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Suspension Secrets BMW F20/21 M135i/M140i Front Offset Caster Bushes
£435.00
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Suspension Secrets BMW F20/21 M135i/M140i Front Offset Caster Bushes
Suspension Secrets offers a solution to transform the performance of the BMW F20 M135i/M140i front axle with their Suspension Secrets Front Offset Caster Bushes.
The standard front lower control arm bushes in the BMW F20 M135i/M140i are crafted from soft rubber. This pliable material flexes during cornering, leading to imprecise steering and understeer. The rubber’s inherent flexibility also compromises stability under hard braking.
Suspension Secrets Front Offset Caster Bushes directly address these issues while simultaneously refining suspension geometry. Unlike the original bushes, these solid caster bushes eliminate flex, ensuring the steering remains precise and communicative. This rigidity also significantly improves braking stability.
Enhanced Steering and Grip Through Optimized Caster
The offset design of these caster bushes incorporates rose joints that increase positive caster. This augmentation results in a noticeable improvement in steering feel and increased cornering grip. The enhanced grip is a direct benefit of the dynamic camber gain generated by the increased caster.
Compatibility with Caster-Adjustable Top Mounts
Suspension Secrets has also developed these bushes to assist BMW F20 M135i/M140i owners who have already installed caster-adjustable suspension top mounts. When running maximum caster, the front wheels can shift, potentially rubbing against the wheel arch liners during turns. These caster bushes can realign the front wheels within the center of the wheel arch, preventing rubbing without the need to reduce positive caster on the suspension top mount.
Key Benefits of Installing Suspension Secrets Front Offset Caster Bushes:
- Increased cornering grip and steering feel due to enhanced positive caster.
- Improved braking stability and steering accuracy.
- Enables complete control over the suspension caster angle.
- Allows the use of maximum camber on camber-adjustable top mounts without inner arch liner contact.
HANDLING SPECIALISTS
UK AUTHORISED DEALER
SUSPENSION EXPERTS
A wealth of experience derived from years working within race environments.
AIRCRAFT-GRADE MATERIALS
Lightweight and strong, the cornerstone for all materials used in our performance parts.
TRACK READY SETUPS
Everything you need to dominate on-track. From suspension and geometry to braking solutions.
// DESIGNED & MANUFACTUERED IN THE UK
It's time to give your suspension some attention. We are delighted to be working alongside supercar alignment specialists Suspension Secrets to enhance the performance of all vehicles using the standard adjustment provided with the car. We tweak the settings to reduce understeer and “switch on” the handling capabilities of the car.
Also specialising in Porsche, Mclaren and BMW suspension systems, working extensively to develop all our setups that we apply to cars with many road and track miles testing the setups that we design.
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SS-FCB007 Confirmed Fitment
Please note, this information is a combination of supplier provided compatibility data and our workshop expertise. While every effort has been made to ensure the accuracy of this information Progressive Parts Ltd are not liable for abnormalities or inaccurate data. Customers are wholly responsible for checking fitment for their vehicle. More information is available from our Terms & Conditions
1 Sports Hatch (F20) M 135 i (N55 B30 A) | 320hp
Petrol 2979cc | Hatchback | 2012 - 2015
1 Sports Hatch (F20) M 135 i (N55 B30 A) | 326hp
Petrol 2979cc | Hatchback | 2015 - 2016
1 Sports Hatch (F20) M 140 i (B58 B30 A) | 340hp
Petrol 2998cc | Hatchback | 2016 - 2019
1 Sports Hatch (F21) M 135 i (N55 B30 A) | 320hp
Petrol 2979cc | Hatchback | 2011 - 2016
1 Sports Hatch (F21) M 135 i (N55 B30 A) | 326hp
Petrol 2979cc | Hatchback | 2015 - 2016
1 Sports Hatch (F21) M 140 i (B58 B30 A) | 340hp
Petrol 2998cc | Hatchback | 2015 - 2019
2 Coupe (F22, F87) M 235 i (N55 B30 A) | 326hp
Petrol 2979cc | Coupe | 2013 - 2016
2 Coupe (F22, F87) M 240 i (B58 B30 A) | 340hp
Petrol 2998cc | Coupe | 2015 - 2021
Stock at Progressive Parts
Delivery timescales are given as estimates in good faith, but cannot be taken as precise or exact information. We highly advise against booking installation/workshop time or engaging in preparatory work until you've received and inspected the goods.
What do our stock statuses mean?
1+ IN STOCK in green stock is readily available in one of our warehouses for express delivery (at the time of viewing).
LOW STOCK in green means we're running low! 1 or 2 left on the shelf so act fast. Over evenings, weekends and bank holidays this stock can move quickly so please bear this in mind.
0 IN STOCK in blue means our primary warehouse does not have unallocated stock, but our UK partners do. Often these can be shipped quickly and efficiently. You'll be notified via the Track My Order page if further delays are unavoidable.
MADE TO ORDER in blue means we've partnered with a supplier which primarily makes their products to order. It's not on our shelf, but your order goes into production immediately.
0 IN STOCK in orange means everybody we work with is unfortunately out of stock. Stock is not available in the UK. The best course of action is to place an order to create an allocation from the next batch arriving.
OUT OF STOCK in red. This product is unavailable to order, for whatever reason we're unable to obtain stock or there is an issue with supply/lead times.
We're tuners too!
Our staff are car enthusiasts, we understand the need for speed... This includes getting your orders out the door as quickly and securely as possible!
In some instances, extended lead times are unavoidable. This is as labour-intensive and frustrating for us as it is for you, please know we are doing our best to facilitate your modification goals. Abuse of our staff or systems will not be tolerated.
Thank you, Team PP
In the words of the Vehicle Standards Agency (VCA), type approval provides "confirmation that production and samples of a design will meet specified performance standards".
For emissions components this encompasses noise, emissions and balanced back pressure, which have a strong influence on maintaining engine performance (power), and fuel efficiency. Type approval ensures that an aftermarket component will reach, or exceed the performance standard of the corresponding OE part.
Type-approval then, is a certain guarantee that an end user will receive a product of OE equivalent performance attributes.
Products on the Progressive Parts website that meet this approval will be clearly marked or labelled EC or ECE approved.