Speed Ramp Trail Not Showing

You need to expand the track vertically.

Please next time make a screenshot of a much larger area preferably the entire UI.

Right-Click the Fx icon on the clip and select: Time Remapping -> Speed

On the speed bar, ctrl-click two keyframes a little in from the begining and a little in from the end

Drag the bar down to the desired speed

Separate the in marker from each other and on the end keyframe seperate the  keyframe markers

  that creates the ramp(s)

That creates the 

I'm still haveing trouble showing it maybe i'm not getting it. Can you explain how to do it?

It's working here with 24.5 and yesterday's beta.

Usually you make two keyframes for a speed ramp. Then the ramp part is pulling those little markers apart. Yours has just one keyframe and you pulled the ramp apart.