Ultra Racing 16mm Rear Sway/Anti-Roll/Stabiliser Bar (ARB) - BMW 1 Series F20 F21 & 3 Series F30 F31 F34 F80 M3 - Handling Upgrade - Fits M135i M140i 335i 340i - Rear Roll Control/Torsion Bar

Ultra Racing Rear Roll Control Upgrade for BMW F20 F21 F30 F31 F34 F80

Transform the way your BMW steers and corners with this 16 mm Ultra Racing rear roll control bar. Designed for the F-series 1 Series and 3 Series chassis, it delivers flatter cornering, crisper turn in and a more composed rear axle on fast road and track days. A direct bolt-on using factory mounting points, it is a proven handling enhancement for daily driving and spirited B-road blasts alike.

• Diameter: 16 mm
• Direct fit to OEM mounts and hardware unless supplied
• Rear roll stiffness increase for improved balance and stability
• Ideal for fast road, track day and performance builds

If you are searching for a BMW F-series rear roll bar, rear sway upgrade, rear stabiliser bar, antiroll bar, rear ARB or rear torsion bar for F20, F21, F30, F31, F34 or F80 models, this Ultra Racing bar is the high quality solution that delivers immediate results.

What you will feel

• Noticeably reduced body lean for greater confidence in corners
• Improved rear axle grip and traction on exit
• Sharper steering response and predictable chassis balance
• Enhanced stability at speed without sacrificing day to day comfort

Compatibility

Model years 2010 onwards

• BMW 1 Series F20 F21 including M135i and M140i
• BMW 3 Series F30 F31 F34 and F80 including 335i and 340i

Real world feedback

We have fitted and run this Ultra Racing rear bar on customer cars and our own builds. Drivers consistently report flatter cornering, better rear end composure and a more planted feel on B-roads and during track sessions. It is a go to BMW handling mod for owners who want a simple, effective upgrade that works.

Installation

Straightforward bolt on. Professional fitting recommended for best results and alignment. MJ Modifications in Warwickshire can supply and install this bar. Request a fitting quote via info@mjmodifications.co.uk.

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Add this Ultra Racing rear roll control bar to your BMW and enjoy tighter, more responsive handling every time you drive.