Is Lowering Springs Legal in the UK?
Lowering Springs are legal in the UK as long as the car stays safe and roadworthy. There is no minimum ride-height law, but lower it too far and it fails the MOT.
Why?
Lowering springs swap your standard springs for shorter, usually stiffer ones to drop the car a fixed amount. Fitting them is legal: the UK sets no minimum ride height in millimetres, only that the car stays safe and roadworthy.
That means the tyres must stay covered by the arches, the suspension geometry must stay within safe limits, and the car must not be so low it bottoms out or grounds its underside on normal roads. Go too far and you risk an MOT failure or a "dangerous condition" offence.
Lowering also throws out your headlamp aim, which is an MOT check, so the lights should be re-aimed after fitting. And, as with any modification, you must declare it to your insurer.
What decides if it's legal
- Tyres must stay covered by the wheel arches.
- No bottoming-out or grounding on normal roads; geometry must stay safe.
- Headlamp aim re-checked after lowering (an MOT item).
- Declare the modification to your insurer.
Does it depend on your car?
A typical lowering-spring drop (around 25-40mm) is usually trouble-free, but the safe amount depends on the car's arch clearance and standard geometry. Your specific car's page covers the springs that fit and how far they drop.
Related UK legality guides
Sources
This page is general guidance, not legal advice, on UK rules for lowering springs. The detail varies by exact vehicle and changes over time - confirm with your insurer and the latest DVSA/GOV.UK guidance before modifying.