BC Racing ZX Series - BMW 1 SERIES E81 (04-13) (EXCL 1M COUPE)
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BC Racing ZX Series Coilovers – BMW 1 Series E81 2004-2013
Upgrade the suspension of your BMW 1 Series E81 with BC Racing ZX Series Coilovers, developed for drivers wanting a more performance-focused setup for fast-road, trackday and motorsport use.
The ZX Series is aimed at drivers who want greater chassis control and a firmer, more responsive setup than a typical road-biased coilover package.
For this application, available spring-rate configurations include:
- 5.5 / 8kg/mm
- 8 / 10kg/mm
Available Spring Rates
Two spring-rate configurations are available for this application.
5.5 / 8kg/mm
- Front: 5.5kg/mm
- Rear: 8kg/mm
This is the more road-friendly setup, offering a stronger balance between performance and everyday usability.
It is well suited to:
- Fast-road driving
- Mixed road and track use
- Daily-driven performance cars
- Drivers wanting improved control without excessive stiffness
8 / 10kg/mm
- Front: 8kg/mm
- Rear: 10kg/mm
This is the firmer option and is better suited to more focused performance use.
It is well suited to:
- Regular track days
- Higher-grip tyres
- Clubsport builds
- More aggressive chassis setups
- Drivers prioritising body control and response
Performance-Focused Suspension
The ZX Series is designed for applications where improved response and chassis control are a priority.
Potential benefits include:
- Improved body control
- Sharper steering response
- Better cornering stability
- Reduced pitch and roll
- Greater confidence during weight transfer
- More consistent handling under demanding use
Adjustable Ride Height
BC Racing ZX Series Coilovers allow ride height to be adjusted to suit your preferred stance and intended use.
This gives greater control over:
- Vehicle height
- Wheel fitment
- Arch clearance
- Centre of gravity
- Overall chassis setup
Ride height should always be set with sufficient suspension travel and clearance for safe road or track use.
Adjustable Damping
The ZX Series provides damping adjustment, allowing the suspension response to be tailored around:
- Road conditions
- Tyre choice
- Driver preference
- Vehicle setup
- Track conditions
This allows the car to be tuned more precisely than with a fixed spring and damper setup.
Choosing the Right Spring Rate
Choose 5.5/8kg.mm if you want:
- Better road compliance
- Strong fast-road performance
- Occasional track capability
- A more versatile overall setup
Choose 8/10kg.mm if you want:
- Firmer chassis control
- More track-focused behaviour
- Better support for higher-grip tyres
- A more aggressive suspension setup
If you're unsure which spring rate best suits your car, contact us before ordering and we can help select the most appropriate configuration.
Vehicle Fitment
Designed for:
- BMW 1 Series E81
- Model years 2004-2013
Excludes:
- BMW 1M Coupe
Exact fitment can vary by engine, chassis and suspension specification, so compatibility should always be confirmed before ordering.
Product Image & Configuration Note
Product images are generic and are intended for illustration purposes only.
The exact kit supplied can vary depending on vehicle application and selected configuration, including:
- Top mount design
- Camber adjustment
- Spring rates
- Rear mount configuration
- Additional hardware
If you have specific requirements such as top mounts, spring rates or a particular road or track setup, please contact The Rosso Corsa Collective before ordering so the correct specification can be confirmed.
Professional Installation Recommended
Professional installation is recommended.
After fitting coilovers, the vehicle should receive a full wheel alignment and geometry setup to ensure correct handling, tyre wear and suspension performance.
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