BC Racing N-11-BR-RS BR Series RS Coilover Kit
BC Racing BR Series RS coilover kit for Mazda MX-5 Mk3 / Mk3.5 / Mk3.75 NC 1.8 and 2.0 2005–2015 applications listed in the compatibility table.
The BR Series is BC Racing's versatile adjustable coilover range, designed to provide increased suspension setup flexibility for road, fast-road and track-day use while remaining suitable for cars that continue to see regular road mileage.
This complete four-corner suspension kit uses monotube dampers with 30-position combined compression and rebound adjustment. Ride height can be adjusted independently from spring preload, allowing the vehicle height to be changed without relying solely on spring-platform adjustment.
The RS configuration uses rubber-isolated upper mounts at both the front and rear, making this a more road-orientated mounting arrangement than the rigid pillowball alternatives available within parts of the BC Racing range. This standard N-11-BR-RS configuration uses 6 kg/mm front and 4 kg/mm rear springs.
- Product type: Complete coilover suspension kit
- Series: BR Series
- Configuration: RS
- Primary use: Road, fast road and track day
- Location / system: Front and rear suspension
- Brand: BC Racing
- Product reference / part number: N-11-BR-RS
- Vehicle application: Mazda MX-5 / Miata NC / NCEC 2005–2015
- Engine applications: 1.8 and 2.0 petrol
- Damper design: Monotube
- Front spring rate: 6 kg/mm
- Rear spring rate: 4 kg/mm
- Damping adjustment: 30-position combined compression / rebound adjustment
- Ride height adjustment: Adjustable independently from spring preload
- Front top mount: Rubber-isolated RS top mount
- Rear top mount: Rubber-isolated RS top mount
- Quantity supplied: Complete four-corner coilover suspension kit
Fitment advice: Designed for Mazda MX-5 Mk3, Mk3.5 and Mk3.75 NC / NCEC 1.8 and 2.0 applications from 2005–2015, including the relevant manual and automatic transmission variants listed in the compatibility table. For imported, modified or previously repaired cars, matching the vehicle generation, chassis code, suspension layout and kit reference is recommended before ordering.
Other items to consider: When fitting or setting up this product, you may also want to consider purchasing replacement suspension fasteners, anti-roll bar links, suspension bushes and any worn suspension arms or ball joints. A full four-wheel geometry alignment should be carried out once the final ride height has been established.
Useful tools / consumables: Suitable vehicle lifting equipment and axle stands, socket and spanner set, torque wrench, penetrating fluid, anti-seize compound and the appropriate BC Racing coilover adjustment tools. Professional wheel-alignment equipment will be required for final geometry setup.
Difficulty guide: DIY Difficulty: Advanced. Installation requires removal and replacement of the complete front and rear suspension assemblies, followed by ride-height setup and a full wheel alignment. Professional installation is recommended where suitable workshop equipment or suspension experience is not available.
Why BC Racing? BC Racing BR Series suspension provides a practical balance between road usability and suspension adjustability for fast-road and track-day use. Monotube dampers, independently adjustable ride height and 30-position combined damping adjustment give owners considerably greater control over suspension setup than a conventional fixed spring and damper package.
What’s in the box: Complete four-corner BC Racing BR Series RS coilover suspension kit with front and rear dampers, 6 kg/mm front springs, 4 kg/mm rear springs, RS rubber-isolated upper mounts, adjustment spanners and associated components supplied with the N-11-BR-RS kit.
Installation / setup notes: Ride height, spring preload and damping should be set carefully during installation. Once the required ride height has been established, all suspension mounting hardware should be tightened to the appropriate specification and a full four-wheel geometry alignment carried out before final suspension setup.
| Make | Model | Sub Variant | Chassis / Code | Years | Power (PS) | Engine Codes | Fuel | Transmission | Notes |
|---|---|---|---|---|---|---|---|---|---|
| Mazda | MX-5 | Mk3 NC1 – 1.8 / 2.0 / 2.0 Sport | NC / NCEC | 2005–2009 | 126–160 | L8-VE / LF-VE | Petrol | Manual / Automatic | BC Racing BR Series RS; N-11-BR-RS; 6 kg/mm front / 4 kg/mm rear; rubber-isolated front and rear upper mounts; 30-position combined damping adjustment. |
| Mazda | MX-5 | Mk3.5 NC2 – 1.8 / 2.0 / 2.0 Sport | NC / NCEC | 2009–2012 | 126–160 | L8-VE / LF-VE | Petrol | Manual / Automatic | BC Racing BR Series RS; N-11-BR-RS; 6 kg/mm front / 4 kg/mm rear; monotube coilover suspension; 30-position combined damping adjustment. |
| Mazda | MX-5 | Mk3.75 NC3 – 1.8 / 2.0 / 2.0 Sport | NC / NCEC | 2012–2015 | 126–160 | L8-VE / LF-VE | Petrol | Manual / Automatic | BC Racing BR Series RS; N-11-BR-RS; 6 kg/mm front / 4 kg/mm rear; suitable for the confirmed NC / NCEC application. |
| Reference Type | Reference |
|---|---|
| BC Racing Product Reference | N-11-BR-RS |
| BC Racing Series | BR Series – RS |
| Vehicle Application | Mazda MX-5 / Miata NC / NCEC 2005–2015 |