Hardrace Suspension Guide: Control Arms, Bushes & Camber Kits Explained

16 octobre 2026

Hardrace has carved a reputation for crafting precision chassis and suspension components that cater to both road and track enthusiasts. Founded with a focus on performance and adjustability, their product line empowers drivers to dial in the perfect setup for handling, comfort, or lap times.

If you're looking to add some Hardrace parts to your car, check out the brand page here!

A Range Built for Precision

Hardrace’s catalogue spans every corner of the chassis and suspension spectrum. From front strut braces that stiffen the bulkhead to anti-roll bar links that sharpen turn-in, each component is engineered to exacting standards. Key offerings include:

Front and rear strut braces
Adjustable control arms and toe arms
Anti-roll bar end links
Performance transmission and differential mounts
Polyurethane and rubber bushes
Sway bar brackets and lowering arm kits

Each item allows for geometric tweaks to camber, caster and track width, so you can tailor your car’s personality to your own driving style.

The Art of Geometry Adjustment

Fine-tuning suspension geometry isn’t just for race cars. Small changes to camber or caster can sharpen turn-in, improve tyre wear or restore factory handling after lowering. Hardrace components feature slotted mounting points, eccentric inserts or threaded adjusters, giving you control over:

Camber angle for grip optimisation
Caster for steering feedback and high-speed stability
Toe for turn-in response and straight-line tracking

Whether you’re chasing milliseconds on circuit or seeking a planted feel on B-roads, these tweaks let you strike the ideal balance.

Why Lowering Your Car Ruins Factory Geometry (And How Hardrace Fixes It):

When you install lowering springs or coilovers, you are drastically altering your vehicle's factory suspension geometry. Dropping the ride height naturally introduces excessive negative camber. Because stock control arms are fixed and non-adjustable, your local alignment shop cannot correct this extreme angle. The result is unpredictable handling, reduced traction, and rapid inner tyre wear that destroys expensive rubber in a matter of months. Hardrace adjustable camber arms and toe arms are the ultimate alignment fix. By replacing the rigid factory components with Hardrace forged adjustable control arms, you regain full control over your suspension alignment, allowing you to dial in the exact camber and toe specs needed to save your tyres and maximize cornering grip.

Hardened Rubber vs Pillowball: Making the Right Choice

When upgrading chassis or drivetrain mounts, you’ll often choose between hardened rubber and pillowball (PTFE-lined) options. Here’s how each stacks up:

Feature	Hardened Rubber	Pillowball (PTFE-lined)
NVH (Noise, Vibration)	Excellent absorption	Transmits more noise and vibration
Durability	Good resistance to cracking under load	Superior longevity under high loads
Precision and Feedback	Some compliance under cornering forces	Near-instantaneous chassis feedback
Maintenance	Largely maintenance-free	Requires occasional lubrication
Price Point	Generally more affordable	Higher cost due to PTFE inserts

Pros and Cons

Hardened Rubber

Absorbs drivetrain buzz and road harshness
Reduces resonance in the cabin
Slightly flexes under heavy cornering

Pillowball

Minimises deflection for sharper response
Wthstands repeated high-load cycles
Transmits more road and engine noise

Choosing the right mount depends on your priorities. If you favour comfort and a quieter cabin, hardened rubber is the way to go. For track-focused builds or those craving instant feedback, pillowball mounts deliver precision at the cost of added noise.

Roll Centre Adjusters (RCA) Explained

Many enthusiasts are surprised to find that their car actually suffers from increased body roll and a vague steering feel after lowering it, despite running stiffer coilover springs. This happens because dropping the chassis pushes the lower control arms to an upward angle, drastically altering the vehicle's "roll center" and suspension kinematics. Hardrace Roll Center Adjusters (RCA) are extended ball joints engineered to correct this exact geometry flaw. By installing a Hardrace RCA kit, you push the lower control arm back down to its optimal, flat factory angle. This critical geometry correction instantly restores steering precision, eliminates dangerous bump steer, and significantly reduces chassis body roll, ensuring your lowered build actually handles as aggressively as it looks.

The Summary:

Hardrace gives you a wide range range of products to upgrade, dial-in or corect your geometry, if you're needing any of the above, check the links below: