| Rotor Size (Diameter x Thickness) | Minimum Wheel Size | Technical Fitment Notes |
|---|---|---|
| 280mm - 300mm × 20/28mm | 15-inch | The smallest workable upgrade size, and only with compact low-profile callipers. Requires at least 340mm of clear inner wheel barrel. Steel systems only - carbon ceramic is not produced in this diameter range. |
| 310mm × 22mm | 16-inch | Fits most 16-inch wheels. Installation on 15-inch wheels is possible only with specific low-profile callipers and is not generally recommended. |
| 330mm × 28mm | 17-inch | Standard entry-level size for performance brake upgrades. Fits comfortably within most 17-inch alloy wheels. |
| 345mm - 356mm × 32mm | 18-inch | Common mid-range size. Requires 18-inch wheels with standard barrel clearance. |
| 380mm × 32/34mm | 19-inch | The industry standard for Carbon Ceramic (CCB) and heavy-duty steel systems. Fits most 19-inch wheels; verify spoke clearance for wider callipers. |
| 390mm × 36mm | 19-inch (Tight Fit) | Fits 19-inch wheels with high-clearance barrels (flat inner bed). 20-inch wheels are recommended to ensure adequate air gap for cooling. |
| 400mm - 405mm × 36/38mm | 20-inch | Requires 20-inch wheels. Ensure the wheel barrel does not taper significantly near the mounting face. |
| 410mm - 420mm × 38/40mm | 21-inch | Standard fitment for 21-inch wheels. Can fit select 20-inch motorsport wheels with specialised flat barrel profiles (template verification required). |
| 440mm × 40/42mm | 21-inch (Minimum) | Extreme fitment. 21-inch is the absolute minimum requirement. 22-inch wheels are strongly advised for safe operating clearance and heat dissipation. |
Big Brake Kit for BYD Seal 06 GT (2024+) Iron Rotor Upgrade
Price Starts From
Choose your wheel size
US delivery — duty-paid shipping available
Tariffs & taxes prepaid with shipping. No sales tax.
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1
7–10 days
Assembled and packed — parts are in stock, your kit is built to spec for your car.
- Manufacturer WarrantyMinimum 6-month coverage on every kit
- Aftersales Service Available after every purchase
- In-House Experts We spec every setup case by case
Inside the Factory
How a Two-Piece Rotor Is Made
The cast iron friction ring and the aluminum hat — both from raw stock to finished part.
Two-Piece Rotor Ring Production
High-carbon cast iron friction ring — raw casting, machined faces, slot cutting, finished part.
CNC-Machined Rotor Hat
6061-T6 aluminum hat cut on a CNC lathe and mill — turning, drilling, finished mounting face.
Caliper Options
More Calipers We Can Fit
More than 100 caliper models in stock and ready to ship.
Pad Options
Built With the Pads You Need
We can fit your big brake kit with pads from different manufacturers — matched to how you drive, from street to track.
Real Customer Installs
Customer Gallery
Recent customer installs, close-up hardware details, and workshop shots.
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Big Brake Kit for BYD Seal 06 GT (2024+) | Iron Rotor Upgrade
Rotor & Wheel Fitment Guide
Minimum wheel diameter guidance by rotor size. Always validate final fitment using a physical template and measured clearances.
Essential Clearance Requirements
To ensure safety and prevent damage to components, please observe the following industry-standard tolerances when measuring your wheels:
- Radial Clearance (Barrel): A minimum gap of 3mm is required between the top of the calliper and the inner wheel barrel to account for heat expansion and wheel deflection under load.
- Axial Clearance (Spokes): Ensure a minimum of 3mm clearance between the face of the calliper and the rear of the wheel spokes.
- Balance Weights: Ensure wheel balancing weights are positioned so they do not foul the brake calliper. We recommend placing weights outboard of the calliper zone for tighter fitments.
Important Fitment Disclaimer
The wheel sizes listed above represent minimum technical requirements based on standard barrel profiles. Due to significant variation in alloy wheel designs, particularly spoke curvature (X-factor) and inner barrel contours, meeting nominal diameter alone does not guarantee compatibility.
We strongly recommend verifying clearance instrumentally using printable fitment templates rather than relying only on visual estimates or stated wheel specifications. Please ensure at least 3mm clearance in all directions to account for thermal expansion and dynamic wheel deflection.