256mm. disc brakes into T200 Kalos

[Racoon]

If the brake system is up to snuff, they are actually very good. If your discs and drums are old, or even original I would recommend either replacing or having them turned. Believe it or not there is a slight roughness on good/new drums and rotors that gets worn away as the brake system ages. When that happens your brakes will take MUCH longer to bring the vehicle to a stop.

there is no "roughness" on new drums. You don't need to change them unless you clearly see they went bent, cracked, or worn not equally.

[Eg.h2o]

Drums and rotors over time can get “glazed” which will make them too smooth and lower the stopping ability. Yes there is a “roughness” to new rotors and drums. Take a soft rag to them when new and you will feel snagging. Here is a simple explanation.
https://ricksfreeautorepairadvice.co...-rotor-finish/
just think of trying to stop your car on black ice compared to dry concrete.
smoother is better…..to a point.