Upgrade to enjoy this feature!
Vital MX fantasy is free to play, but Premium users receive great benefits. Premium benefits include:
- View and download rider stats
- Pick trends
- Create a private league
- And more!
Only $10 for all 2026 SX, MX, and SMX series.
220lbs rider + gear
Thanks I found it on the RT site. Bit to heavy for me 175 lbs.
make sure to get one with the external adjustable spring preload. It makes a big difference in getting comfortable setting up the bike for yourself.
I’ve got 50 hours on my AER… Was going to do a refresh and revalve
FC pitched me a spring conversion instead of be about the same price
Do you guys find it drastically better?
The Shop
Free shipping: VITALMX
Luxon 4-Post Bar Mounts
$189.95 - $239.95
DeCal Works Huge Plastic Inventory of UFO and Polisport kits.
Just one guy's opinion - a Vet B rider - and for ref: my experience is with KYB SSS forks on Yamahas, KYB A-kit forks on Hondas and Yamahas (both spring and air PSF1s), SHOWA forks on Hondas, and stock AER + AER with KYB insert forks on KTMs --- here is my feedback relative to AER-based forks:
(1) AER forks are quite polarizing but it's hard for me to tell if people have spent the 30m you need to trial-and-error with them to use them correctly. They are super easy to set up if you learn them I've found. I honestly like them and haven't given up. It's hard not to get drawn into the hype - and I did - and I had KYB-converted AER forks before I even rode my KTMs. I wouldn't do this again, I jumped the gun.
(2) KYB-converted AER forks are quite nice, better feel than stock AER forks so far for me, but "different" = a key descriptor. I'll need more time to articulate "different" and to see if revalved AER forks can be as good.
(3) KYB forks on Yamahas are my favorite --- the chassis/fork combo is a real thing (i.e. just dropping KYBs onto a KTM doesn't make it a Yamaha) ---> KYB forks on a KTM are nice, but not as developed/evolved as a KYB forks on a Yamaha --- there's just no replacement for the oodles of development/testing/tailoring Yamaha has done to get to the point they are --- it's a HUGE advantage. Summary: Keep your expectations in check.
-------------------------------------------------------------------------------------------------------
Gotta run, will finish these thoughts ^^^ later, but for now:
A spring conversion with adjustable spring preload sounds like an awesome setup to me --- this is where I would probably start if I was starting over on KTM forks.
FWIW - here's another aspect to consider regarding KTM forks - weight:
(1) Stock AER forks revalved by AEO (stock 2022 KTM 350 SX-F) = 16.6 lbs
(2) AER forks with KYB inserts + billet lugs + billet spring tubes set up by Enzo Racing (2022 KTM 350 SX-F) = 21.2 lbs --- surprising!
(3) Stock KYB SSS forks (2023 YZ450F) = 19.4 lbs
*** SUMMARY = 4.6 lbs difference between stock AER forks and AER w/ KYB conversion = VERY NOTICEABLE - AND NOT IN A GOOD WAY FOR MY RIDING STYLE & BIKE FEEL PREFERENCE (OTHERS HAVE DIFFERENT PREFERENCES, SEE BELOW) ***
For the ~ 5 pound weight penalty that comes with the KYB inserts/billet lugs, I think I want to make the AER forks work REALLY well w/ a revalve ---> The lightweight aspect is one of the reasons I wanted to try 19-22 KTMs --- and the extra weight on forks is not great for me/my setup preferences, especially on singletrack.
I'm now going to try Dialed Mfg's spring conversion kit that uses KYB cartridges/springs but doesn't use billet lugs to see if I can find a happier middle ground. More to come on this experiment whenever I can fit it in.
Either way, I am splitting hairs here - so be honest with yourself and stay out of your head or it will get very costly for MINIMAL gain - and a lot more weight if you're generally satisfied with stock AER forks. Obviously your mileage may vary ...
Why don't you give MX-tech a call? I'm sure they'd be happy to discuss the weight of a set of Raven carts inside Xact legs. That would be my pick.
Heck, they might even know what the competition weighs (6500 kit, Dal Saggio, WP single-sided spring kit, KYB in various configs, etc).
It's not a negative. I prefer the extra weight, bike is better balanced in the air and traction and corner entry feels much better.
The WP single sided spring kit almost became to heavy when I tested it a few years ago, but not the dual spring.
Awesome point - riding style / bike feel preferences play a major role here.
Hopefully the weight comparisons get you guys down your preferred paths.
* I added a few comments above to clarify who did my forks for comparison to Race Tech, etc. Also edited verbiage around bike preferences to de-bias my comments (I'm trying 19-22 KTMs primarily for weight reduction).
I got a K Tec spring conversion including spring for $ 300.00
I'm pretty happy I found it with basically.43 mm spring.
Post a reply to: WP Xact spring conversion kit.