XYZ Racing Circuit Master Coilovers — Mercedes-Benz A CLASS W177 φ53 (Rear Multi-Link Suspension)(Modified Rear Integrated) 2018-2026

The W177 A-Class you’re modifying is one of the few in its generation fitted with a proper multi-link rear axle rather than the torsion beam that lesser variants in the same range make do with, and that independent geometry is exactly what the Circuit Master coilover is built to exploit. XYZ Racing’s top-tier circuit kit replaces the factory dampers front and rear with a fully adjustable design specced for sustained lap-time work, not just a firmer daily ride.

Where a Super Sport kit is calibrated around fast-road comfort, Circuit Master is tuned for repeated heat cycles and consistent damping through a full session, and it’s built to match the ME50-1 chassis’s rear multi-link mounting points with a modified, integrated rear unit rather than a generic bolt-on adapter.

What this coilover does for your 2018-2026 Mercedes Benz A CLASS

Installed on a multi-link W177, the kit gives you independent ride height and damping control front and rear, so you can drop the nose to counter the transverse engine’s forward weight bias without giving up rear axle control through direction changes. The multi-link rear, already the more capable of the two W177 rear suspension layouts, responds well to the firmer spring rates and low-speed damping this kit allows, holding the outside rear tyre flatter under trail-braking and putting power down cleaner out of slow corners. With thousands of possible adjustment combinations across the range, you can set a base that suits your circuit of choice and then trim compression and rebound separately as tyre condition and track temperature shift through the day. Monotube construction keeps oil temperature more consistent than a twin-tube design would manage over repeated flying laps, so damping force stays predictable from the first lap to the last.

About the Circuit Master coilover

Circuit Master sits at the top of XYZ Racing’s range, built on the same platform logic as the brand’s Racing Spec and Tarmac Rally dampers rather than as a fast-road product wearing a track badge. XYZ’s own racing teams have run the design on circuits worldwide, and the development brief was simple: hold a consistent spec through a full session instead of fading after a handful of hot laps. Three external adjustment knobs per corner control the damper, routing oil through a deliberately small-bore internal passage to sharpen response – the trade-off is a faint noise through the coilover over sharp bumps or kerbs, which is a normal side effect of that valving rather than a fault. Across the range XYZ quotes 9,720 distinct adjustment combinations, enough resolution to separate compression from rebound and match the setup to a specific circuit layout rather than compromising across several. It’s a kit built for drivers who spend more time on a circuit than a motorway, and the tuning window reflects that priority throughout.

Fitment for the Mercedes Benz A CLASS (2018-2026)

This kit is specced for the W177-generation A-Class built 2018 to 2026 and fitted with the multi-link rear suspension, not the torsion-beam rear axle used on lower-powered variants in the same range. XYZ Racing lists it under chassis code ME50-1, with a modified, integrated rear damper design engineered specifically around the multi-link mounting points rather than adapted from a torsion-beam application. Confirm your car has the multi-link rear axle before ordering, since the two W177 rear suspension types are not interchangeable on this kit.

What buyers also search for

• Mercedes A-Class W177 coilover upgrade built for both track days and fast road driving
• Mercedes A-Class multi-link rear suspension coilover kit for chassis code ME50-1
• A-Class Circuit Master damping designed to hold its spec across repeat circuit lap sessions
• W177 A-Class 2018-2026 fully adjustable coilovers matched to the multi-link rear axle
• A-Class W177 coilover kit specced around the multi-link rear axle rather than the torsion-beam version

Circuit Master is available across the ME50-1 fitment range in a choice of spring rate and finish – configure yours below.