Will KYB forks from YZ450F fit a Beta 250RR?

[Arielto]

Hi,

I have an opportunity to buy at a significant discount a brand new fork that is coming off a 2020 Yamaha YZ450F. The idea is to re-valve it and use it on my 2021 Beta 250RR.

Unfortunately, I do not have access to the KYB fork for measurements and I am not able to figure out if it will fit the front wheel, axle, spacers, or the Nissin caliper of the Beta?

Your experience and feedback will be greatly appreciated.

Thank you,
Ariel

[F5 Dave]

I have no idea, but having done two conversations of KYB onto GG bikes I will offer:

Braking do caliper spacers in different sizes to use where larger discs are fitted. You just swap the pins out and slide in new replacement mount.

Spring and preload will be waay too much from 450 and it will ride high. (As my mates does, because hes lazy) Easy enough to fix when being revalved. (Which he also needs to do, but see reason one, sigh).