BC Racing RM Series - BMW 1 Series F40 FWD (2019+)
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PLEASE NOTE THE IMAGE IS FOR ILLUSTRATION PURPOSES ONLY IF YOU REQUIRE SPECIFIC NEEDS SUCH AS TOP MOUNTS THEN PLEASE CONTACT US TO CONFIRM BEFORE ORDERING
BC Racing RM Series Coilovers – BMW 1 Series F40 FWD
The BC Racing RM Series Coilovers for the BMW 1 Series F40 FWD are a high-performance suspension upgrade designed for drivers looking for increased chassis rigidity, sharper response and greater suspension control during demanding fast-road and track use.
The RM Series uses an inverted monotube damper design, helping increase structural rigidity while reducing the mass of the moving suspension components. Combined with adjustable damping and ride height, the RM Series is particularly well suited to F40 builds where handling performance and chassis response are a priority.
Why choose BC Racing RM Series for your BMW F40?
The BMW F40 1 Series uses a front-wheel-drive-based platform, which benefits from a well-controlled suspension setup when driven hard.
The RM Series takes the BC Racing platform further with its inverted damper design, helping improve suspension rigidity and response during rapid direction changes and high-load cornering.
With 30-way damping adjustment and adjustable ride height, the setup can be tailored around your tyres, alignment, driving style and intended use.
For F40 owners who regularly enjoy spirited driving or track days, the RM Series offers a more performance-focused suspension package than the BR or DS Series.
Key Features
- BC Racing RM Series high-performance coilover suspension
- BMW 1 Series F40 FWD application
- Inverted monotube damper design
- 30-way damping adjustment
- Adjustable ride height
- Ride-height adjustment independent of spring preload
- Increased structural rigidity
- Reduced unsprung mass
- Rebuildable damper design
- Application-specific spring rates
- Custom spring-rate options available
- Designed for demanding fast-road and track use
BMW F40 Suspension Upgrade
The BC Racing RM Series gives F40 owners a highly adjustable platform for developing the car's handling performance.
The inverted damper design helps increase rigidity and reduce unsprung mass, which can improve suspension response during rapid changes in direction and aggressive cornering.
The RM Series can also work alongside other chassis upgrades such as performance tyres, uprated anti-roll bars, polyurethane bushes, strut braces and performance alignment settings.
For a fast-road F40, the RM Series provides a more focused setup with strong chassis control. For cars that regularly see track use, the inverted design and adjustable damping offer greater scope to develop the suspension around circuit conditions and tyre choice.
Inverted Damper Technology
The defining feature of the RM Series is its inverted monotube damper design.
Unlike a conventional damper, the inverted layout places more of the damper assembly towards the chassis. This can reduce unsprung mass while increasing rigidity within the suspension assembly.
The design is particularly useful during demanding driving, where higher lateral loads and repeated suspension movement place greater stress on the dampers.
For track-focused F40 builds, this makes the RM Series a strong option for drivers looking for a more specialised suspension setup.
30-Way Damping Adjustment
The RM Series provides 30 levels of damping adjustment, allowing you to tailor the suspension response to suit different driving conditions.
Softer settings can provide greater compliance for road use, while firmer settings can increase chassis control for spirited driving and track use.
This allows the suspension to be developed around changes to tyres, alignment and other chassis modifications.
RM Series Maintenance
The increased performance of the RM Series does come with additional maintenance compared with more conventional coilover designs.
The inverted damper assembly should be kept clean and inspected regularly, particularly on cars exposed to road grime, water and frequent track use.
Relevant moving and mating surfaces should also be maintained in line with BC Racing's recommendations to help reduce unwanted noise or wear.
If your F40 is primarily used on the road and low maintenance is a priority, the BR or DS Series may be a more suitable option.
Choosing Your Spring Rate
The RM Series is available with application-specific spring rates, with alternative and custom spring-rate options available depending on the selected specification.
The ideal setup will depend on your exact F40 model, tyre choice, vehicle weight, suspension modifications and intended use.
For track-focused builds, spring rates should be considered alongside alignment, tyre choice and the rest of the suspension setup rather than selected in isolation.
If you're unsure which specification is best suited to your F40, contact us before ordering and we can help you choose the right setup.
F40 FWD Compatibility
This kit is designed for applicable front-wheel-drive BMW 1 Series F40 models.
The F40 range includes different engine, drivetrain and suspension configurations, so it is important to confirm your exact vehicle specification before ordering.
If you have an xDrive model, make sure you select the correct BC Racing application rather than the FWD kit.
What's Included?
The BC Racing RM Series is supplied as a complete coilover suspension kit for the applicable BMW F40 FWD application, including the vehicle-specific dampers, springs and relevant adjustable components.
Exact top-mount and spring-rate specifications can vary depending on the selected configuration, so please check your chosen kit before ordering.
Explore More BMW F40 Parts
Looking to improve your BMW further? Explore our range of BMW F40 1 Series parts and upgrades, including suspension, handling, performance and styling products.
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