PFF5-1901 – Front Radius Arm Bush Camber Adjustable – M135i M140i M235i M240i

The Powerflex PFF5-1901 Front Radius Arm Bush (Camber Adjustable) is a Fast Road upgrade designed to improve steering response, braking stability and front-end grip on BMW M135i, M140i, M235i and M240i models. This bush replaces the OEM rubber tension-strut bush and adds camber/caster adjustability, allowing for more precise front-end geometry tuning.

Key Features

Adjustable Caster/Camber Function

– Helps dial in sharper turn-in behaviour
– Improves mid-corner stability
– Enhances front-end balance and grip

Fast Road Polyurethane

– Firmer than OEM rubber
– Reduces unwanted flex in the radius arm
– Maintains daily usability and comfort

More Predictable Steering

– Provides clearer feedback through the wheel
– Improves accuracy when pushing the car
– Reduces vagueness at higher speeds

Braking Stability

– Maintains geometry under heavy load
– Reduces instability caused by OEM bush deformation
– Builds confidence in fast-road driving

Benefits

Perfect for fast-road drivers wanting enhanced steering precision and geometry adjustability without going full Black Series stiffness. Handling becomes more stable, predictable and confidence-inspiring.

Fitment

– BMW M135i
– BMW M140i
– BMW M235i
– BMW M240i

SKU: PFF5-1901

Installation Notes

– Alignment required
– Pressing required
– Slight NVH increase

About Powerflex

Powerflex Road Series bushes offer improved handling precision and durability compared to OEM rubber, while preserving daily drivability.