LYKA - Drawn where? In the AIP Charts? Or for the actual procedure calculations? Actually, it doesn't really matter, to answer your question. The procedures are calculated assuming the speed ranges appropriate to the aircraft category.
The 185 kts you quote would be the max speed during the intermediate "phase" (see PANSOPS for definition) for a Cat D aircraft.
That means "just what it says on the tin" - you can use any speed up to that maximum and you'll be covered in terms of obstacle clearance. If you need to use a higher speed, you should use the procedure for the next category up.