>>1014118Pic related
Keep in mind you want to know the axle-to-crown on the current fork and match it or you could f--- the handling
1" threadLESS is an option but requires a new headset (or just the top half of the headset, bottoms are actually cross-compatible between threaded and threadless 1")
If you aren't riding on MTB trail replace it with a suspension-corrected rigid fork of the correct size imho.