
XYZ Racing Hollow Rear Brake Kit — Mercedes Benz CL 550 W216 (2006-2013)
SKU: XYZ-BRK-BKR-ME-59-A-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø380–421 mm
- Caliper pots8-pot
- Lead time10–15 working days
Fits Mercedes Benz CL 550 W216 (2006-2013)
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Caliper render for this kit:

The CL 550 W216 carries close to two tonnes of grand-tourer mass, and on a long Alpine descent or a run of hard stops from motorway speed it is the rear axle that decides whether the car settles or starts to shimmy. This XYZ Racing Hollow Rear Brake Kit for the Mercedes Benz CL 550 W216 (2006-2013) replaces the standard rear setup with two-piece floating discs and a fixed multi-piston caliper, built to shed heat and hold a firm pedal when the standard hardware has long since gone soft.
This is a rear big brake kit aimed at owners who actually use the car’s performance: spirited B-road driving, towing-laden touring, and the kind of repeated heavy braking that exposes a heavy coupe’s thermal limits. It is a balance upgrade as much as an outright stopping-power one, keeping the back of the car planted while the fronts do the heavy lifting.
What this brake kit does for your 2006-2013 Mercedes Benz CL 550 W216
After fitting, the first thing you notice is a firmer, more linear pedal that does not lengthen as the discs warm through. The two-piece floating disc design cuts rotating and unsprung mass at the rear, which sharpens the car’s response over mid-corner bumps and helps the dampers keep the rear tyres loaded. Heat is managed far better than the closed-vane original, so fade resistance climbs on long downhill stretches and back-to-back stops. With three pad compounds available, you can match the kit to how the CL 550 is driven: Street for refined road manners with low dust, Sport for firmer bite on harder road and occasional track, or Racing for sustained high-temperature work. The result is a rear end that stays composed and predictable under load rather than locking early or going wooden.
About the Hollow Rear Brake Kit
The kit pairs a two-piece floating disc with a hollow-body forged caliper, the standard caliper construction across the range, machined to keep stiffness high while shedding weight. The disc’s friction ring floats on an alloy bell so it can grow with heat and dissipate it without distorting, and the fixed caliper applies consistent clamping pressure across the pad face. Three pad compound grades cover the full use spectrum from quiet road driving to track-temperature abuse, letting you tune feel and longevity to your own driving. Painted calipers come in Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone for a small upcharge and premium polished-forged or candy finishes available, so the kit can sit discreetly behind the standard alloys or stand out behind an open spoke design. Everything is engineered as a rear-specific assembly rather than a generic adaptation.
Fitment for the Mercedes Benz CL 550 W216 (2006-2013)
This kit is built for the rear axle of the Mercedes Benz CL 550 on the W216 chassis, covering the 2006 to 2013 production span. It is a rear-position application only and is designed to suit the W216 CL 550 specifically. Confirm your chassis code and model year against the listing before you order.
What buyers also search for
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- W216 coupe rear brake upgrade to resist fade on long descents
Choose your pad compound, disc style and caliper colour from the options above to build your CL 550 W216 rear kit.
What’s in the kit
Rear axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 380–421 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 8-pot
- 2×High-stiffness mounting brackets
- 2×Braided stainless steel brake lines
- 4×High-performance brake pads (1 set)
- 1×Fitting hardware & tools pack
Parking brake: Retains your original (OE) handbrake.
Choosing your spec
Every kit is built to order around the choices you make above. Here is what each option actually changes, so you can spec yours with confidence.
Brake pads — Street, Sport or Racing
Every kit ships with a full set of high-performance pads; the compound is your call.
Street is the right default for fast-road driving — a strong, progressive cold bite with low noise, low dust and long disc life. Sport raises the working temperature and adds bite and fade resistance for hard road use and the occasional track day, while still behaving on a cold morning. Racing is a track compound built for sustained abuse: huge fade resistance and bite once heat is in it, at the cost of more noise and dust when cold. Match the pad to how hard you actually use the brakes — there is no benefit to a race pad that never gets up to temperature.
Caliper grade — Hollow vs Hollow Racing
Hollow is the standard caliper on every kit: a hollow-body forged caliper, lighter than a solid one, fitted with a dust cover and backed by a 5-year oil-leak warranty. For most fast-road and spirited track use it is all the caliper you need.
Hollow Racing is the track-grade upgrade. It runs the same hollow body but without a dust cover (so there is nothing to melt at sustained high temperature), uses a twin-metal piston that isolates heat travelling from the disc to the oil seal, and is rated to 1000°C. Available 330–356mm (rear). Warranty is 2 years on oil leaks and 10 years on appearance. Built for professional racing and repeated track days.

Caliper colour & finish
Painted colours (Red, Yellow, Gold, Black, Anodized Black) are included at no cost. Want an exact match to your car? Custom Color (+£150) paints the calipers to any Pantone code you supply (15–20 day lead time).
Polished Forged finishes are the flagship: a forged caliper given a mirror-polished surface treatment that shifts colour with the viewing angle. Beyond the looks, the polished surface dissipates heat better, resists rust and stands up to the weather. Choose Titanium (neochrome, +£350), Polished Gold (+£300) or Polished Silver (+£250). They look their best paired with a titanium centre bell. Care: clean only with a dilute neutral cleaner or water.
Candy colours (+£200) use a deep candy-paint and polishing process for a mirror-reflection, boutique finish — pick Teal, Blue, Red or Orange (shown below right).


Centre bells
The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. The standard anodized centre bell is included. The Two-tone bell (+£200) adds an anodized accent ring — choose Red, Yellow, Orange, Purple or Silver right here at checkout. The Titanium centre bell (+£500) is a forged titanium bell (bolts not included) that finishes off the polished-forged look.

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