MMX Lowering springs | BMW F2x | M135i | M235i | M140i | M240i
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MMX Lowering Springs – BMW F20/F21 M135i & M140i, F22/F23 M235i & M240i
Improve the stance and handling of your BMW F2X M-Lite with the MMX Performance Lowering Spring Kit.
Designed specifically for the BMW M135i, M140i, M235i and M240i, the MMX spring kit lowers the car by approximately 20mm at the front and 30mm at the rear, helping reduce the factory rake and create a more level, purposeful stance.
Carefully selected progressive spring rates are designed to sharpen chassis response and reduce body roll while retaining the ride quality required for everyday road use.
For owners who want a simple, effective suspension upgrade without replacing the factory dampers, the MMX Lowering Spring Kit provides a strong balance of handling, stance and usability.
Why Choose MMX Lowering Springs?
The BMW F2X M-Lite platform offers an excellent blend of performance and everyday usability, but the factory ride height and spring setup leave room for improvement.
MMX developed this spring kit specifically around the M135i, M140i, M235i and M240i rather than using a generic lowering spring specification.
The result is designed to provide:
- Lower ride height
- Reduced body roll
- Sharper turn-in
- More direct chassis response
- Improved visual stance
- Reduced wheel arch gap
- Retention of the factory dampers
- Retention of adaptive damping where fitted
- Road-friendly ride quality
Key Features
- MMX Performance lowering spring kit
- Designed specifically for BMW F2X M-Lite models
- Approx. 20mm front lowering
- Approx. 30mm rear lowering
- Progressive spring rates
- Bespoke spring rates for the F2X platform
- Compatible with static dampers
- Compatible with adaptive/dynamic dampers
- Reduces body roll
- Sharpens turn-in
- Improves stance
- Reduces factory rake
- Retains road comfort
- Finished in MMX metallic grey
- Direct replacement for the factory springs
- MMX part number MMR08-0501
20mm Front / 30mm Rear Lowering
MMX specifies an approximate ride-height reduction of:
- Front: 20mm
- Rear: 30mm
The greater reduction at the rear helps remove the factory rake and gives the car a more level and balanced appearance.
The result is a noticeably more purposeful stance without taking the car excessively low for normal road use.
Improved Stance
The visual improvement is one of the most noticeable benefits of fitting lowering springs.
The MMX kit reduces the factory wheel arch gap and allows the wheels to sit more naturally within the body.
On the F2X platform, the 20mm front and 30mm rear drop is designed to create a more balanced front-to-rear stance rather than simply lowering both axles by the same amount.
Lower Centre of Gravity
Reducing ride height lowers the vehicle’s centre of gravity.
This can help reduce the amount of body movement generated during:
- Cornering
- Braking
- Acceleration
- Rapid direction changes
A lower centre of gravity helps the chassis feel more settled and responsive during enthusiastic driving.
Reduced Body Roll
MMX specifically highlights reduced body roll as one of the dynamic benefits of the spring kit.
The revised spring rates provide greater support as cornering load increases, helping the vehicle remain flatter through bends.
This can improve:
- Chassis confidence
- Steering response
- Mid-corner stability
- Driver feedback
Sharper Turn-In
The lower ride height and progressive spring rates are designed to make the F2X chassis feel lighter and more direct.
MMX specifically describes the result as significantly sharper on turn-in.
This makes the kit particularly appealing to owners who want to improve the car’s road handling without moving to a much more aggressive suspension setup.
Progressive Spring Rates
The MMX springs use carefully selected progressive spring rates.
A progressive spring does not operate at one fixed rate throughout its full travel.
At lower loads, the spring can remain more compliant, helping preserve everyday ride quality.
As the suspension is loaded harder through cornering and braking, the effective spring rate increases to provide greater chassis control.
This approach helps balance:
- Road comfort
- Body control
- Turn-in response
- Handling precision
Designed Around the Factory Dampers
MMX developed the spring rates specifically to work with the factory damper characteristics.
This is important because excessively stiff or excessively short lowering springs can leave the dampers poorly matched to the spring rate.
MMX states that going significantly lower or stiffer can cause the vehicle to bounce and crash as the dampers and available suspension travel become mismatched.
The MMX kit is therefore designed to provide a meaningful reduction in ride height while staying within a usable range for the original dampers.
Compatible with Static Dampers
Cars fitted with conventional static dampers are fully supported.
The original dampers remain in place while the factory springs are replaced with the MMX components.
This makes the upgrade relatively simple and avoids the additional cost of a complete suspension replacement.
Compatible with Adaptive / Dynamic Dampers
MMX also lists the springs as fully compatible with cars equipped with dynamic or adaptive dampers.
This allows the factory electronic damping system to remain in use while the mechanical ride height is reduced.
For road-driven M135i, M140i, M235i and M240i models, this is one of the main advantages of choosing lowering springs rather than replacing the dampers with non-electronic coilovers.
Maintains Road Usability
MMX positions the kit as offering improved dynamics and appearance without sacrificing ride quality.
That makes it especially suitable for:
- Daily-driven cars
- Weekend road cars
- Fast-road builds
- Mild track-day cars
For owners who want a noticeable handling improvement while keeping the car comfortable enough for regular road use, the spring kit offers a sensible compromise.
MMX Lowering Springs vs Coilovers
A full coilover system replaces the springs and dampers and can offer much greater adjustment.
However, not every F2X build needs that level of suspension control.
MMX lowering springs are particularly well suited to owners who want:
- Improved stance
- Sharper road handling
- Factory damper retention
- Adaptive damping retention
- Lower purchase cost
- Less setup complexity
For predominantly road-driven cars, they provide a straightforward suspension upgrade without moving to a complete coilover system.
Ideal for Fast-Road Builds
The MMX spring kit works particularly well alongside upgrades such as:
- Performance tyres
- Lightweight wheels
- Wheel spacers
- Adjustable droplinks
- Uprated anti-roll bars
- Chassis braces
- Performance alignment
- Uprated control-arm bushings
Combining suspension upgrades with a quality four-wheel alignment can help make the most of the F2X chassis.
Wheel & Tyre Clearance
Lowering reduces the available space between the wheel, tyre and surrounding bodywork.
Final clearance depends on:
- Wheel width
- Wheel offset
- Tyre width
- Tyre profile
- Spacer thickness
- Alignment settings
Cars running aggressive wheel fitments should have tyre clearance checked after installation.
Professional Installation Recommended
Professional installation is recommended.
After fitting lowering springs, the vehicle should receive a four-wheel alignment.
Lowering can alter:
- Front toe
- Rear toe
- Camber
- Steering geometry
Correct alignment helps maintain predictable handling and minimise irregular tyre wear.
BMW F20 / F21 M135i
The MMX Lowering Spring Kit is compatible with the BMW F20 and F21 M135i.
Powered by the N55 engine, the M135i benefits from the same 20mm front and 30mm rear lowering specification.
The revised stance and spring rates help sharpen the chassis while retaining the original dampers.
BMW F20 / F21 M140i
The B58-powered BMW F20 and F21 M140i are also supported.
For fast-road M140i builds, the MMX springs provide a simple way to reduce body movement and improve stance without replacing the complete factory suspension system.
BMW F22 / F23 M235i
The MMX springs are suitable for the BMW F22 M235i Coupe and F23 M235i Convertible.
The revised ride height reduces wheel arch gap while helping the chassis feel more direct through corners.
BMW F22 / F23 M240i
The BMW F22 M240i Coupe and F23 M240i Convertible are also included within the MMX application.
For B58-powered M240i builds, the spring kit provides a straightforward road-focused suspension upgrade while retaining the original damper hardware.
Compatibility
Designed for BMW F2X M-Lite applications including:
- BMW F20 M135i
- BMW F21 M135i
- BMW F20 M140i
- BMW F21 M140i
- BMW F22 M235i
- BMW F23 M235i Convertible
- BMW F22 M240i
- BMW F23 M240i Convertible
MMX lists the application for F20, F21, F22 and F23 chassis from 2011–2019 with N55 and B58 engines.
Please confirm exact vehicle specification before ordering.
What's Included?
The MMX Lowering Spring Kit includes:
- Front progressive lowering springs
- Rear progressive lowering springs
Supplied as a complete vehicle set.
The original BMW dampers are retained.
Explore More BMW F2X Parts
Looking to improve your BMW M-Lite further? Explore our range of suspension and handling upgrades.
BMW F20 / F21 Parts – Browse handling and chassis upgrades for the BMW F2X 1 Series.
BMW F22 / F23 Parts – Browse handling and chassis upgrades for the BMW F2X 2 Series.
MMX Performance – Explore MMX suspension, braking, drivetrain and performance upgrades.
Lowering Springs – Browse fixed lowering spring kits for performance BMW models.