Suspension Secrets Adjustable Rear Upper Camber Arms - BMW E90/E92 M3

Suspension Secrets Adjustable Rear Upper Camber Arms – BMW E90 / E92 M3

Increase rear axle grip, stability and geometry control with Suspension Secrets Adjustable Rear Upper Camber Arms for the BMW E90 and E92 M3.

The standard E9x M3 uses eccentric bolts to provide rear camber adjustment, but the available range can be limiting once the car is set up for more serious track use.

Suspension Secrets Adjustable Rear Upper Camber Arms provide a much wider range of negative rear camber adjustment, allowing the rear geometry to be configured more aggressively around ride height, tyre choice and the way the car is used.

This makes them a particularly useful upgrade for fast-road, clubsport and track-focused E9x M3 builds.

Why Upgrade the Rear Camber Arms?

Rear camber has a major influence on rear tyre contact and chassis balance during hard cornering.

The additional adjustment available through these arms allows the rear axle to be set up with far more precision than the standard eccentric bolts can provide.

Potential benefits include:

• Wider rear camber adjustment range
• Increased negative camber potential
• Improved cornering grip
• Greater rear axle stability
• Better mid-corner traction
• Improved corner-exit traction
• Greater chassis balance
• Reduced rear tyre wear when correctly set up
• Better compatibility with semi-slick and slick tyres

Key Features

• Designed for BMW E90 / E92 M3
• Significantly wider camber adjustment range than stock
• Allows more aggressive rear geometry
• Improves rear cornering grip
• Improves chassis stability
• Supports track-focused alignment settings
• Helps maximise tyre contact under load
• Suitable for fast-road and track builds
• Billet aircraft-grade 6082 T6 aluminium construction
• Corrosion-resistant 316 stainless steel components
• Motorsport-spec Fluro bearings
• Designed and manufactured in the UK

The Limitation of the Factory Adjustment

The standard rear suspension uses eccentric camber adjustment bolts.

These provide some factory alignment flexibility, but the range is relatively limited.

For standard road use this may be sufficient, but once the car is:

• Lowered
• Running track geometry
• Using semi-slick tyres
• Driven regularly on circuit

the available adjustment can become restrictive.

Increased Rear Camber Adjustment

The Suspension Secrets rear upper camber arms allow a greater range of negative camber to be applied.

This gives a geometry specialist more freedom when configuring the rear axle.

The final setting can be tailored around:

• Road use
• Track use
• Ride height
• Tyre specification
• Driving style
• Desired chassis balance

Increased Cornering Grip

When the car is heavily loaded through a corner, rear camber helps determine how effectively the tyre maintains contact with the road.

Correct negative camber can help the tyre work more evenly through the corner.

Potential benefits include:

• Increased rear-end grip
• Greater confidence under load
• More predictable handling
• Improved mid-corner stability

Improved Mid-Corner Traction

As lateral load builds, the rear tyres need to maintain a consistent contact patch.

With the correct camber setting, the rear axle can produce more consistent grip through sustained corners.

This helps the car feel more settled and predictable.

Improved Corner-Exit Traction

Rear geometry also influences how effectively the car puts power down when exiting a corner.

Correctly configured camber can help improve tyre contact during acceleration, contributing to:

• Better traction
• More stable power delivery
• Improved corner-exit confidence
• More consistent rear axle behaviour

Improved Chassis Balance

Increasing rear camber appropriately can help balance front and rear grip levels.

This is particularly important on cars where front camber has already been increased through adjustable camber plates or other geometry upgrades.

A balanced setup allows the chassis to behave more predictably as grip limits are approached.

Reduced Rear Tyre Wear

Track use can place heavy loads through the outer edges of the rear tyres.

With the correct camber setting, tyre loading can be spread more evenly across the tread during cornering.

This can help reduce uneven wear during hard use.

Final tyre wear will always depend on:

• Camber
• Toe
• Tyre pressure
• Driving style
• Track layout
• Suspension setup

Ideal for Semi-Slick & Slick Tyres

Higher-grip tyres generate greater suspension loads and usually benefit from more aggressive geometry.

The additional camber adjustment provided by these arms is especially useful for:

• Semi-slick trackday tyres
• Slick tyres
• High-grip performance tyres

This allows the rear geometry to be configured around the increased grip available.

Motorsport-Spec Fluro Bearings

Suspension Secrets uses motorsport-spec Fluro bearings to provide precise suspension movement with minimal unwanted compliance.

Compared with a soft rubber joint, this helps maintain more consistent geometry under load.

6082 T6 Aluminium Construction

The arms are manufactured from billet aircraft-grade 6082 T6 aluminium.

This provides a strong and lightweight construction suited to demanding suspension applications.

316 Stainless Steel Components

Corrosion-resistant 316 stainless steel is used throughout the relevant hardware and adjustment components.

This helps provide long-term durability in exposed suspension environments.

Designed & Manufactured in the UK

Suspension Secrets designs and manufactures its suspension components in the UK.

The parts are developed specifically around the suspension behaviour and geometry requirements of the vehicle platform.

Works Well With Other Geometry Upgrades

These rear camber arms work particularly well alongside:

• Adjustable rear toe arms
• Adjustable rear traction arms
• Adjustable rear upper third links
• Solid rear control arm bushes
• Solid rear subframe bushes
• Adjustable camber/caster plates
• Coilovers
• Performance geometry setups

Road & Track Applications

The additional geometry range makes these arms suitable for:

• Fast-road E9x M3 builds
• Clubsport cars
• Trackday cars
• Semi-slick tyre setups
• Dedicated track builds

The final camber setting should always be selected around how the vehicle is actually used.

Professional Installation Recommended

Professional installation is strongly recommended.

Once fitted, the car should receive a complete rear geometry setup.

Geometry Setup Essential

Rear camber should never be adjusted in isolation.

After installation, the car should have:

• Rear camber set
• Rear toe checked and adjusted
• Ride height verified
• Full four-wheel alignment completed

For track-focused builds, the geometry should be tailored around tyre specification and intended circuit use.

Vehicle Fitment

BMW M3 E90 / E92

Compatible models:

• BMW E90 M3 Saloon
• BMW E92 M3 Coupe

What's Included?

Each kit includes:

• 1 pair Suspension Secrets Adjustable Rear Upper Camber Arms

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