ST Suspensions XA Coilovers by KW - BMW 1 Series F20/F21 (2011-2019) RWD/2WD - Height & Rebound Adjustable Coilover Suspension Kit - Non-EDC/No Adaptive Damping - Performance Lowering Kit, Adjustable Shocks & Springs (1K2, 1K4)

BMW 1 Series F20 F21 Height Adjustable Suspension Upgrade – ST XA

Give your BMW 1 Series the sharp, planted feel it deserves. This height and rebound adjustable shock and spring package transforms the F20 and F21 with genuine fast-road composure and a purposeful stance. Developed with KW Automotive, it delivers precise handling, reduced body roll and confident road feedback while still being comfortable for daily use.

Why enthusiasts choose this adjustable suspension kit

• Rebound adjustment on-car at the top of the piston rod – dial in firmer or softer settings to suit road conditions and driving style
• Noticeably flatter cornering, better high-speed stability and improved steering response
• Custom ride height for the perfect stance and practical clearance
• German-engineered twin-tube dampers for consistent performance
• Galvanised, multi-coated bodies and comprehensive sealing for durability in all UK weather

Lowering range

• Front: 25 to 50 mm
• Rear: 30 to 55 mm

Fitment and vehicle details

• BMW 1 Series F20 and F21 hatchback
• Chassis codes: 1K2 and 1K4
• Two-wheel drive models only
• For cars without adaptive damping or electronic damper control
• Maximum allowed axle weight: Front 920 kg, Rear 1230 kg

What you get

• Height adjustable threaded struts front and rear
• External rebound adjustment
• Performance springs, adjustable spring seats and perches
• Bump stops and dust boots
• TUV-tested adjustment range

Real-world results

We run this setup on customer builds and it simply works. Faster turn-in, more grip on B-roads, a smoother ride on the motorway when softened and the exact ride height you want. Our buyers consistently report a huge improvement over stock suspension with a quality feel backed by KW know-how.

Built to last

Twin-tube damper technology, a chrome-plated piston rod and a robust guide and seal package minimise friction and protect against corrosion and dirt. The galvanised, coated bodies are designed for long-term reliability through British winters.

Popular search terms this kit answers

BMW F20 suspension upgrade, BMW F21 lowering kit, BMW 1 Series adjustable shocks, height adjustable coil over suspension, rebound adjustable dampers, fast road suspension, performance suspension kit for BMW 1 Series, stance and handling upgrade.

Professional installation

Want it fitted right first time? Book installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote and setup advice.