Suspension Secrets

Suspension Secrets Front Offset Caster Bushes - BMW G42 M240I

£435.00

Including Taxes

In Stock

Lifetime Warranty Included

Lifetime Warranty Included

Free Worldwide Shipping

Free Worldwide Shipping

Technical Support Available

Technical Support Available

Transform the performance of your BMW's front axle with our Suspension Secrets Front Offset Caster Bushes.

The standard bushes in the front lower control arms on the BMW G42 M240i are made from soft rubber filled with oil. This rubber/oil combination flexes when cornering, which leads to vagueness in the steering and understeer. The flexing of the rubber also contributes to instability when braking hard.

Our Suspension Secrets Front Offset Caster Bushes for the BMW G42 M240i fixes both of these issues whilst also improving suspension geometry too.

As our Suspension Secrets Front Offset Caster Bushes for the BMW G42 M240i are solid they do not flex like the original bushes, ensuring your steering remains accurate and communicative whilst also improving braking stability.

Our offset caster bushes also feature offset rose joints which increase positive caster, resulting in improved steering feel and more cornering grip thanks to the dynamic camber gain generated by caster.

We've also developed these bushes to help those G42 M240i owners that already have caster-adjustable suspension top mounts fitted.

When running maximum caster, the front wheels can collide and rub against the wheel arch liners when turning, as they are no longer perfectly in the centre of the front wheel arch. Our caster bushes can be used to return the front wheels into the centre of the wheel arch, preventing them from rubbing against the wheel arch liners whilst not having to reduce positive caster on the suspension top mount.

The benefits of installing our Suspension Secrets Front Offset Caster Bushes for the BMW G42 M240i include:

  • Increased cornering grip and steering feel thanks to increased positive caster
  • Improved braking stability and steering accuracy
  • Enables complete control over suspension caster angle
  • Allows you to run maximum camber on camber-adjustable top mounts without catching inner arch liner
Geometry Explained

Caster
Caster is the measure of how far forward or behind the steering axis is to the vertical axis, viewed from the side. This is measured by drawing a line between the top and bottom pivot points of the front upright. The angle between the drawn line and vertical is the caster angle

Product Development

All Suspension Secrets upgrades are designed, developed and manufactured in-house. This process includes prototyping new products using CAD and 3D printing technology, and extensive rear-world testing with professional racing drivers. Sophisticated motorsport data capturing equipment allows us to measure the handling performance gains achieved by our parts.

Delivery and returns

All parts purchased on our website are shipped internationally free of charge. We accept return requests made within 14 days of receipt of the item.

Need help with something?
Email: sales@suspensionsecrets.co.uk

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What our customers say.

Real feedback from customers who have transformed the handling of their cars with Suspension Secrets upgrades.

G87 M2 Handling transformation

Supplied and fitted by the team at Suspension Secrets along side their solid front control arm bushes and Eibach Pro springs. I cant recommend this enough, stability and grip are ...
Supplied and fitted by the team at Suspension Secrets along side their solid front control arm bushes and Eibach Pro springs. I cant recommend this enough, stability and grip are on another level. A* service provided by the team from start to finish. Highly recommended!

- A.J.S

Effortless & Accurate

The results have exceeded my expectations, I'm really pleased with the car. The ride is similar to stock but it's taken the jitteryness away over small ripples in the road. ...
The results have exceeded my expectations, I'm really pleased with the car. The ride is similar to stock but it's taken the jitteryness away over small ripples in the road. I was slightly apprehensive that the stock dampers might be exposed but I needn't have worried, the car rides exactly as I'd expect & want from a roadgoing M-car. The real revelation is the steering, I could feel the difference as soon as I turned out of your premises. Gone is the sluggish, heavy response - it's now quick, effortless & accurate, almost as if the power steering had been switched off beforehand. The car feels like it's 200kg lighter but at the same time, more solid & composed. For me, it's a perfectly-judged road setup - thanks again

- Glenn C.

Transformational

Recently bought a 2025 M3 LCI which seemed ok out of the box. In the wet there was quite bad understeer and slightly unpredictable transition into oversteer. The CS+ handling ...
Recently bought a 2025 M3 LCI which seemed ok out of the box. In the wet there was quite bad understeer and slightly unpredictable transition into oversteer. The CS+ handling package transformed the car. The grip is ridiculous, feel is improved, can really lean on the car. Driving in the wet traction is like it’s dry, extremely stable. Car is predictable, any transition to understeer or oversteer is communicated and feels like slow motion with plenty of time to correct. Feel like all the handling of a CS car with all the comfort or a regular M car. Absolutely love the car now.

- Yaqub A.