Pros | Cons |
Exceptional heat resistance – they remain stable even at temperatures reaching 800°C–1000°C. | High costs – these carbon kits can hit ranges of US$3,000–US$5,000, especially if you get a kit. |
Consistency – even under high pressures, the pedal feel remains stable, letting you brake with confidence. | Unsuitable for daily use – for these kits, optimal friction is at 300°C, which normal driving speeds will not be able to generate. |
50% lighter – the composition of carbon ceramic makes for a brake kit that is only half as heavy, reducing resistance and effects of inertia. | Impact vulnerability – while highly heat-resistant, the lighter carbon ceramic will form micro cracks upon impact. |
Better fade control – the carbon ceramic rotors maintain a stable friction coefficient (typically 0.45–0.50 µ), which means more uniform braking even at high speeds. | Specialized maintenance – carbon ceramic surfaces are not easily machined, any surface defects usually mean you’ll need a replacement. |
High-durability – these brakes are 4-5x more likely to last in a track cycle, making them ideal for endurance tests like consistent racing performance. | Specific compatibility – these high-performance brakes are only compatible with pads |
Better debris control – these reinforced brake units are less likely to generate dust, keeping your brake components cleaner for better aerodynamics. |
Pros | Cons |
Resilience – unlike carbon composites, steel have a better tolerance for thermal cycling, reducing need for replacements. | Heavy – steel discs are 50-60% heavier than carbon composite brakes, meaning it takes more friction and force to stop the effects of inertia. |
Cost-effective – a standard steel rotor kit is priced anywhere between US$500–$2,000, almost 10x cheaper than a carbon composite kit. | Heat fading – these alloyed rotors are not built for heat, you’ll see loss in braking performance between 600–650°C and a softening of pedal feel. |
Low temperature performance – these brakes have a friction coefficient between 0.35–0.45 µ, no warm-up laps needed. | Thermal distortion – repeated thermal cycles can cause warps and cracks that will need frequent maintenance, if you race. |
Better impact resistance – steel alloys have a tightly packed composition for better impact management. This means lesser cracks, breaks, or damage that needs replacements. | Heat soak – steel’s high thermal conductivity means , requiring extensive cooling setups that can cost more. |
Easier to service – you can simply re-surface your warped discs for cheap and they’ll be good as new. | Shorter lifespan – steel rotors last only 20-30% of what carbon ceramic discs can withstand. |
Wider compatibility – brakes kits with steel rotors are often compatible with a large variety of brake pads, saves on maintenance costs. | More debris – steel disc generate more iron oxide dust per rotation which can potentially clog cooling ducts and lower aerodynamics. |
Factor | Carbon Ceramic Brakes | Steel Brakes |
Heat Resistance | Stable up to 1000°C, virtually fade-proof under repeated heavy braking. | Reliable up to 600–650°C, but fade begins beyond this threshold. |
Weight Savings | Up to 50% lighter (6 kg vs. 12–14 kg per rotor), reducing unsprung mass and rotational inertia. | Heavier (12–14 kg per rotor), increasing load on suspension and reducing acceleration gains. |
Consistency | Friction coefficient remains stable (~0.45–0.50 µ) lap after lap, critical for endurance racing. | Good consistency at moderate temps, but prone to heat soak and soft pedal feel in extended stints. |
Durability | Lasts 3–5x longer than steel rotors in track cycles; low wear with proper use. | Typically wears out faster, requiring resurfacing or replacement after heavy track use. |
Maintenance | Specialized — cannot be machined; replacement only. Requires ceramic-specific pads. | Serviceable — can be machined, resurfaced, or paired with a wide range of pads. |
Cold Performance | Suboptimal below 300°C, often squealing or feeling “dead” at low temps. | Strong bite from cold (0–200°C), ideal for mixed-use or short sprints. |
Cost | Premium pricing: US$12,000–20,000 kits, replacements US$3,000–5,000 each. | Accessible: US$500–2,000 per kit, far cheaper per cycle. |