
XYZ Racing Hollow Rear Brake Kit — Bmw 5 SERIES E 34 520 (1988-1996)
SKU: XYZ-BRK-BKR-BM-01-C-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 34 520 (1988-1996)
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Caliper render for this kit:

The E34 520 carries close to one and a half tonnes of refined executive saloon on a factory braking setup biased heavily towards the front axle. The XYZ Racing Hollow Rear Brake Kit for the BMW 5 Series E34 520 addresses the neglected end of that equation, giving the rear axle the clamping force to take its proper share of hauling a long, heavy car down from speed.
Think of this as the rear half of a balance-first upgrade, a pair of left and right rear calipers and matched two-piece floating discs. On a chassis as composed as the E34’s, a stronger and more consistent rear brake keeps the car settled under hard deceleration instead of pitching everything onto its nose, which matters on a saloon that spends its life carrying weight at a cruise.
What this big brake kit does for your 1988-1996 BMW 5 Series E34 520
Fit the rear kit and the first change you feel is balance: the E34 stops flatter, with the back axle contributing rather than trailing behind the fronts. Three pad compounds, Street, Sport and Racing, let you match rear bite to how the car is actually driven, from refined road work to repeated heavy stops on a fast B-road. The two-piece floating discs trim rotating and unsprung mass, so the extra thermal headroom means the pedal stays firmer for longer when the brakes are worked hard, and the consistency pays off most on a heavy six-cylinder saloon that asks a lot of its rear discs. The result is more confidence trail-braking into a corner and a car that feels planted rather than nose-heavy, with cleaner brake balance front and rear under load.
About the rear big brake kit
The XYZ Racing rear brake kit is a bolt-on upgrade designed for the E34 platform rather than a universal part forced to fit, a pair of left and right rear calipers with matched discs. The logic of a big brake kit is simple: more thermal capacity and more mechanical leverage at the rear axle, so the brakes resist fade and recover faster between applications. The two-piece floating discs cut rotating and unsprung mass, and the caliper body is hollow as standard, with a Hollow Racing upgrade for serious track use, no dust cover, rated to 1000C and carrying a two-year warranty. Pad compound is configurable across Street, Sport and Racing specifications, letting the same hardware suit a comfortable road saloon or a harder-used car. The included painted caliper finishes are Red, Yellow, Gold, Black and Anodized Black at no cost, with a Custom Color in any Pantone available, so the kit can sit discreetly behind the wheels or stand out. Discs come drilled or slotted at the same price, with centre-bell upgrades selectable at checkout. It is a rear-specific kit, intended to pair with a matched front setup or to correct the back end that has always been the weaker half of the E34’s braking.
Fitment for the BMW 5 Series E34 520 (1988-1996)
This kit is specified for the rear axle of the BMW 5 Series E34 520, covering the 1988 to 1996 production run. It is a rear-position fitment for the E34 chassis; confirm your exact build year against the range above before ordering.
What buyers also search for
- BMW 5 Series E34 520 rear brake upgrade for a heavy executive saloon
- E34 big brake kit with Street, Sport and Racing pad compound options
- BMW E34 520 rear caliper colour choices including red, black and gold
- Rear brake balance fix for the 1988-1996 BMW 5 Series
Choose your pad compound and caliper colour from the options above to configure your E34 520 rear kit.
What’s in the kit
Rear axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 330–421 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: 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.

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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