Hardrace Adjustable Rear Upper Arms – BMW E9x (E90 / E91 / E92 / E93) – Rose Joints

The Hardrace Adjustable Rear Upper Arms for BMW E9x models are a precision-engineered upgrade designed to restore, refine, and enhance rear suspension geometry on both road and track-driven vehicles. Whether you’re correcting alignment after lowering or chasing sharper handling characteristics, these arms deliver the adjustability and durability demanded by performance-focused BMW owners.

This Adjustable Rear Upper Arm kit is fitted with Rose Joints.  We also offer the Hardrace Adjustable Rear Upper Arms fitted with uprated rubber bushes.

Manufactured from high-strength materials and finished to Hardrace’s exacting standards, these rear upper arms are built to withstand the stresses of spirited driving while maintaining consistent alignment under load. Unlike factory arms, which offer no adjustment, Hardrace’s adjustable design allows accurate correction of rear camber, helping to eliminate uneven tyre wear and maximise the contact patch for improved grip and stability.

The inclusion of heavy-duty spherical bearings (or hardened bushings, depending on configuration) ensures precise suspension response with minimal deflection. This translates into a more planted rear end, improved cornering confidence, and greater predictability at the limit. On fast road cars, this means better tyre life and stability; on track or drift builds, it allows fine-tuning of rear geometry to suit driving style and setup requirements.

Hardrace Adjustable Rear Upper Arms are designed as a direct replacement for the OEM components, ensuring straightforward installation with no permanent modification required. Once fitted, adjustment can be made to dial in alignment accurately, making them an ideal companion to coilovers or other suspension upgrades commonly fitted to E9x chassis cars.

Suitable for BMW E90, E91, E92, and E93 models, these arms are a popular choice among enthusiasts, track day drivers, and alignment specialists alike. With Hardrace’s proven reputation in motorsport and performance suspension components, you can be confident you’re investing in a product that delivers both reliability and results.

Key Benefits:

• Adjustable rear camber correction

• Improved handling and rear-end stability

• Reduced uneven tyre wear on lowered vehicles

• High-strength construction for road and track use

• Direct bolt-on fit for BMW E9x platforms

Upgrade your rear suspension with Hardrace Adjustable Rear Upper Arms and unlock the full potential of your BMW E9x chassis.