Cullinan Series I
Reference specification- Chassis / series
- RR31 reference · confirm from VIN/build record
- Production
- 2018–2024 working coverage
- Generation
- Original Cullinan generation
Technical applicationQuotation application
OWNSILENT · Rolls-Royce Cullinan · Vehicle-specific C/SiC engineering
Rolls-Royce Cullinan Carbon-Ceramic Brake Upgrade
Compare an OEM-size carbon-ceramic replacement pathway with a larger front-and-rear performance package. Every production specification is released against the exact vehicle evidence—not the model name alone.
- Made to order
- VIN and OE brake review
- Worldwide supply
Final compatibility is confirmed using VIN, production month, OE brake details and measured wheel clearance.
Authentic OWNSILENT Cullinan product record. Final disc, bell, caliper and hardware geometry follows the approved vehicle file.
395 × 36
front OEM-size working reference · mm
398 × 28
rear OEM-size working reference · mm
440 × 40
front upgrade reference · mm
410 × 32
rear upgrade reference · mm
Vehicle coverage
Generations remain technically separate
Choose the correct generation first. The vehicle record controls which dimensions and brake architecture can move into engineering review.
Cullinan Series II
Approximate specification — VIN verification required- Chassis / series
- RR31 Series II · VIN/build record required
- Production
- 2024 launch–current
- Generation
- Series II evolution
Rotor, caliper, pad sweep, production month and wheel package must be verified before approval. VIN, production month, factory brakes, wheel clearance and rear functions are reviewed once in the engineering step below.
Cullinan Series I and Series II
Configure the brake package
Choose one engineering pathway and one supply scope. The selection is carried into a private fitment enquiry.
Selected package
OEM-size carbon-ceramic rotor package · Rotors only
Vehicle-specific C/SiC rotor assemblies, bells and specified mounting hardware.
- Front, rear or complete rotor set
- Vehicle-specific bells
- Specified mounting hardware
VIN verification required. Final geometry, wheel clearance, caliper compatibility and rear EPB are confirmed before production.
Prepare the private enquiry
Add non-sensitive vehicle details now. VIN and photographs are requested securely during review.
Your selected vehicle, pathway and supply scope will be placed into the quotation form below.
Front and rear specification
The useful dimensions in one place
Working references help select a pathway. Final geometry is released only against the approved vehicle record.
Front axle
Approximate specification — VIN verification required- OEM-size working reference
- 395 × 36 mm
- OWNSILENT upgrade reference
- 440 × 40 mm
- Caliper approach
- Verified factory caliper or optional forged 10-piston reference
- Matched pads
- Carbon-ceramic-compatible compound selected with approved system
- Minimum wheel
- Not universal · clearance template required for larger package
- Evidence boundary
- VIN, OE references, photographs and wheel measurements
Rear axle
Approximate specification — VIN verification required- OEM-size working reference
- 398 × 28 mm
- OWNSILENT upgrade reference
- 410 × 32 mm
- Caliper approach
- Verified factory arrangement or optional forged 6-piston reference
- Matched pads
- Rear compound matched to the approved front/rear system
- Rear EPB
- Integration must be confirmed from the exact vehicle arrangement
- Evidence boundary
- VIN, production month, rear photographs and OE references
Why C/SiC
Four practical reasons to upgrade
The customer benefit is easier to understand as a concise summary than as another long comparison table.
Assembly weight
Potentially much lower; compare approved assembly weights
Temperature resistance
Application target can reach approximately 1,400°C; specification dependent
Corrosion
C/SiC friction ring is highly corrosion resistant
Brake dust
Can be lower with the matched compound
VIN, brakes, wheels and rear EPB
One engineering approval process
All compatibility conditions are handled here once. The written decision controls the final components and production specification.
- 01
Vehicle record
Receive the VIN and confirm Series I or Series II, production month and regional specification.
- 02
Brake and wheel evidence
Record the current OE rotor, caliper, pad and rear-brake arrangement. Check spoke and barrel clearance using measurements and the supplied template.
- 03
System review
Verify rear electronic parking-brake integration and retained functions. Review rotor, bell, pad, caliper and hydraulic relationships as one system.
- 04
Written specification
Issue the written fitment decision, final quotation and production specification.
Product and manufacturing record
5 concise product and process records
Cullinan component records stay separate from general manufacturing references, and every caption keeps its evidence boundary.
Cullinan product evidence
Cullinan product record
The component package is associated with the Cullinan record, but this frame does not prove on-vehicle installation or wheel clearance.
Cullinan product evidence
Vehicle-specific hardware reference
Cullinan product-record view of rotor, bell, bracket and mounting components. Final vehicle fitment still follows VIN and OE brake verification.
Cullinan product evidence
Cullinan assembly detail
A close Cullinan product-record view supports component review; it is not presented as completed on-vehicle installation or wheel-clearance proof.
Manufacturing stage 01
Carbon-Fibre Material Preparation
Prepare and control carbon-fibre material before the rotor preform is formed.
Manufacturing stage 05
Precision CNC Machining
Machine the approved diameter, thickness, mounting positions, ventilation and friction surfaces.
Made to order
Production begins only after fitment approval and confirmation of the written component schedule.
Worldwide delivery
Protective export packing with air or sea freight options to the confirmed destination.
Professional installation
A qualified brake technician must complete installation, fluid work, torque, runout and clearance checks.
Rolls-Royce brake applications
Continue with the exact Rolls-Royce generation
Every application keeps its own production years, evidence status and engineering boundary. Quotation applications and development reviews are labelled separately.
Cullinan-specific FAQs
Questions to resolve before ordering
Six focused answers cover the generation, factory-caliper, wheel-clearance and rear-EPB decisions.
Is the kit compatible with Cullinan Series I?
Series I is within the working application scope, but compatibility is not approved by model year alone. VIN, production month, OE brake arrangement and wheels must be reviewed.
Is Cullinan Series II the same brake size?
It must not be assumed to be the same. Series II receives a separate VIN, OE reference, wheel and rear-EPB review before any dimension is approved.
Can the rotors work with factory calipers?
The OEM-size pathway may retain factory calipers when geometry, pad sweep, hydraulic relationship and condition pass the technical review.
Are larger wheels required?
That depends on the approved rotor and caliper envelope. The larger package requires a wheel-barrel and spoke-clearance template before production.
How is wheel clearance checked?
The review uses wheel diameter, width, offset, barrel and spoke measurements together with a package-specific clearance template.
Does the rear electronic parking brake remain functional?
The approved rear package is designed around the confirmed EPB arrangement. It is not released until retained operation and required components are recorded.
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Request Cullinan Brake Quotation
Confirm the exact Cullinan before production
Send the generation, model year, wheel details, current brake photographs, destination and preferred package. VIN and production month are confirmed privately during engineering review.
Usually replies within one business day · Handled by the OWNSILENT team
Prefer email? Reach us at sales@ownsilent.international