Big Brake Kit
XYZ Racing Hollow Rear Brake Kit — Mini COOPER S 5D (F55) (2014-2026)
SKU: XYZ-BRK-BKR-BM-59-E-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø380–421 mm
- Caliper pots8-pot
- Lead time10–15 working days
Fits Mini COOPER S 5D (F55) (2014-2026)
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Caliper render for this kit:
The F55’s nose-heavy, front-drive layout throws its weight forward the moment you lean on the brakes, and the rear axle ends up doing quieter, often-overlooked work: holding the back of the car settled while the fronts shoulder the load. On the heavier five-door bodyshell that balance matters more than owners expect, and a tired rear setup is the first thing to feel vague when you start braking later into a corner.
This XYZ Racing rear big brake kit for the Mini Cooper S 5D (F55) addresses exactly that. As a single-axle kit, it fits a matched pair of rear calipers and two-piece floating discs, giving the back of the car more thermal headroom and a firmer, more predictable bite so it stays composed through repeat stops rather than fading into the ABS threshold halfway through a session.
What this big brake kit does for your 2014-2026 Mini Cooper S 5D (F55)
On the road you will notice a cleaner, more linear pedal and a rear end that feels planted under trail braking instead of skittish. The hollow-vane disc moves heat out of the rotor quickly, and the lighter two-piece design trims unsprung and rotating mass from the rear corners, which helps the wheels stay in contact over broken UK tarmac. Pad compound choice lets you match the car to how you drive it: the Street compound is the quiet, low-dust road default, Sport adds bite and heat range for fast road with the occasional track day, and Racing is the full circuit compound for when the rear discs are genuinely working hard. The result is braking balance you can lean on, and a rear axle that no longer runs out of ideas before the fronts do.
About the Hollow Rear Brake Kit
The kit pairs a hollow-body caliper as standard with a weight-reduced two-piece floating disc engineered to shed heat faster than the standard Mini rear setup. Lighter rotating mass at the rear improves how quickly the wheel responds and reduces the load the suspension has to manage. Three pad compounds are offered, Street, Sport and Racing, so the kit can be specified for a fast-road Cooper S or a car that sees regular circuit use. Included caliper colours at no extra cost are Red, Yellow, Gold, Black and Anodized Black; a Custom Color in any Pantone is available for a small upcharge, and there are premium polished-forged finishes in Titanium, Polished Gold and Polished Silver, plus candy finishes in Teal, Blue, Red and Orange. Discs come drilled or slotted at the same price, with two-tone anodized or titanium centre bells selectable when you order. For dedicated track use, an optional Hollow Racing upgrade drops the dust cover, is rated to 1000C and carries a two-year warranty. Everything is built to suit the rear axle geometry of the F55 specifically.
Fitment for the Mini Cooper S 5D (F55) (2014-2026)
This rear big brake kit is matched to the Mini Cooper S 5-door, chassis code F55, across the 2014 to 2026 model run. It is designed for the rear axle only and pairs naturally with a front upgrade for full-car balance. Confirm your exact build year and trim using the options above before ordering.
What buyers also search for
- Mini Cooper S F55 rear big brake kit for fast road and track use
- F55 five-door rear brake upgrade with Racing pad compound options
- Mini Cooper S rear caliper kit in Red, Yellow, Gold, Black or Anodized Black
- Lightweight hollow-vane rear discs for the 2014-2026 Mini Cooper S 5D
- Rear brake balance upgrade for a nose-heavy front-drive Mini
Choose your pad compound and caliper colour above and build your spec when you order.
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: OE handbrake not retained — a hydraulic handbrake is required.
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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