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Brake discs for sport and racing
Brake discs for sport and competition use: over 6,100 Black Diamond references, grooved, drilled and combined, for front and rear axles, with anti-corrosion treatment and fitment by make and model.
Filter by vehicle to see the discs in your size, and pair them with brake pads rated for the same kind of use.
Grooved, drilled or combined
A performance brake disc does not stop harder because it is a performance part: it stops more consistently once it is hot. The difference is in the machining of the face, which clears gas and pad dust and holds the friction coefficient through repeated braking.
- Grooved. Channels machined into the face. The most balanced option: it improves clearing without compromising the structure, and it is reasonably kind to pad life.
- Drilled. Through holes. Sheds heat better in isolated hard stops and is the best looking of the three, but it concentrates stress around the holes.
- Combined. Grooves and holes together, for mixed road use with the occasional track day.
How to choose your brake discs
- Exact size. Diameter, thickness and hub type have to match the original. A larger diameter disc needs different calipers and carriers.
- Axle. The fronts take most of the work; many cars run a vented disc at the front and a solid one at the rear.
- Use. Grooved for town and road. For track sessions, consider the combined pattern and a pad with a wider temperature range.
- Always in pairs. Both discs on an axle are replaced together, never one on its own.
Finish the braking system
A new disc behind a worn pad achieves nothing. There are brake pads and braided brake lines, which remove the flex of a rubber hose and firm up the pedal.
Frequently asked questions
Do drilled discs crack?
The holes concentrate thermal stress, so heavy track use can raise micro-cracking around them. For that kind of work, grooved or combined is the sounder choice.
Do the pads have to be changed with the discs?
Yes. A used pad carries the imprint of the previous disc and will not bed evenly on a new face, which drags out the bedding-in and wears the disc unevenly.
Do new discs need bedding in?
Yes. For the first few hundred miles, avoid hard, sustained braking so the pad transfers material evenly.
Can I run performance discs with the standard calipers?
If you keep the original size, yes — they are a direct replacement. It is changing diameter that requires different calipers and carriers.