STXA Coilovers ST Suspensions BMW 1 Series

STXA coilover kit by ST Suspensions for BMW 1 Series M135i / M140i (F20, F21), (1K2, 1K4), 2WD, without adaptive suspension. Years: 09/11-.

• Maximum permitted front axle weight: 921 to 1090 kg
• Maximum permitted rear axle weight: -1230 kg
• Front lowering: 25 to 50 mm
• Rear lowering: 30 to 55 mm
• STXA range derived from motorsport: height and damping adjustment
• Height adjustment at the front and rear (on vehicles that allow it) via a disc located on the threaded body of the shock absorber
• Precise damping adjustment via a progressive knob on top of the shock absorber shaft, to fine-tune a custom setup
• Galvanized and anti-corrosion coating for extended service life
• Galvanized steel strut tubes

Installation and kit contents

The coilovers are supplied in sufficient quantity to equip the vehicle and replace the original suspension without modification. If the vehicle only has rear springs originally, the same applies to this kit.

Only STXTA models are sold with strut mounts: for any other model, original strut mounts are required for installation. The kit is supplied bare (shock cartridges and springs where applicable), unless an accessory essential for lowering is required.

ST Suspensions is a KW brand, and products under this brand are manufactured by KW.

Technical note before ordering: on M-Tech equipped models, only use lowering springs. Lowering will be 20 mm less than indicated. Installation may require wheel spacers.