Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Bmw X4 F26 (2014-2018)
SKU: XYZ-BRK-BKF-BM-076-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø356–444 mm
- Caliper pots6 / 8 / 12-pot
- Lead time10–15 working days
Fits Bmw X4 F26 (2014-2018)
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Caliper render for this kit:
The F26 X4 occupies a contradictory space: it carries genuine SAV kerb weight yet xDrive all-wheel drive delivers traction confidence that encourages commitment at speeds more typical of a sport saloon. The OE front brake specification was calibrated for the former, not the latter, and owners who use the F26 the way its drivetrain invites them to will find the stock setup wanting under repeated hard stops. The XYZ Racing Hollow front brake kit closes that gap.
It is a single-axle kit, a matched pair of front calipers and two-piece floating front discs for the left and right corners. Three pad compounds, Street, Sport and Racing, let you spec the kit to the heat cycles the car actually generates in your hands. The hollow-vane disc at the core of this kit improves thermal management versus a solid equivalent, which matters more on a heavier platform like the F26 where the front axle carries a disproportionate braking load.
What this brake kit does for your 2014-2018 Bmw X4 F26
Because the F26’s xDrive system delivers grip in almost any condition, the front brakes see harder, more sustained use than comparable rear-drive alternatives, since the car simply permits carry-in speeds a lighter, two-wheel-drive platform would not, and brake balance loads the front axle harder the more speed you scrub. The hollow-vane disc routes air through the rotor body to dissipate heat during that repeated loading, reducing the onset of fade when the brakes are working hardest, and the two-piece floating construction lets it expand without distorting. Dropping rotating and unsprung mass at the front sharpens turn-in. Three compound choices, Street, Sport and Racing, mean the pad specification matches the heat cycle rather than fighting it. Included painted caliper colours are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone available, so the installation reads as deliberate through the wheel spokes rather than as an afterthought.
About the Hollow Front Brake Kit
XYZ Racing’s Hollow front brake kit is a fitment-specific front-axle upgrade engineered to the BMW X4 F26’s mounting geometry. The defining detail is the hollow-vane disc cross-section, which draws airflow through the rotor body to manage operating temperatures during sustained hard braking, paired with a two-piece floating construction that grows cleanly under heat, precisely the load cycle the F26 generates when driven to the limit of its xDrive capability. The caliper body is hollow-cast as standard, with an optional Hollow Racing caliper, no dust cover, a 1000C rating and a two-year warranty, for serious track use. Pad selection covers three tiers: Street for predominantly road use with low dust, Sport for drivers who mix fast roads with occasional performance driving, and Racing for those whose F26 sees full performance driving events where fade resistance is non-negotiable. Included painted caliper finishes are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone for £150 and premium polished-forged Titanium, Polished Gold and Polished Silver plus candy Teal, Blue, Red and Orange. Discs come drilled or slotted at the same price, and centre bells can be two-tone anodized in five colours or titanium. Because the kit is specified for the F26 rather than the closely related X3 F25, fitment is direct without modification to the standard front-axle mounting points.
Fitment for the Bmw X4 F26 (2014-2018)
This kit fits the BMW X4 F26 front axle across the full 2014-2018 production run. The F26 chassis code covers all engine variants sold in that generation, four-cylinder and inline-six petrol and diesel, in the xDrive configuration. Confirm your chassis code matches F26 before ordering; the G02-generation X4 that replaced it in 2018 uses a different front-axle specification.
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Set your pad compound, disc style and caliper colour from the options above when you order.
What’s in the kit
Front axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 356–444 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 6 / 8 / 12-pot
- 2×High-stiffness mounting brackets
- 2×Braided stainless steel brake lines
- 4×High-performance brake pads (1 set)
- 1×Fitting hardware & tools pack
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 286–380mm (front). 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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