4:15pm
lukemoto wrote:
I'm currently riding stock aer48s on a 18 250sx, I weigh 210-215 @ 6'1"... I love the feeling of the forks >150psi in braking bumps and...
I'm currently riding stock aer48s on a 18 250sx, I weigh 210-215 @ 6'1"... I love the feeling of the forks >150psi in braking bumps and small chop but then I bottom out over harder landings. I'm on the fence about the aer 48r or going straight for the lucky setup. I had tendon/nerve surgery in my hand last October so I'm looking for the plushest ride possible while knowing that if I flat land or slap the front down I wont bottom so hard and sting my hands...
AJ565 wrote:
I was running 151 on tracks with smaller jumps and 156 on sand and tracks with bigger jumps and I'm 173lbs and would always be close...
I was running 151 on tracks with smaller jumps and 156 on sand and tracks with bigger jumps and I'm 173lbs and would always be close to bottoming. 150 with your weight is why they bottom. Get them revalved and run more pressure and that will help some. Your best bet for bottom resistance and plush will be to get a set of CV or a KYB swap that are set up for your weight. I hope you also have a stiffer rear spring, the stock one was to light for me, I think I have a 45 on it now.
I normally run 160psi but that feels super harsh for me even with the dampening backed way off. Im planning on doing my shock the same time as my forks.
I began riding again last season after a 6year hiatus and shortly after that I severed a couple nerves and tendons in my left hand, and that's why I didn't do my suspension over winter because I thought I'd be stuck riding trails but my hand healed way better than expected and now I'm finally getting back to motocross Smile
smx94
Profile picture for user smx94
Posts
60
Joined
11/25/2013
Location
GB
smx94 4/27/2019 6:00am
4/27/2019 6:00am
Just get the wp cone valves, and move them onto your next bike, they have good re sale value if you change bike brands.
There is nothing better than new cv forks set up for you .
Ohlins are a waste of money .
re valves disappear when you sell the bike and dont add value.
Markee
Profile picture for user Markee
Posts
3659
Joined
4/15/2013
Location
Suffolk, VA US
Markee 4/27/2019 6:04am
4/27/2019 6:04am
lukemoto wrote:
I'm currently riding stock aer48s on a 18 250sx, I weigh 210-215 @ 6'1"... I love the feeling of the forks >150psi in braking bumps and...
I'm currently riding stock aer48s on a 18 250sx, I weigh 210-215 @ 6'1"... I love the feeling of the forks >150psi in braking bumps and small chop but then I bottom out over harder landings. I'm on the fence about the aer 48r or going straight for the lucky setup. I had tendon/nerve surgery in my hand last October so I'm looking for the plushest ride possible while knowing that if I flat land or slap the front down I wont bottom so hard and sting my hands...
AJ565 wrote:
I was running 151 on tracks with smaller jumps and 156 on sand and tracks with bigger jumps and I'm 173lbs and would always be close...
I was running 151 on tracks with smaller jumps and 156 on sand and tracks with bigger jumps and I'm 173lbs and would always be close to bottoming. 150 with your weight is why they bottom. Get them revalved and run more pressure and that will help some. Your best bet for bottom resistance and plush will be to get a set of CV or a KYB swap that are set up for your weight. I hope you also have a stiffer rear spring, the stock one was to light for me, I think I have a 45 on it now.
lukemoto wrote:
I normally run 160psi but that feels super harsh for me even with the dampening backed way off. Im planning on doing my shock the same...
I normally run 160psi but that feels super harsh for me even with the dampening backed way off. Im planning on doing my shock the same time as my forks.
I began riding again last season after a 6year hiatus and shortly after that I severed a couple nerves and tendons in my left hand, and that's why I didn't do my suspension over winter because I thought I'd be stuck riding trails but my hand healed way better than expected and now I'm finally getting back to motocross Smile
I was running stock valving, 150psi @ 175lbs. with out gear. Really felt fine in practice trim, race days where intensity is a little more I would blow through a couple times.

Got my new setup back from kreft. Now running 136psi. Gives you an idea on the wide range of setups.
Huckster
Profile picture for user Huckster
Posts
2585
Joined
8/15/2006
Location
Woodstock , NY US
Huckster 4/27/2019 9:32am
4/27/2019 9:32am
Anyone have a ride report on the KYB SSS conversion that Turbojez sells? I just sold my CV's and have 17 AER's that are revalved. Curious how the KYB conversion compares
Flipsid33
Profile picture for user Flipsid33
Posts
167
Joined
11/24/2011
Location
Canyon Country, CA US
Flipsid33 4/28/2019 8:59am
4/28/2019 8:59am
erik_94COBRA wrote:
Debating what to do with the forks on my '19 KTM 450 SXF. The stock AER forks work good in some areas and leaves a lot...
Debating what to do with the forks on my '19 KTM 450 SXF. The stock AER forks work good in some areas and leaves a lot to be desired in others.

Would like to hear people's experiences with their revalved AER forks. I have had a set of WP Closed Chamber forks setup for my '17 Husky TC250 and they are great, but I didn't get to try out the AER after a revalve.

Trying to decide between having the AERs worked over ($$), having the WP CC forks setup for the 450 ($$), or opening my wallet and getting the KYB AOS inserts ($$$$).

Thoughts?

Flipsid33 wrote:
The biggest issue with the 19 AER fork is the change to the negative air chamber. They decreased the volume of the chamber so you can...
The biggest issue with the 19 AER fork is the change to the negative air chamber. They decreased the volume of the chamber so you can run a higher pressure more effectively. It doesn't work. Most of our riders and customers were happier with the older version.

If you revalve the fork the negative air chamber remains the same. I feel that the settings in the damper side to the fork are decent. With the exception of the mid valve having no float they are probably one of the better setups. The switched the bleed from the rebound side to the compression side of the midvalve.

Fork plushness I would recommend the AER Leaf spring mid-valve and the 18 negative chamber parts.

For a super confident and light front end convert them to the Lucky system. Best conversion for the price and it is really good now.

I like the Sphere over the KYB setup for sure.

We have done tons of all 4 setups and have many hours testing and racing.
Bruce372 wrote:
Brian, do you have a part number or supply of those 17 to 18 negative air chamber spacers?

Thanks.
The existing part can be machined down. In order to get the part you have to buy the air piston rod assembly.
atrdrvr7
Profile picture for user atrdrvr7
Posts
438
Joined
1/15/2013
Location
Houston, TX US
atrdrvr7 4/28/2019 6:36pm
4/28/2019 6:36pm Edited Date/Time 4/28/2019 7:26pm
I have 2 rides on a set of Ohlins RXF 48's. Cant even put it to words how much better the bike is now. The front end feels like it's glued to the ground vs that very vague feeling the AER's have. Tracks awesome through ruts. Much plusher ride in braking bumps and chop. The only area the AER's come up better are in bottoming resistance on very big hits. Overall the single best upgrade I made to the bike.
4
ChubbyCat113
Profile picture for user ChubbyCat113
Posts
213
Joined
1/26/2016
Location
Wheelersburg, OH US
ChubbyCat113 4/29/2019 5:51am
4/29/2019 5:51am
Call ProTune Suspension and get the MX Tech Lucky System. I went this route because everything is new as where most KYB conversions they'll use donor parts. Everything it probably going to run you about $1200. You're getting a good system without breaking the bank! I kept putting it off and finally bit the bullet! I love it so far, feels more like my 13
rollin64caddy 4/29/2019 2:06pm
4/29/2019 2:06pm
ChubbyCat113 wrote:
Call ProTune Suspension and get the MX Tech Lucky System. I went this route because everything is new as where most KYB conversions they'll use donor...
Call ProTune Suspension and get the MX Tech Lucky System. I went this route because everything is new as where most KYB conversions they'll use donor parts. Everything it probably going to run you about $1200. You're getting a good system without breaking the bank! I kept putting it off and finally bit the bullet! I love it so far, feels more like my 13
so is that a sss conversion? If so, that's a good deal. I have the race tech spring conversion and its ok but im looking for a little more.
Flipsid33
Profile picture for user Flipsid33
Posts
167
Joined
11/24/2011
Location
Canyon Country, CA US
Flipsid33 4/29/2019 2:33pm
4/29/2019 2:33pm
ChubbyCat113 wrote:
Call ProTune Suspension and get the MX Tech Lucky System. I went this route because everything is new as where most KYB conversions they'll use donor...
Call ProTune Suspension and get the MX Tech Lucky System. I went this route because everything is new as where most KYB conversions they'll use donor parts. Everything it probably going to run you about $1200. You're getting a good system without breaking the bank! I kept putting it off and finally bit the bullet! I love it so far, feels more like my 13
rollin64caddy wrote:
so is that a sss conversion? If so, that's a good deal. I have the race tech spring conversion and its ok but im looking for...
so is that a sss conversion? If so, that's a good deal. I have the race tech spring conversion and its ok but im looking for a little more.
The lucky kit is a dual coil open cartridge system with a huck valve(speed sensitive bottom control).

Currently back ordered right now but we are taking orders for those who want them before they back order again.
rollin64caddy 4/29/2019 5:26pm
4/29/2019 5:26pm
Ill have to call. Any idea when they will be shipping orders?
katoom350
Profile picture for user katoom350
Posts
98
Joined
9/4/2017
Location
AZ US
katoom350 4/29/2019 8:39pm
4/29/2019 8:39pm Edited Date/Time 4/29/2019 8:40pm
Just to add some more confusion to this thread...I’m thinking I’m gonna send mine off to AHM in SoCal. Had factory connection do my last set of AER’s and they were good. Had them valve it for GP/WORCS and I could both Moto, and off-road with it just fine. Just trying something different is all. Sold the last bike...now on a 450.
skyrebel88
Profile picture for user skyrebel88
Posts
186
Joined
1/29/2015
Location
New Fairfield, CT US
skyrebel88 10/14/2022 12:45pm
10/14/2022 12:45pm
erik_94COBRA wrote:
Debating what to do with the forks on my '19 KTM 450 SXF. The stock AER forks work good in some areas and leaves a lot...
Debating what to do with the forks on my '19 KTM 450 SXF. The stock AER forks work good in some areas and leaves a lot to be desired in others.

Would like to hear people's experiences with their revalved AER forks. I have had a set of WP Closed Chamber forks setup for my '17 Husky TC250 and they are great, but I didn't get to try out the AER after a revalve.

Trying to decide between having the AERs worked over ($$), having the WP CC forks setup for the 450 ($$), or opening my wallet and getting the KYB AOS inserts ($$$$).

Thoughts?

Flipsid33 wrote:
The biggest issue with the 19 AER fork is the change to the negative air chamber. They decreased the volume of the chamber so you can...
The biggest issue with the 19 AER fork is the change to the negative air chamber. They decreased the volume of the chamber so you can run a higher pressure more effectively. It doesn't work. Most of our riders and customers were happier with the older version.

If you revalve the fork the negative air chamber remains the same. I feel that the settings in the damper side to the fork are decent. With the exception of the mid valve having no float they are probably one of the better setups. The switched the bleed from the rebound side to the compression side of the midvalve.

Fork plushness I would recommend the AER Leaf spring mid-valve and the 18 negative chamber parts.

For a super confident and light front end convert them to the Lucky system. Best conversion for the price and it is really good now.

I like the Sphere over the KYB setup for sure.

We have done tons of all 4 setups and have many hours testing and racing.
Do you literally mean flip the piston around cause there is a bleed on the rebound side?

Also for a slow B rider would suggest removing a face shim or two from the compression side of the mid valve and thats it? anything face shims from the compression side of the base valve?

Pit Row

See All »

Post a reply to: Revalved AER vs alternatives