I did this and immediately took it back out. Also tried the Ktech spring conversion. Hated them both. Just feels zingy and off. But people love spring conversions. Have a 23 250sxf and 24 250sx. Stock everything and they feel great after break in.
Yep, without valving changes no drop-in single spring conversion is going to feel good. Especially if you're riding moto, the 2021+ version of the AER forks that you have works decently well out of the box, though it still suffers from the rate change due to temperature like any air spring does.
My opinion? Yes, unless you're racing motocross. AER will always have some crustiness/stiction that you don't get with a spring fork. It's not as big a deal in moto, and the AER progression is actually a good thing for moto. But in the woods, that stiction tiring. I also had a lot of issues with air pressure, I would get 6-8 psi of pressure increase from the start of a 2 hour harescramble to the end. It was either too soft at the start or too harsh at the finish. My first race after spring converting, I was still having fun at the end of the race, something that never happened with AER for me.
I’m interested in this part for my 23 Husky FC 250. Would this work for motocross or just woods? I’m a C class Moto guy but I’m not liking the air forks.