DBA 13-15 Lotus Exige V6 (RHD Only) 5000 Series Slotted Rotor Ring w/NAS Lock Nuts (Rotor Only) - 52903.1S

Sharing all the benefits of the 4000 Series, 5000 Series rotors are a composite 2 piece direct replacement brake rotor. We use only the highest quality materials to ensure optimal performance under the most strenuous circumstances, combining high carbon cast iron rings with aerospace grade aluminium hats (T6061-T6) held together with National Aerospace Standards (NAS) bolts and crimp nuts.

5000 Series shares all of the performance technology featured in the 4000 Series, with the added benefits of further weight reduction and improved heat management via the aluminium hats.

The use of aerospace grade aluminium hats reduces the unsprung weight of the brake rotors, whilst allowing for uniform radial disc expansion throughout the cast iron rings and reduced heat transfer from disc to hub via the aluminium hats.

We offer both complete assemblies for first time replacement (hats and flat discs bolted together) along with replacement hats and flat disc rotors. This allows drivers to re use their DBA 5000 Series hats with DBA replacement flat discs (rings).

We recommend 5000 Series for high performance street vehicles, track day and club racing, rally applications and show vehicles.

Product Features:

• Two-Piece Design: Hat and rings sold as complete assemblies and as individual components, for more economical replacement options.
• Surface Design: Symmetrical slots and/or chamfered drill holes facilitate the exit of friction dust and gasses, for a quieter and more responsive pedal feel.
• DBA Aluma-Lite: Aluma-lite centre hat / bell made from extra lightweight 6061 T6 aircraft aluminium, reducing the unsprung weight for better vehicle handling and minimising heat transfer to the wheel hubs.
• Anti Rust: Painted non-friction areas to prevent rust and enhance appearance, or full En-shield coating to protect the rotor and alleviate the need for pre-installation cleaning.
• Bi-Directional Use: Symmetrical slotting and/or drilling for universal left/right use.
• Thermal Stability Profiling: Heat treatment cycles realign the microstructure of the iron, resulting in increased rotor stability and durability.
• Thermal Efficiency: Centre-split core castings for increased heat transfer and thermal efficiency.
• Thermographic Heat Paint: Paint markings change colour at specific temperature thresholds to assist with the monitoring of braking temperatures and rotor fatigue.
• CBN: CBN (Cubic Boron Nitride) machine turned finish, minimising disc thickness variation and the potential for pad "knock" and resulting premature wear.
• High Carbon Alloyed Iron: Formulation allows for optimal interaction with DBA's thermal stability profiling (TSP). Increases the capacity of the rotor to handle constant and extreme heat over prolonged periods.
• Kangaroo Paw: Unique Kangaroo Paw vane design for up to 20% better heat dissipation, increasing braking effectiveness and prolonging brake life.
• NAS Bolts & Nuts: Unique Kangaroo Paw vein design for up to 20% better heat dissipation, increasing braking effectiveness and prolonging brake life.

• Lotus Exige V6 (RHD Only) 2013-2015