BMW 1 Series F70.
The coilover guide.
Shop the coiloversA tidy drop and a well-chosen wheel package can suit the F70's shape. Leave room for the road, and check the driven wheels and original suspension before choosing the hardware.
The 1 Series since 2024
F70 identifies the fourth-generation 1 Series introduced in 2024. The listed BC I-150 application is front-wheel drive. Keep the earlier F40 and the F70's xDrive models separate when choosing a reference.
Record what is on the car now: engine, original suspension, wheels and any earlier work. A trim name or an attractive parked stance cannot tell you which mounts and damper parts your build needs.
BMW announced the fourth-generation 1 Series in June 2024, with UK customer deliveries beginning that October. Production continued at Leipzig, and the five-door hatchback format stayed. The lower-looking front end, wide grille and vertical light elements distinguish the F70 from the preceding F40.
At launch, BMW offered the 120 with a 48-volt mild-hybrid system alongside the 123 xDrive and M135 xDrive. Those versions do not all have the same driven wheels or equipment. A suspension reference marked FWD must stay with its verified front-drive application.
BMW revised the chassis connections and kinematics, introduced new shock-absorber technology and offered an Adaptive M Chassis in the UK range. Establish the actual suspension fitted to your car before replacing it. The word Adaptive in a trim description is not enough to identify every part or decide whether warning-management hardware is needed.
Choose wheels and running height together for a road F70. Record the wheel width, offset, tyre size and any spacers, then leave clearance for steering and suspension movement. The car still has to carry its normal passengers and luggage and get across the roads and entrances you use.
Keep the visual changes proportional to the hatchback. A modest drop, suitable wheels and a restrained lip can give it a tidier stance without making maximum lowering the target. A photograph shows the parked body position; the installer needs to check what happens with the wheels turned and the suspension moving.
If track days are part of the plan, describe the tyres, session length and any weight changes before choosing a specification. Springs, damping, brakes and alignment work together. A listed road application is a useful starting point, but it is not a complete competition build sheet.
Start with your 1 Series F70.
Confirm the chassis, year and existing suspension before choosing your setup.
Front-wheel-drive F70
BC I-150 names the F70 FWD application from 2024 onwards. Match the exact engine and original suspension, then confirm the supplied mounts and rear hardware. An F70 chassis label does not remove those checks.
View the listed FWD kit
120 and original suspension equipment
The 120 launched with a 48-volt mild-hybrid system. Bring the exact build and suspension details rather than selecting from its appearance or M Sport badge. Have the proposed kit checked against that car's equipment and requirements.
Check my F70 specification
123 xDrive or M135 xDrive
These are all-wheel-drive applications. Do not order the FWD I-150 reference for an xDrive car. Ask for a separately verified application and complete specification before planning the purchase; the front-drive listing does not establish an AWD alternative.
Ask about my xDrive car
Changed wheels, mounts or suspension
Include earlier springs or dampers, brake conversions, spacers and any changed mountings. Check the delivered kit against that hardware. A registration result can identify the vehicle, but it cannot inspect alterations already made to it.
Discuss my modified F70What do you want
from the car?
Road miles, circuit weekends or a car built around the lap. Start with how you drive.
Keep the useful movement and choose the height around your wheels.
Read the buying advice
BC I-150 BR-RA is the named example for the listed FWD application. The current configuration is described as pillowball front and rubber rear mounts; confirm the actual supplied parts and original damper requirements. Agree the spring specification and running height before fitting, then have the alignment measured.
- Confirm F70 FWD and exact build
- Check supplied and retained mounts
- Plan usable height and alignment
Describe the tyres and planned sessions before settling on a specification.
Read the buying advice
Ask whether the proposed spring and damper package suits the actual car and intended use. Include tyres, running weight, brakes and how much road use it still has to do. Agree a specification for those demands before ordering.
- Describe tyres and session plans
- Keep the road use in the brief
- Agree brakes, springs and setup
Build the specification around the car and the event requirements.
Read the buying advice
A stripped cabin, cage, different tyres or altered mounting point changes the brief. Provide the planned weight, hardware and regulations before choosing springs and dampers. Agree adjustment access, supporting work and setup help rather than treating a road-kit listing as a finished competition package.
- Provide the proposed build and rules
- Declare weight and mounting changes
- Allow for setup and servicing
Separate springs and dampers at the rear
On a standard BMW 1 Series F70 factory-style rear, the rear spring and damper are mounted separately.
Component layout only. Mounts, dimensions and adjusters vary by kit.At the back of the F70, the spring sits on its own seats beside a separate shock absorber.
Rear height in a separate spring-seat arrangement is set at the spring. Confirm the exact replacement package's rear springs, seats, adjusters and retained mountings, then follow its fitting instructions. The front strut's adjustment method should not be assumed to describe all four corners.
Understand height and spring preload
Look beyond the parked stance
Have the installer inspect the car before committing to the full fitting plan. Bring the wheel dimensions, original suspension details and a record of earlier changes. Photographs can help explain the desired appearance, but they cannot replace a clearance and mounting inspection.
Agree what the quote covers: suspension parts, reused fittings, supporting repairs, alignment and any checks the car needs after the change. Confirm supply timing before booking and keep the final measurements and settings with the service record.
Wheel width, offset and tyre clearance
Give the installer the full wheel and tyre dimensions, including spacers. Check the inner gap to the suspension and brakes as well as the outer arch. Clearance must remain through steering and movement, with the normal load considered.
The suspension already fitted
Identify the original damper and mount specification, including any previous replacements. Do not assume the F70's Adaptive M label calls for the same electronic cancellation solution as another BMW generation. Agree the requirements from the actual hardware and exact kit.
Mounts and retained parts
Inspect bearings, bushes, spring seats and any original fittings that will be reused. A pillowball front description does not by itself prove camber adjustment is supplied. Check the delivered contents before the fitting appointment.
Height, alignment and supporting checks
Choose a useful height before final alignment. Include a front lip, access ramps and the usual passengers or luggage in that decision. Have the installer assess any sensor or headlamp checks relevant to the car after the work, then arrange a settling and clearance recheck.
The current 1 Series F70 range.
See the controls and hardware in the listed kit.
I-150 is BC Racing's F70 FWD reference from 2024 onwards. The listed BR-RA configuration describes pillowball front and rubber rear mounts. Have the exact car, spring specification, supplied hardware and original damper requirements confirmed; do not infer adjustable camber or xDrive compatibility from general series information.
View BC Racing 1 Series F70 kitsFind your 1 Series F70 coilovers.
Prices include UK VAT. Choose an application and brand, then open a kit for its current options and availability.
1 listing
Match the engine, body style and axle-load limits on the product page before ordering.
![BC Racing Coilovers - BMW 1 Series FWD (24+) [F70]](/images/09cf8cd191b679-480.webp)
BC Racing · BCR-I-150
BC Racing Coilovers - BMW 1 Series FWD (24+) [F70]
Front-wheel-drive F70
All 1 Series F70 kit links and part numbers
Before you order.
Identify your car
Identify the F70 chassis, engine, build date and driven wheels. Include the original suspension and any earlier replacements.
Match the kit
Match the exact FWD application and reference. An xDrive car needs a separately verified kit; do not select I-150 from the 1 Series name alone.
Check what’s included
Confirm supplied and retained mounts, rear spring seats and adjusters. Check the original damper requirements from the actual car's hardware.
Check your modifications
Record wheel width, offset, tyres, spacers and brake changes. Check clearance through steering and suspension movement.
Plan fitting
Agree the fitting scope, useful running height, alignment and any relevant sensor checks. Confirm timing and arrange a settling and clearance recheck.
See what the adjustments do.
Choosing coilovers for road and track
Compare the kit against your roads, tyres and setup plans before counting adjusters.
Ride height and spring preload
Understand the two adjustments before choosing a lowering range.
What spring rate tells you
Compare force and movement, read the units and choose a spring with the damper in mind.
Spring rates and top mounts
Read the front/rear figures and check which mounts come with your kit.
Questions about BMW 1 Series F70 coilovers.
Check the details before choosing your kit.
Is the F70 the same application as the F40?
F70 is the fourth-generation 1 Series introduced in 2024. The listed BC reference is I-150 for F70 FWD, while the earlier F40 has its own application. Confirm the chassis and exact part rather than transferring a kit from the previous generation.
Will BC I-150 fit an M135 xDrive or 123 xDrive?
BC I-150 specifies F70 front-wheel drive. Do not order it for an xDrive car on the strength of the shared F70 name. Ask for a separately verified AWD application and complete specification before ordering.
Does Adaptive M mean I need an electronic damper canceller?
Have the actual suspension hardware and replacement kit checked. A trim or chassis name alone is not enough to prescribe an electronic cancellation unit, and advice for another BMW generation should not be copied across. Agree the exact requirements before replacing the original dampers.
Are the F70 rear spring and damper separate?
The factory-style rear uses a spring on its own seats beside a separate damper. Confirm which seats, adjusters and mountings the replacement package supplies or retains. Do not assume a front strut's height-adjustment method describes the rear.
Are adjustable front camber plates included?
BC Racing Australia lists Camber Tops N/A for I-150-RA. Confirm the actual mounting hardware for the UK reference; a pillowball front description alone does not establish camber adjustment.
How low can I go with upgraded wheels?
The usable height depends on wheel width, offset, tyres, spacers and the car's equipment. Have the installer check clearance on both sides of the wheel through steering and suspension movement. A parked photograph or generic lowering figure cannot establish that clearance.
Can I choose the same kit for road use and track days?
Discuss the exact car, tyres, running weight and planned sessions before deciding. The listed FWD road application is not a separately verified track specification. Agree the springs, damping, brakes and setup support around the intended use.
What else should I budget for when fitting coilovers?
Allow for inspection, any worn or reused fittings, professional installation and alignment. Include any sensor or headlamp checks relevant to the modified car. Confirm the quote's scope and supply timing before booking, and arrange a settling and clearance recheck.
Let’s talk suspension.
Find your F70, then tell us the engine, build details and whether it is front-wheel drive or xDrive. Include the original suspension and any wheel, brake or suspension changes so the application can be checked.