H&R 25mm Lowering Springs Kit for BMW 1 Series F20 F21 M135i M140i (RWD & xDrive) - Sport Coil Spring Set Front & Rear - Adaptive M Suspension Compatible - TUV Approved - Suspension Drop Kit - Part 28835-1

BMW 1 Series F20 F21 M135i M140i 25 mm Sport Spring Kit by H&R - Part 28835-1

Give your 1er the purposeful stance and tighter body control it deserves. This H&R sport spring set delivers an approximate 25 mm ride height reduction front and rear, unlocking crisper turn in, flatter cornering and a more planted feel without ruining everyday comfort. Designed to work perfectly with factory dampers, including cars fitted with adaptive damping and BMW Adaptive Drive, as well as quality aftermarket shock absorbers.

We have installed this exact kit on multiple M135i and M140i builds in-house and customer feedback has been consistently outstanding. Owners love the balanced drop, the improved confidence on B-roads and the OEM-plus ride quality that makes daily driving a pleasure.

Key advantages

• Approx. 25 mm ride height reduction front and rear for a clean, level look
• Sharper steering response, improved grip and reduced body movement
• Lower centre of gravity for enhanced stability at speed
• Compatible with factory electronic dampers and passive OE shocks
• Powder coated finish for durability and corrosion resistance
• TUV certified for quality assurance and road legality
• Engineered and manufactured in Germany
• Supplied as a complete front and rear coil spring set

Lowering and ride characteristics

Drop: approximately 25 mm at the front and 25 mm at the rear. Expect a more controlled chassis, better composure over undulations and a taught, sporty feel while retaining day-to-day comfort suitable for commuting and long journeys.

Vehicle compatibility

• BMW M135i F20 and F21, rear-wheel drive and xDrive all-wheel drive, including cars with Adaptive Drive
• BMW M140i F20 and F21, rear-wheel drive and xDrive all-wheel drive, including cars with Adaptive Drive

Recommended extras

For optimum travel and comfort with the 25 mm drop, we recommend pairing with the Genuine BMW F20 F21 F22 F23 M Performance Front Bump Stop and Genuine BMW F20 F21 F22 F23 M Performance Rear Bump Stop. A great pairing for M135i, M140i, M235i and M240i models.

Installation and alignment

Professional fitting available at MJ Modifications in Warwickshire. We strongly advise a four wheel alignment after installation and a follow up check once the springs have bedded in, typically after 1 to 2 weeks. Request a fitting quote: info@mjmodifications.co.uk.

Part number

H&R 28835-1

What is included

• H&R sport springs - full car set, front and rear
• TUV documentation
• 1 Year H&R warranty

Why this kit

A proven suspension upgrade for the F20 F21 platform, this 25 mm sport spring kit delivers the ideal blend of stance, feedback and composure for spirited road use and subtle track work while maintaining daily usability.

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