ST Sport suspension - BMW 1 Series E81 / E87

ST Sport Suspension – BMW 1 Series E81 / E87

Upgrade your BMW 1 Series with an ST Sport Suspension Kit, combining matched lowering springs and sport dampers for a more controlled chassis, sportier stance and improved road handling.

Unlike a coilover system, the ST Sport Suspension uses a fixed ride height and pre-matched spring and damper combination. This makes it a straightforward option for drivers who want a complete suspension upgrade without needing ride-height or damping adjustment.

ST part number:

23220053

Approximate Lowering

This application provides approximately:

• Front: 30mm
• Rear: 30mm

The drop is designed to lower the vehicle's centre of gravity while retaining a practical ride height for everyday road use.

Actual lowering can vary depending on factory suspension specification, vehicle equipment and existing ride height.

Matched Springs & Sport Dampers

ST Sport Suspension kits combine application-specific lowering springs with matched sport dampers.

This provides a complete suspension package designed to work together rather than pairing lowering springs with ageing standard dampers.

Potential benefits include:

• Reduced body roll
• Improved steering response
• More controlled weight transfer
• Sportier vehicle stance
• Improved chassis stability
• More direct road feel

ST Suspension is part of KW Automotive, and ST states that its suspension products are manufactured using KW engineering and production expertise.

Fixed Ride Height & Damping

This is not a height-adjustable coilover system.

The setup uses:

• Fixed approximately 30mm lowering
• Fixed damper calibration
• Matched front and rear sport springs
• Matched sport dampers

This makes it particularly suitable for drivers who want a simple, pre-engineered suspension upgrade without needing to configure ride height or damping settings.

Compatibility – Please Check Carefully

ST part number 23220053 is listed for selected BMW 1 Series E81 and E87 petrol models.

Compatible applications include:

BMW E81:

• 116i
• 118i
• 120i

BMW E87:

• 116i
• 118i
• 120i

Published engine outputs for these applications range approximately from 85kW to 125kW depending on engine and model year.

Important E82 Compatibility Note

Although some broader retailer category titles group E81, E82, E87 and E88 together, the detailed fitment data I found for ST part number 23220053 specifically identifies E81 and E87 116i, 118i and 120i applications.

I therefore recommend listing this product as:

ST Sport Suspension – BMW 1 Series E81 / E87

rather than stating E82 compatibility without further confirmation.

Maximum Axle Loads

Maximum permissible axle loads are:

• Front axle: 875kg
• Rear axle: 1060kg

Your vehicle must not exceed these limits.

We recommend checking the axle-load figures on the vehicle identification plate before ordering.

Model Years

Published application data covers approximately:

• BMW E81: 2006/2007–2012 depending on engine
• BMW E87: 2003/2004–2011 depending on engine

Exact production dates differ between the 116i, 118i and 120i variants, so vehicle-specific compatibility should be confirmed before purchase.

Designed for Fast-Road Use

The ST Sport Suspension is particularly well suited to:

• Daily-driven BMWs
• Fast-road builds
• Drivers wanting a moderate 30mm drop
• Cars with tired factory dampers
• Owners wanting a complete spring and damper upgrade
• Drivers who do not need coilover adjustability

It provides a useful middle ground between fitting lowering springs alone and moving to a fully adjustable coilover system.

ST Sport Suspension vs ST X Coilovers

ST Sport Suspension:

• Fixed ride height
• Fixed damping
• Matched lowering springs and sport dampers
• Straightforward road-focused setup

ST X Coilovers:

• Adjustable ride height
• Fixed damping
• Greater control over vehicle stance

The Sport Suspension kit is therefore ideal if you want a predetermined lowering level without needing the additional adjustment of a coilover system.

Product Image & Configuration Note

Product images are generic and are intended for illustration purposes only.

The exact supplied components can vary depending on application, including:

• Spring design
• Damper shape
• Mounting hardware
• Front and rear suspension configuration

If you need confirmation of any specific component before ordering, please contact The Rosso Corsa Collective.

Professional Installation Recommended

Professional installation is recommended.

Following installation, the vehicle should receive a full wheel alignment to ensure correct geometry, handling and tyre wear.

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