KW V2 Variant 2 Coilovers for BMW 1 Series M135i/M140i (F20/F21) RWD/2WD – Height Adjustable Suspension Kit, Rebound Adjustable Shocks & Springs, Stainless Steel – Non-EDC / Without Adaptive Dampers (Chassis 1K2, 1K4) Lowering Kit

KW Variant 2 adjustable suspension for BMW 1 Series M135i and M140i F20 F21 RWD without adaptive damping

Transform the way your BMW 1 Series drives and looks with the KW Variant 2 height adjustable suspension kit. Perfect for rear wheel drive F20 and F21 M135i and M140i models that were supplied without factory electronic damping. This premium spring and damper package lets you fine tune rebound in 16 steps for the ideal balance between fast-road confidence and everyday comfort, while delivering a clean, level stance and sharper handling.

Fitment and key specs

• Vehicle compatibility: BMW 1 Series F20 and F21 M135i and M140i rear wheel drive without adaptive dampers. Chassis codes 1K2 and 1K4.
• Ride height range: Front drop 25 to 50 mm. Rear drop 30 to 55 mm.
• Permitted axle loads: Front 921 to 1090 kg. Rear up to 1230 kg.
• Damping control: 16-click rebound adjustment via top-mounted wheel or supplied adjuster.
• Construction: Stainless steel damper bodies with corrosion resistant hardware for long life in UK conditions.

Why choose this KW Variant 2 kit

• Dial in your setup for the road, B-roads, or track days with easy rebound tuning. Go firmer for razor sharp response or softer for commuting comfort.
• Stainless steel bodies resist rust, making this a superb choice for year-round driving in the UK.
• Vehicle specific valving improves body control, turn in and high speed stability while maintaining ride quality.
• Continuously height adjustable threads for precise stance and wheel fitment without compromise.
• Twin-tube damper architecture for consistent performance and durability.

Real-world benefits

• Improved cornering grip and reduced roll for confident direction changes.
• More direct steering feel and better traction out of bends.
• Optimise handling for larger wheel and tyre packages with on-car rebound tweaks.
• Refined ride on imperfect UK roads without sacrificing performance.

What you get

• Front and rear dampers with height adjustable spring seats.
• Matched performance springs and necessary mounting hardware.
• Rebound adjustment tool and full installation documentation.
• KW manufacturer warranty of 2 years. Warranty can extend to 5 years when installed by a KW specialist dealer.

Our experience

We have fitted these kits to customer M135i and M140i builds and the feedback has been superb. The car feels planted, more predictable and far more engaging, with a ride that you can tailor to suit. This is a serious upgrade for anyone searching for a BMW F20 F21 suspension kit, M135i lowering kit or M140i shocks and springs that works brilliantly on UK roads.

Fitting and support

Professional installation recommended. Book your fitting with MJ Modifications in Warwickshire for expert setup and alignment. Email info@mjmodifications.co.uk for a quote and availability.

Search-friendly terms to help you find the right kit

BMW 1 Series F20 suspension upgrade. F21 suspension kit. M135i adjustable shocks. M140i height adjustable suspension. Non adaptive suspension kit. Rear wheel drive suspension package. Stainless steel shock absorbers. Performance suspension for road and track. Lowering springs and dampers for BMW 1 Series.