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Big Brake Kit

XYZ Racing Hollow Rear Brake Kit — Mercedes Benz CLA 4 (2013-2019)

SKU: XYZ-BRK-BKR-ME-071-D-REAR

  • IncludesRear axle pair (2 discs + 2 calipers)
  • PositionRear
  • Disc Ø356–421 mm
  • Caliper pots6 / 8-pot
  • Lead time10–15 working days

Fits Mercedes Benz CLA 4 (2013-2019)

Brake pad compound

Street: quiet, low-dust, strong cold bite for road driving. Sport: higher temperature range and more bite for fast road and occasional track. Racing: maximum fade resistance for sustained track use (noisier and dustier cold). Match the pad to how hard you actually brake.

Disc size

Caliper grade

Hollow is the standard caliper: a lighter hollow-body forged caliper with a dust cover and a 5-year warranty. Hollow Racing drops the dust cover for sustained high-temperature use (rated to 1000°C, 2-year warranty) — the track-grade choice.

Caliper colour

Painted colours are included. Polished-forged finishes are mirror-polished forged calipers (Titanium, Gold, Silver); candy colours are a deep, mirror-reflection paint. Both are premium upgrades — fuller detail further down the page.

Painted — includedTell us the exact Pantone (PMS) code you want the calipers painted.Polished forgedCandy
Disc style

Drilled discs (cross-drilled holes) vent gas and water and look aggressive; slotted discs (surface grooves) wipe the pad face clean and resist fade under sustained hard use. Same price — choose on looks or how you drive.

Centre bell

The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. Standard anodized is included; a two-tone bell adds an anodized accent ring in your choice of colour; titanium is the lightest, forged option.

Carbon-ceramic rotor

Carbon-ceramic rotors are a special-order track upgrade: far lighter than steel, fade-resistant at extreme temperatures and extremely long-lived. The price follows the disc size you choose above. The standard two-piece steel rotor is included.

Configured price£3,000.00Inc. VAT

Lead time: 10–15 working days from payment


£3,000.00

Made to order. Full payment is taken at checkout. Production begins once payment is confirmed.

Pay by card, Apple Pay, Google Pay — or Klarna on eligible orders.

Caliper render for this kit:

XYZ Racing Hollow Rear Brake Kit — Mercedes Benz CLA 4 (2013-2019) — 356 mm
356 mm

The first-generation Mercedes Benz CLA 4 carries most of its mass over the front axle, which leaves the standard rear brakes lightly loaded and quick to fade once you start stringing corners together. The XYZ Racing Hollow Rear Brake Kit for the 2013-2019 CLA 4 tackles that imbalance directly, adding thermal capacity and bite to an axle the factory under-specced for hard driving.

This is a rear-axle kit for owners who use their CLA 4 on track days and fast B-roads rather than just the commute. Two-piece floating discs trim rotating mass while shedding heat faster, and three pad compounds let you match the rear end to how hard you actually drive.

What this brake kit does for your 2013-2019 Mercedes Benz CLA 4

After fitting, the clearest change to your 2013-2019 Mercedes Benz CLA 4 is a firmer, more progressive rear brake response that holds up when the standard setup has already gone soft. The two-piece floating disc lowers rotating mass at the rear hubs, sharpening turn-in and reducing the gyroscopic drag that blunts steering feel. Stepping up to the Sport or Racing pad compound raises the working temperature window, so repeat heavy stops on a track day stop pushing the rear pads past their limit. Restoring rear braking authority also lets the front axle work less hard, trimming nose-dive under braking. Painted caliper colours, from understated Black through Red, Yellow, Gold or Anodized Black, suit a sleeper build or a show car equally, with a Custom Color in any Pantone available too.

About the Hollow Rear Brake Kit

This is XYZ Racing’s rear-axle upgrade for drivers who have outgrown the standard discs. Its defining feature is the two-piece floating disc, whose friction ring rides on an alloy bell so it can grow with heat without warping, cutting weight and improving dissipation while keeping the swept area needed for consistent stopping power. The hollow-body forged caliper is standard, lightened internally without losing stiffness. It comes with a choice of three pad compounds: Street for quiet road use, Sport for harder fast-road driving and occasional track, and Racing for sustained track work. 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, so the visual side matches the rest of the build. Because this is a position-specific rear kit, it is designed to pair with a matching front setup or to rebalance a car whose front brakes are already sorted.

Fitment for the Mercedes Benz CLA 4 (2013-2019)

This kit is cut specifically for the first-generation Mercedes Benz CLA 4 (C117) built between 2013 and 2019, and fits the rear axle only. If you are chasing a full-car balance change, confirm your front brake setup before ordering. Match the kit to your exact model year within the 2013-2019 window when you order.

What buyers also search for

  • Mercedes Benz CLA 4 rear brake upgrade for track days and fast-road use
  • CLA 4 two-piece floating disc kit that resists fade under repeat heavy braking
  • Rear big brake kit options for the 2013-2019 CLA 4 with Sport and Racing pads
  • Mercedes CLA 4 caliper colour choices for a custom brake build

Choose your pad compound, disc style and caliper colour from the options above to build your CLA 4 rear brake kit.

What’s in the kit

Rear axle kit — supplied as a complete bolt-on assembly.

  • 2×Two-piece floating discs — 356–421 mm: you pick the exact diameter with the "Disc size" option
  • 2×Lightweight aluminium centre bells
  • 2×Forged aluminium calipers — 6 / 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: Electronic parking brake (EPB) compatible.

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.

Hollow Racing caliper

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).

Polished forged caliper finishes
Candy caliper colours

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.

Two-tone anodized centre bells
Same car

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Front & rear brake kits, coilovers and more for this car