Brembo
Brembo 09.C315.21 Brake Disc for BMW 1 Series 324mm Vented Drilled & Slotted Coated High-Carbon 5-Hole with Bolts/Screws | 09C31521
Brembo 09.C315.21 Brake Disc for BMW 1 Series 324mm Vented Drilled & Slotted Coated High-Carbon 5-Hole with Bolts/Screws | 09C31521
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BMW 1 Series Performance Brake Rotor Upgrade by Brembo
Give your BMW 1 Series the stopping power it deserves with this Brembo high‑carbon, vented, grooved and cross‑drilled brake rotor. Finished in a durable anti‑corrosion coating and supplied with fixing hardware, it delivers sharp bite, confident pedal feel and consistent braking in daily use and fast road driving. Engineered for heat management and longevity, this is a quality upgrade or premium replacement for drivers who want precision and reliability without compromise.
Why enthusiasts choose this rotor
- High‑carbon cast for stable performance and refined pedal response
- Vented internal vanes for efficient cooling and fade resistance
- Grooved and drilled face helps clear gas, dust and water for dependable bite
- Protective coated finish keeps the disc looking tidy and helps resist rust
- Balanced and machined for smooth, vibration‑free operation
- Includes bolts and screws for a straightforward installation
Real‑world results
We fit these at MJ Modifications and run them on our own cars. Feedback from customers is consistently positive, praising the crisp initial bite, repeatable performance in spirited driving and smart appearance behind the wheels.
Perfect for
- BMW 1 Series owners wanting an uprated braking solution
- Drivers seeking a premium replacement rotor with improved feel
- Those who value cleaner hubs and hats thanks to a quality coated finish
Part reference
Part number: 09.C315.21 | Alternate reference: 09C31521
Technical details
| Diameter | 324 mm |
| Thickness | 22 mm |
| Design | Internally vented, slotted and perforated |
| Bolt pattern | 5‑stud |
| Material | High‑carbon |
| Finish | Anti‑corrosion coated |
| Included | Fixing bolts and screws |
Fitting and support
Prefer professional installation We offer fitting at MJ Modifications, Warwickshire. Email info@mjmodifications.co.uk for a quote and scheduling.
Compatibility and checks
Intended for BMW 1 Series applications covered by the part number above. We run a compatibility check before dispatch. Add your UK registration number or the last 7 digits of your VIN at checkout, or contact us for confirmation.
Helpful tips
- Replace brake discs in axle pairs and use new pads for best bedding and performance
- Follow correct torque specs and perform a gentle bed‑in procedure
Search terms customers use
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