KTM Forks On Husky

What year is bike

Sometimes when converting AER to KYB, the length changes, depending on what exact KYB cartridge is used.   So, your forks may not be exactly 10mm longer than the Husky forks.  Put them side by side and measure.     User @cwtoyota on here is very knowledgeable about these conversions and the differences.  He'll probably chime in.

The assembly length depends on the parts you used and some other factors.
Did you buy the forks as is, or did you install the KYB setup yourself?

WP / KTM air forks are measured from the center of the axle to the top of the upper tube, excluding the fork cap.
Stock AER-48 forks from 2016 to 2020 models are 950mm in length with a 577mm upper tube.
2021+ KTM, GasGas and Rockstar Editions all have the same 950mm in length with a 577mm upper tube.
2021+ Husqvarna standard motocross models are 940mm in length with a 567mm upper tube.

I don't like seeing forks that end up more than a few millimeters over the stock length.
Increased fork length decreases the distance between the bushings.
I advise against assembling forks longer than 953mm with the 577mm upper tubes.
I advise against assembling forks longer than 943mm with the 567mm upper tubes.

In my experience, a slightly shorter fork works well on the last two generations of KTM chassis.

I have some information on KYB cartridges at the link below that may or may not be helpful.
https://dialedmfg.com/technical-information.html

For reference the CC forks used on the XC bikes are 10mm shorter than AER on the equivalent SX. That difference has something to do with the AER having a bypass slot to let the positive and negative air chambers equalize. The AER will sag more when you initially load it from fully extended and you are looking for a consistent sag between the two forks.

haha, I have the exact same scenario. Put my kyb conversion from my ktm on my Husky, one side only, and matched up the axle to slide through. The top of the fork was hitting my bars so decided against it. Way longer!