Skip to content
Big Brake Kit

XYZ Racing Hollow Rear Brake Kit — Bmw 5 SERIES E 60 525 (2003-2010)

SKU: XYZ-BRK-BKR-BM-016-REAR

  • IncludesRear axle pair (2 discs + 2 calipers)
  • PositionRear
  • Disc Ø330–421 mm
  • Caliper pots6 / 8-pot
  • Lead time10–15 working days

Fits Bmw 5 SERIES E 60 525 (2003-2010)

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£2,200.00Inc. VAT

Lead time: 10–15 working days from payment


£2,200.00

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 — Bmw 5 SERIES E 60 525 (2003-2010) — 330 mm
330 mm

The E60 525 carries its mass the way an executive saloon does: comfortably over 1.5 tonnes, rear-driven, riding on a multilink rear axle that was tuned for refinement before bite. The standard rear brakes reflect that brief, and they are the first thing to wilt when the car is asked to stop hard more than once. This XYZ Racing Hollow Rear Brake Kit for the BMW 5 Series E60 525 (2003-2010) targets the back axle specifically, where the factory setup runs short of authority long before the front does.

Fitted to a 525 used on fast road or the occasional circuit day, the kit restores rear braking confidence and rebalances how the car sheds speed. The two-piece floating discs trim mass at each rear corner, and three pad compounds let you match friction to how the car is actually driven rather than settling for one factory compromise.

What this brake kit does for your 2003-2010 BMW 5 Series E60 525

You feel the difference first in pedal consistency. A heavy E60 loads its brakes hard under repeated high-speed stops, and the standard rear discs heat-soak; this kit gives the rear axle more thermal headroom so the pedal stays firm deeper into a session. The three pad compounds let you tune that bite: Street is the quiet, low-dust daily compound, Sport adds bite and a wider heat range for fast road and occasional track use, and Racing is the dedicated track compound for sustained temperatures where the rear climbs fastest. Adding braking authority at the rear also settles the 525 under trail braking, easing the nose-led, front-heavy stops the car defaults to. Braided lines keep the pedal firm, and the included painted caliper finishes – Red, Yellow, Gold, Black and Anodized Black – let the hardware suit the car it sits behind.

About the Hollow brake kit

XYZ Racing’s rear brake kit is built around two-piece floating discs: a vented cast-iron friction ring mounted to an alloy centre bell, which sheds rotating and unsprung mass at each rear corner while keeping the swept area the disc needs to manage heat. Less rotating mass at the wheel means less inertia for the rear axle to fight under acceleration and braking, which sharpens response and reduces the load passed back through the suspension. The rotors pair with XYZ’s calipers – hollow-cast bodies as standard, with a Hollow Racing upgrade available for serious track use, dropping the dust cover for a 1000C rating and a two-year warranty. Three pad compounds cover road, fast-road and track: Street suits an E60 driven mostly on the road, Sport adds bite and fade resistance for harder use, and Racing is built for repeated high-temperature stops. Discs come drilled or slotted at the same price, and centre bells can be upgraded to two-tone anodized in five colours or to titanium. Custom Color in any Pantone is £150, with premium polished-forged Titanium, Polished Gold and Polished Silver and candy Teal, Blue, Red and Orange also offered. Because this is a rear-specific kit, it is designed to complement the front brakes of the 5 Series E60 525 rather than overpower them, keeping front-to-rear balance sensible.

Fitment for the BMW 5 Series E60 525 (2003-2010)

This kit is sized for the rear axle of the BMW 5 Series E60 525 and covers the 2003 to 2010 run of that chassis. It fits the 525 specifically within the wider E60 range, so confirm your car is the 525 variant on the E60 platform before ordering. Caliper colour, disc style and pad compound are all selected when you order.

What buyers also search for

  • BMW 5 Series E60 525 rear brake upgrade for fast-road and track-day use
  • E60 525 rear big brake kit with two-piece floating discs
  • BMW E60 525 rear brake pads in Street, Sport and Racing compounds
  • 5 Series E60 525 caliper colour options including Red, Gold and Anodized Black
  • Rear braking balance fix for the heavy E60 5 Series saloon

Choose your pad compound, disc style and caliper finish above, then build your exact rear brake kit when you order.

What’s in the kit

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

  • Two-piece floating discs — 330–421 mm: you pick the exact diameter with the "Disc size" option
  • Lightweight aluminium centre bells
  • Forged aluminium calipers — 6 / 8-pot
  • High-stiffness mounting brackets
  • Braided stainless steel brake lines
  • High-performance brake pads (1 set)
  • Fitting hardware & tools pack

Parking brake: Retains your original (OE) handbrake.

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