That looks remarkably similar to my Trek Checkpoint.
And the steerer is a similar height. Just checked (no pun intended) and it’s 30mm. Inside the diameter rule of thumb above. Yours is maybe slightly longer (40mm?) but it looks ok to me.
Mind you, I don’t have that 10mm collar so is yours really 50mm…
Last edited by choddo; 02-09-26 at 10:44 PM.