KW Clubsport 3-Way Coilover Kit BMW 1 Series M135i F20/F21 RWD (Non-EDC/Non-Adaptive) Remote/External Reservoir, Tri-Adjustable Rebound & Compression, Height Adjustable Suspension, 2015+ (Chassis 1K2/1K4) Track/Fast Road

KW Clubsport 3-way Suspension Kit for BMW M135i F20 F21, rear wheel drive, without adaptive dampers

Serious about lap times and razor-sharp handling on the road and circuit? This tri-adjustable KW Clubsport package delivers elite chassis control for the BMW 1 Series M135i. With external reservoirs, separate adjustment for rebound, low-speed bump and high-speed bump, and fully adjustable ride height, it is a proven track-focused upgrade that still works brilliantly on fast road. If you are chasing a real handling transformation for your F20 or F21 M135i, this is the upgrade enthusiasts choose.

Vehicle compatibility

• Model: BMW 1 Series M135i, F20 and F21
• Drive: rear wheel drive only
• Factory dampers: for cars without electronic or adaptive damping
• Chassis codes: 1K2 and 1K4
• Model year: 2015 onwards

Ride height adjustment range

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

Maximum permitted axle loads

• Front: 921 to 1090 kg
• Rear: up to 1230 kg

Why this kit is a game changer

• Triple adjustability lets you tune for road comfort, sprint events or full track days with confidence.
• External reservoirs keep damping consistent during long stints and hot conditions.
• Sharper turn-in, stronger mid-corner support and improved traction on corner exit.
• Height adjustment within a tested range for a lower centre of gravity and purposeful stance.
• High quality components engineered for durability and repeatable performance.

Tri-adjust control made simple

• Rebound: 16 clicks for fine control of body movement and ride quality.
• Low-speed compression: 6 clicks via the purple adjuster for platform and support.
• High-speed compression: 14 clicks via the gold adjuster for kerb strikes and bumps.
• Independent adjustment with separate canisters for stable performance under heat and load.

Developed on the track, exceptional on the road

KW’s motorsport know-how and extensive development on demanding circuits like the Nurburgring flow directly into this Clubsport kit. The result is a set-up that feels alive and predictable, giving you the confidence to push harder while remaining useable for spirited road driving.

Hardware highlights

• External-reservoir dampers with independent rebound, low-speed and high-speed compression adjustment.
• Continuously adjustable ride height within a defined, tested range.
• Premium materials and motorsport-grade sealing for long-term reliability.
• Adjustable top mounts available on certain applications.
• Supplied with documentation and approval papers.

Real feedback from enthusiasts

We run KW Clubsport on our own builds and our customers consistently report crisper steering response, balanced chassis behaviour and faster, more consistent laps. Confidence rises, lap times fall and the car remains enjoyable for fast-road miles.

Professional installation and setup

For best results we recommend expert fitting, alignment and corner-weighting. Book with MJ Modifications in Warwickshire for geometry setup tailored to your driving. Request a quote: info@mjmodifications.co.uk.

Search-friendly terms people use for this kit

BMW M135i F20 F21 suspension upgrade, triple adjustable coil-over kit, external reservoir shocks, fast road and track suspension, rear wheel drive 1 Series handling, height adjustable damper kit, non adaptive suspension cars, 2015 on M135i RWD, F20 F21 1K2 1K4 chassis upgrade, performance suspension for BMW M135i, adjustable rebound and compression shocks, track day setup for 1 Series.

Order your KW Clubsport 3-way kit today and unlock precision, grip and confidence from your BMW M135i on road and track.