Aston Martin DBX Brake Upgrade Guide: Floating Rotors & Carbon Ceramic Conversion
- Triton Motorsports
- 2 hours ago
- 6 min read
The Aston Martin DBX is, by a wide margin, the most demanding vehicle Aston Martin has ever asked its brakes to stop. As the brand's first-ever SUV, the DBX combines a curb weight close to 5,000 lbs with genuine sports-car performance ambitions — which means the braking system has to work harder, absorb more energy, and do it more consistently than on any GT or sports car Aston Martin has built before.
This guide covers the two upgrade paths available for the standard DBX's factory steel brakes: a true 2-piece floating rotor upgrade, and a full steel-to-carbon-ceramic conversion. Both are direct bolt-on fitments engineered specifically for this platform.
Important fitment note: This guide applies to the standard Aston Martin DBX (2020–2024, 542hp) which came from the factory with steel brakes as the base specification. The high-performance DBX707 (2022–present) is a different animal — it comes standard with larger 420mm carbon ceramic brakes and 6-piston front calipers, a completely different system from the standard DBX's 410mm steel setup. The products in this guide are engineered for the standard DBX's steel brake system and are not a fitment for the DBX707. If you drive a DBX707 and want to discuss options, contact Triton directly.
Why the Standard DBX's Factory Brakes Have Room to Improve
The standard DBX's factory steel rotors use a quasi 2-piece construction — a cast or riveted connection between the friction ring and the hub rather than genuine mechanical independence. On a 5,000 lb SUV capable of real performance driving, that distinction matters more than it would on a lighter car.
Without true floating separation, heat generated at the friction surface transfers more directly into the hub and wheel bearing, the rotor expands less predictably under sustained hard braking, and wear across repeated stops becomes less even. For occasional daily driving this is rarely noticeable. For DBX owners who drive with intent — mountain roads, track days, sustained high-speed touring — it's the difference between confident, consistent pedal feel and the onset of fade exactly when you need the brakes most.
Option 1: True 2-Piece Floating Steel Rotors
Triton's floating rotor replaces the DBX's OEM quasi 2-piece design with a genuine floating assembly — a high carbon steel friction ring mechanically separated from a billet aluminum hat, free to expand thermally without transferring stress into the hub.
Technical Specifications
Specification | Front | Rear |
Rotor diameter | 410mm | 390mm |
Rotor thickness | 38mm | 32mm |
Ring material | G3500 High Carbon Steel | G3500 High Carbon Steel |
Hat material | Billet Aluminum | Billet Aluminum |
Design | True 2-piece floating | True 2-piece floating |
OE part replaced | MY83-1125-AA | MY83-2C026-AA |
Caliper compatibility | Factory OEM calipers | Factory OEM calipers |
The billet aluminum hat construction meaningfully reduces unsprung weight versus the factory steel hub design — a benefit that compounds on a vehicle this heavy, sharpening turn-in response and reducing the load the suspension has to manage at each corner. Multiple machining patterns are available; contact Triton if you have a specific cooling vane preference.
Price: From $1,391 Turnaround time: ~35 days Warranty: 1 year / 36,000 miles against manufacturer defects
Option 2: Steel-to-Carbon Ceramic Conversion Kit
For DBX owners who want to move beyond steel entirely, Triton's conversion kit replaces the factory steel rotors and pads with a complete Gen 3 carbon ceramic setup — engineered as a direct bolt-on for the factory caliper, with no modifications required.
Triton's Gen 3 technology bonds long carbon fibers into a three-dimensional interlocking network within the silicon carbide matrix, rather than the shorter chopped fibers used in conventional Gen 2 carbon ceramic products. The result is superior structural integrity under thermal cycling and a longer effective service life — the two areas where carbon ceramic discs most commonly fail under sustained hard use.
Carbon ceramic discs run dramatically lighter than the equivalent steel rotor, which matters enormously on a vehicle of the DBX's weight: reducing unsprung mass at all four corners improves both ride quality and high-speed stability, on top of essentially eliminating brake fade regardless of how hard or how long you're driving.
Price: $11,998 for a complete front and rear set including pads Turnaround time: approximately 60–65 days, consistent with Triton's other carbon ceramic conversion kits Warranty: 1 year / 36,000 miles against manufacturer defects
Brake Pads
Upgrading rotors without addressing pads is a half-measure. Triton supplies dedicated brake pads for the standard DBX (without the factory carbon ceramic package) engineered for low dust, quiet operation, and fade-resistant bite — matched to the floating rotor upgrade for proper bedding and consistent performance.
Price: $565–$665 depending on compound Handling time: 7–10 business days
Which Option Is Right for Your DBX?
Choose the floating steel rotor if: you drive your DBX enthusiastically on mountain roads or occasional spirited touring, want a meaningful improvement in thermal consistency and rotor longevity over the factory quasi 2-piece design, and want the most accessible price point at $1,391 for a complete set.
Choose the carbon ceramic conversion if: you want to eliminate fade entirely regardless of driving intensity, plan to use the DBX for track days or sustained high-speed touring, and want the largest possible reduction in unsprung weight on this heavy platform.
Fitment Guide
Model | Years | Factory Brake System | Floating Rotor | CCB Conversion |
Aston Martin DBX (standard) | 2020–2024 | 410mm steel front (base spec) | ✓ | ✓ |
Aston Martin DBX707 | 2022–present | 420mm carbon ceramic (standard) | ✗ Not a fitment | ✗ Not a fitment |
The standard DBX was discontinued after the 2024 model year, with DBX707 continuing as the sole DBX offering from 2025 onward. If you're shopping for a used DBX and aren't sure which version you have, check whether your car has the factory carbon ceramic brake package — if so, it's either a 707 or a standard DBX with the optional CCB upgrade, and Triton's steel rotor product won't apply. If your car has steel brakes from the factory, the floating rotor and conversion kit in this guide are the correct fitment.
Not sure which setup your DBX has? Contact Triton with your VIN or build sheet and we'll confirm before you order.
Frequently Asked Questions
Does this brake upgrade fit the DBX707?
No. The DBX707 uses a larger 420mm carbon ceramic brake system as standard equipment, with 6-piston front calipers — a different specification from the standard DBX's 410mm steel setup covered in this guide. Contact Triton directly if you drive a DBX707 and want to discuss your options.
Will the floating rotor upgrade affect my DBX's ABS or stability control?
No. Triton's rotors maintain OEM sizing and are fully compatible with the DBX's factory ABS and stability control systems. No recalibration or coding is required.
Do I need new brake pads with the floating rotor upgrade?
Pads are sold separately from the rotor set. If your current pads are more than 50% worn, replacing them at the same time as the rotors is recommended for proper bedding and even performance.
Is the carbon ceramic conversion reversible?
The conversion is a direct physical replacement of the rotor and pad system. Reverting to steel would require reinstalling steel rotors and steel-compatible pads — mechanically possible, but not something most owners choose to do once they've made the upgrade.
How does Triton's floating design compare to the factory quasi 2-piece rotor?
The factory design uses a fixed or riveted connection between the rotor ring and hub, meaning the two move as a single rigid unit under heat. Triton's true floating design allows the ring to expand and contract independently of the hat, reducing stress transfer into the hub and bearing, and allowing only the friction ring — not the entire assembly — to be replaced at the next service interval.
What warranty does Triton offer on DBX brake products?
1 year / 36,000 miles (whichever comes first) against manufacturer defects, covering structural integrity and manufacturing quality. This does not cover normal wear, improper installation, use on an incorrect fitment, or external damage — it is not a road hazard warranty.
The Bottom Line
The Aston Martin DBX asks more of its braking system than any previous Aston Martin model — and the standard DBX's factory steel brakes, while competent, leave real thermal performance on the table for owners who drive their SUV the way it was engineered to be driven. Whether that means a true floating steel rotor at an accessible price point or a full carbon ceramic conversion for the highest performance ceiling available, Triton has a direct-fit, engineered solution for the standard DBX platform.
Published by Triton Motorsports |
Questions? Contact us at info@tritonmotorsportsusa.com or call +1-469-553-0077
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