Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Bmw 5 SERIES E 60 525 (2003-2010)
SKU: XYZ-BRK-BKF-BM-028-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 5 SERIES E 60 525 (2003-2010)
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Caliper render for this kit:
The 525 sits at the lighter end of the E60 brake specification range. BMW sized its front stopping hardware for the executive brief, while the 530i and 535i in the same E60 family received progressively heftier disc and caliper assemblies. For a car that exceeds 1,500 kg and rewards a driver who uses the rear-drive chassis with intent, the gap between factory front brake capacity and braking demand becomes noticeable the moment pace rises above the routine.
This XYZ Racing Hollow front big brake kit is a direct upgrade for the E60 525 front axle: a single-axle kit, a left and right pair of calipers on two-piece floating discs, available in three pad compounds, Street, Sport, and Racing, so the same hardware can serve a 525 that works as daily transport through the week and a committed fast-road or occasional circuit car at the weekend. Set yours at the configurator above.
What this brake kit does for your 2003-2010 Bmw 5 SERIES E 60 525
The immediate benefit after fitting is improved thermal headroom. The standard front hardware on the 525 begins to work hard under repeated heavy applications. Trail-braking into a sequence of bends on a B-road, or loading the front axle on a long down-gradient, will eventually introduce fade into the pedal feel. The larger two-piece floating disc and uprated caliper assembly shifts that threshold meaningfully upward, while the lighter floating construction cuts unsprung and rotating mass and lets the friction ring expand without coning.
Three pad compounds match the front friction window to how the car is actually driven. Street is the quiet, low-dust default for a 525 used primarily as road transport. Sport works for the owner who drives quickly but mostly on open roads, with more bite and a wider heat range. Racing puts maximum bite at the front and is the right choice for circuit sessions where repeated high-temperature stops are expected. Caliper colour choices, from the included no-cost painted finishes through to premium polished and candy options, let the visual finish align with the car’s wider specification.
About the Hollow Front Brake Kit
XYZ Racing’s Hollow series pairs a hollow-bodied caliper, fitted as standard, with a hollow-vane two-piece floating disc, where the internal vane geometry accelerates airflow through the disc mass during rotation, drawing heat away from the friction surface at a greater rate than a conventional vented or solid casting allows. The result is a disc that manages sustained braking loads more effectively and maintains a more consistent friction window across a wider operating temperature range. The kit is a complete front brake assembly, disc, caliper, and pad compound of choice, designed to replace the standard E60 front brake hardware without modification to the hub carrier or wheel bearing assembly. For hard track use the optional Hollow Racing caliper deletes the dust cover, is rated to 1000C, and carries a two-year warranty. Disc style is drilled or slotted at the same price, centre bells upgrade to two-tone anodized in five colours or to titanium at checkout, and caliper colour options are specified at order from the included Red, Yellow, Gold, Black, and Anodized Black, a Custom Color in any Pantone, premium polished Titanium, Polished Gold, and Polished Silver, and candy Teal, Blue, Red, and Orange. The kit covers the front axle only.
Fitment for the Bmw 5 SERIES E 60 525 (2003-2010)
This front big brake kit covers the BMW 5 Series E60 platform in 525 specification, the naturally aspirated 525i petrol variant and the 525d diesel, across the full production run from 2003 to 2010, including both pre-facelift and LCI models from 2007 onwards. Confirm the build is a standard 525 rather than a 528i or 530i, as front brake fitment differs by model within the E60 range. M5 (E60 V10) applications use a different brake specification entirely and are not covered here. Reference SKU: XYZ-BRK-BKF-BM-028-FRONT.
What buyers also search for
- BMW E60 525 front brake upgrade for improved fade resistance under hard fast-road use
- E60 5 Series big brake kit with coloured calipers for road and circuit sessions
- BMW 525i E60 brake disc and caliper upgrade 2003-2010 covering pre-facelift and LCI variants
- XYZ Racing front brake kit for BMW E60 525d and 525i, full E60 production run covered
Set your pad compound, caliper colour, and disc style above to complete the specification.
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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