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Big Brake Kit

XYZ Racing Hollow Rear Brake Kit — Ford FOCUS ST MK4 (Rr Multi-Link Suspension)(TYPE I) (2019-2026)

SKU: XYZ-BRK-BKR-FO-10-A-REAR

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

Fits Ford FOCUS ST MK4 (Rr Multi-Link Suspension)(TYPE I) (2019-2026)

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 — Ford FOCUS ST MK4 (Rr Multi-Link Suspension)(TYPE I) (2019-2026) — 356 mm
356 mm

Lift off mid-corner in a MK4 Focus ST and the back axle does real work. This generation’s independent multi-link rear, the layout that sets the ST apart from the twist-beam Focus models below it in the range, is what makes that rotation usable in the first place. The XYZ Racing rear big brake kit for the Ford Focus ST MK4 is built to support it, swapping the rear discs and calipers for a lighter, two-piece floating package.

For a front-driven hatch that loads its nose hard under braking, brake balance is what keeps the car settled as weight pitches forward. With three pad compounds on offer and a hollow-vane disc design that trims mass at the rear, this kit gives the ST’s back axle the bite it needs to help the car turn in rather than wash wide.

What this brake kit does for your 2019-2026 Ford Focus ST MK4

Fit it and the first thing you feel is a firmer, more predictable rear pedal as you brake deep into a corner. The hollow-vane rotor design takes weight off each rear hub, and that is mass the multi-link suspension no longer has to control, so the back axle reacts more cleanly over kerbs and mid-corner bumps. Step up to the Racing compound and the rear holds its bite through repeated heavy stops on a track day, where road pads on a hard-driven ST tend to fade and glaze. On the road, the Street compound delivers quiet, low-dust braking, while Sport bridges the two for fast-road duty with the occasional track session. The net result is a Focus ST that brakes squarer and rotates more willingly instead of running on to its front tyres.

About the Rear Brake Kit

The XYZ Racing rear brake kit is a direct rear-axle upgrade for the MK4 Focus ST, supplied as a matched pair of fixed calipers and two-piece floating discs for the back of the car. That hollow-vane construction is the engineering point: removing material from the disc cuts rotating and unsprung weight while keeping the thermal mass where it counts, so the brake sheds heat and asks less of the suspension at the same time. Three pad compounds let you spec the kit to how the car is used: Street for quiet everyday driving, Sport for fast-road duty, and Racing for sustained circuit work. Discs come drilled or slotted at the same price, and the hollow-body caliper is standard with an optional Hollow Racing upgrade for serious track use that drops the dust cover, is rated to 1000C and carries a two-year warranty. Included painted finishes are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a custom Pantone option at £150, plus premium polished-forged Titanium, Polished Gold and Polished Silver and candy Teal, Blue, Red and Orange. The package is sized as a rear-specific kit, matched to the load the ST’s back axle actually carries.

Fitment for the Ford Focus ST MK4 (2019-2026)

This rear kit is specified for the MK4 Ford Focus ST built from 2019 to 2026, running the independent multi-link rear suspension (Type I). It is a rear-axle kit supplied as a pair, so it sits alongside your existing or upgraded front setup. Confirm your car uses the multi-link rear layout before ordering, as that is the deciding fitment detail on this generation.

What buyers also search for

  • Ford Focus ST MK4 rear brake upgrade for road and track use
  • Hollow-vane two-piece rear discs for the multi-link Focus ST
  • Focus ST MK4 rear brake kit with Street, Sport and Racing pad options
  • Coloured brake calipers for the 2019-2026 Focus ST in Red, Yellow, Gold, Black or Anodized Black
  • Rear big brake kit that sharpens braking balance on the front-driven Focus ST

Set your pad compound and caliper colour using the options above when you order.

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

Other products that fit this vehicle

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

  • More XYZ products for the Ford FOCUS ST MK4 (Rr Multi-Link Suspension)(TYPE I) appear here as the rest of the range publishes.