XYZ Racing Top Sport Coilovers — Mercedes-Benz GLB X247 4WD φ55 2019-2026

The GLB X247’s tall body and 4WD hardware add weight up high and at both axles, which is exactly where a soft factory spring rate starts to show as float and pitch under braking. XYZ Racing’s Top Sport coilover raises spring rate roughly 2kg/mm over street settings and adds 30-50% more damping force, so the extra mass stops rocking the body around every time you brake, turn in or get back on the throttle.

Built for owners who take the GLB out for the occasional track day but still need it as a daily 4WD family car, Top Sport sits between a fast-road kit and a full race setup. It is calibrated so the car stays composed when pushed hard without turning the ride brittle on the school run.

What this coilover does for your 2019-2026 Mercedes Benz GLB

The raised spring rate and added damping force absorb the hit from expansion joints and potholes rather than passing it straight into the cabin, which matters on a tall 4WD platform where an unsettled body translates into steering that goes light mid-corner. XYZ Racing’s own Top Sport track-day tuning suppresses body shock on the bigger impacts specifically, so the tyre stays in contact with the road instead of skipping across it under load. That contact patch consistency is what actually increases traction – not a stiffer spring on its own, but the combination of rate and damping working together so the tyre keeps loading properly through direction changes. On a GLB carrying 4WD driveline weight, that translates into less nose-dive under braking and a more settled rear when power comes down through all four corners. Owners pushing the GLB into an on-ramp or a track day corner will feel the difference immediately in how much less the body rolls before the chassis takes a set.

About the Top Sport coilover

XYZ Racing developed the Top Sport line directly from its own track-day testing, dialling spring rate and damping up from street specification until the setup could shrug off big hits without losing composure. The formula is straightforward: increase spring rate by around 2kg/mm and damping force by 30-50% over a comfort-oriented street coilover, which gives the suspension enough control to stop the body from continuing to move after the initial impact of a bump or kerb strike. That extra control is what XYZ Racing calls "suppressing shock body" – stopping the car’s mass from oscillating once a wheel has absorbed the hit – and it is the mechanism behind the claimed increase in tyre traction. Every setting on the Top Sport kit traces back to XYZ Racing’s own aggressive-driving and track-day experience rather than a generic off-the-shelf valving curve. The result is a kit aimed squarely at drivers who want stability through hard cornering and confident handling under aggressive inputs, without the compromises of a pure competition-only setup.

Fitment for the Mercedes Benz GLB (2019-2026)

This Top Sport kit is built for the Mercedes Benz GLB X247 4WD, chassis code ME64, covering the 2019-2026 model years with a φ55 damper body. Confirm your build year falls within this range before ordering, since Mercedes revised suspension hardware across the X247’s production run.

What buyers also search for

• Mercedes Benz GLB coilover upgrade for road and occasional track use
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• Mercedes Benz GLB Top Sport damping tuned for aggressive daily driving
• ME64 chassis coilover kit for a tall 4WD platform
• GLB X247 spring rate upgrade without losing daily driveability

Spec your φ55 Top Sport kit for the GLB X247 below and build yours to match how you actually drive it.