XYZ Racing Hollow Rear Brake Kit — Mercedes Benz E CLASS W124 300 CE (1987-1992)

The W124 300 CE was built to cover ground. It is a heavy, pillarless coupe from the era when Mercedes over-built everything, and on a car this solid the rear axle earns its keep hauling the whole mass down from a cruise. The original rear discs were specified for a refined grand tourer, not for repeat hard stops, and they are the first thing to go soft once you start driving the car the way its straight-six tempts you to.

The XYZ Racing Hollow Rear Brake Kit exists for the 300 CE owner who wants the rear end to keep pace with the front under load. Built around hollow-vane two-piece discs that shed heat and rotating mass, it gives the W124 a rear axle that holds its bite through a long descent or a track session instead of going long and wooden.

What this rear brake kit does for your 1987-1992 Mercedes Benz E Class W124 300 CE

On a coupe as heavy as the 300 CE, fade shows up at the rear as a soft, lengthening pedal well before the fronts complain. The hollow-vane disc design pulls heat out of the friction surface faster and cuts rotating weight, so the rear recovers between stops and the pedal stays firm. Pad compound is the tuning knob here: the Street compound keeps things quiet and low-dust for road use, the Sport compound adds bite and heat range for fast road with the odd track day, and the Racing compound holds friction temperature under sustained circuit abuse. Because the rear works front and rear braking into balance, a consistent back axle stops the nose dominating every stop and keeps the car settled when you lean on the pedal from speed.

About the Hollow rear brake kit

The "Hollow" name points to the rotor construction: two-piece floating discs with a lightened, internally vented vane structure that moves heat away from the pad face, which matters most on a kerb-heavy coupe that converts speed into heat in a hurry. Trimming rotating and unsprung mass at the rear also sharpens how the W124’s axle settles over bumps as the brakes load up. Three pad compounds, Street, Sport and Racing, span quiet daily driving through to track use, all running on the same disc and caliper hardware, so the car’s character changes with a pad swap rather than a full rebuild. The caliper is a hollow-body design as standard, and serious track users can step up to the Hollow Racing caliper, which drops the dust cover, is rated to 1000C and carries a two-year warranty. Included caliper colours are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone shade for an upcharge, plus premium polished-forged and candy finishes when you want the hardware to read as part of the build.

Fitment for the Mercedes Benz E Class W124 300 CE (1987-1992)

This kit is cut for the W124 300 CE coupe across the 1987 to 1992 build span and fits the rear axle of that model specifically, supplied as a matched pair of rear calipers and discs. Confirm your chassis is the W124 300 CE before ordering, since other W124 variants differ at the rear. Pad compound, disc style and caliper colour are all chosen when you order.

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Choose your disc style, pad compound and caliper colour above and build your 300 CE rear brake kit to suit how you drive.