KW Street Comfort Coilovers for BMW 1 Series M135i and M140i F20 F21 xDrive 4WD with electronic dampers
Transform the way your BMW 1 Series drives every day with KW Street Comfort Coilovers. If your factory suspension or an old aftermarket kit feels too harsh on British roads, this comfort-focused coilover kit delivers the refined ride quality you want with the control you expect from KW. Perfect for daily driving, commuting, motorway miles and B-road runs, the KW Street Comfort system blends subtle lowering with expertly tuned damping for genuine comfort and confidence.
We have installed these kits on customer cars and our own demonstrators at Nforcd, and feedback has been consistently positive. The ride is supple without being floaty, body movement is well controlled, and the car feels more planted while remaining genuinely comfortable for everyday use.
Why choose KW Street Comfort for your M135i or M140i
- Designed for comfort-first road use with precise handling and stability
- 16-click adjustable rebound damping - dial in softer or firmer ride to suit your driving style
- Ride height adjustable for a subtle, tasteful stance and improved road manners
- Stainless steel inox-line damper bodies for outstanding corrosion resistance and long service life
- Vehicle-specific spring and damper tuning developed by KW test engineers on the road and KW 7-post rig
- Dirt-resistant trapezoid thread and composite spring seat for smooth adjustments over time
- Ideal for cars running larger wheels and tyres - easily fine tune rebound to suit
Lowering range
Front: 20 to 45 mm
Rear: 20 to 45 mm
Maximum allowed axle weight
Front: 1001 to 1020 kg
Rear: up to 1120 kg
Fitment
- BMW 1 Series M135i and M140i - F20 and F21
- xDrive 4WD models with electronic dampers
- Model codes: 1K2, 1K4
Comfort you can adjust
With 16 precise clicks of rebound adjustment, you control the balance between comfort and firmness without affecting compression damping. Increase rebound for tighter body control, sharper turn-in and greater stability, or back it off for an even smoother, more compliant ride on rougher roads. It is quick, simple and genuinely transformative.
Built to last
KW’s stainless steel inox-line construction and high quality components resist corrosion for long-term reliability, so ride height adjustments stay smooth and consistent year after year. This is a premium, road-focused coilover kit engineered to enhance your BMW’s comfort, confidence and usability.
Professional fitting and setup
For installation and geometry setup, we recommend booking with Nforcd in Warwickshire. Our team has extensive experience with BMW F20 and F21 platforms and KW suspension. Request a fitting quote at Sales@nforcd.com.
Search-friendly highlights
KW Street Comfort coilovers for BMW M135i coilovers, BMW M140i coilovers, BMW 1 Series F20 coilovers, BMW 1 Series F21 coilovers, xDrive 4WD suspension, electronic damper compatible, ride height adjustable 20-45 mm, 16-click rebound adjustable, inox-line stainless steel coilovers, comfort coilovers UK, BMW F20 suspension upgrade, BMW F21 suspension upgrade, Nforcd Warwickshire fitting.