Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Opel KADETT (1984-1991)
SKU: XYZ-BRK-BKF-OP-005-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø286–444 mm
- Caliper pots4 / 6 / 8 / 12-pot
- Lead time10–15 working days
Fits Opel KADETT (1984-1991)
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Caliper render for this kit:
The Kadett E’s front-wheel-drive layout pushes the majority of braking force through its leading axle, a configuration adequately served by the stock hardware when these cars were new but one that shows its limits under repeated hard stops four decades later. For anyone using a Kadett E on hillclimbs, sprint events or track days, the front braking hardware is typically the first system that needs addressing before the chassis can be pushed further.
XYZ Racing’s front big brake kit for the Opel KADETT (1984-1991) is a single front-axle upgrade, a matched pair of larger discs and forged calipers for the left and right corners. Three pad compounds cover daily-driven road use through to competitive motorsport without swapping between kits.
What this brake kit does for your 1984-1991 Opel KADETT
A big-brake conversion extends the disc diameter beyond OEM dimensions, increasing swept area and raising the thermal threshold before fade becomes a factor under sustained heavy braking. The two-piece floating disc construction lets the friction ring move on its alloy centre bell as it heats, keeping the rotor flat and shedding rotating and unsprung mass at the same time, which an old Kadett E’s suspension geometry rewards with sharper response.
Street compound is the natural starting point for a Kadett E that sees regular road use, with quiet, low-dust, progressive feel from cold that matters on a car where 35-plus-year-old geometry means predictability is earned, not assumed. Sport widens the heat range and adds bite for fast-road driving with the odd track day. Step up to Racing and the bite sharpens further as temperature builds, rewarding the disciplined trail-braking the Kadett E’s FWD platform responds well to. Braided stainless lines are included, firming the pedal that the larger discs already deliver.
About the Hollow Front Brake Kit
This is XYZ Racing’s front big-brake series, a complete front disc and caliper upgrade for classic and performance applications. The disc uses a hollow-vane internal geometry to draw airflow through the rotor and pull heat out of the braking zone, and the caliper is a hollow-body forged unit as standard. An optional Hollow Racing caliper removes the dust cover, carries a 1000C rating and a two-year warranty for owners running serious competition heat.
Pad compound is chosen at the point of order rather than sourced separately after delivery. Painted caliper colours are included at no extra cost in Red, Yellow, Gold, Black and Anodized Black. A Custom Color in any Pantone shade is available for £150, with premium polished-forged finishes in Titanium, Polished Gold and Polished Silver and candy finishes in Teal, Blue, Red and Orange for builds that need to match a specific livery. Discs come drilled or slotted at the same price, with a two-tone centre bell in five anodized colours or titanium selectable at checkout. The kit is a front-axle fitment, pairing with the car’s existing rear hardware rather than demanding a full overhaul.
Fitment for the Opel KADETT (1984-1991)
This kit covers the Opel KADETT across the full E-series production run from 1984 to 1991, encompassing all body styles: three-door hatchback, five-door hatchback, saloon, estate and cabriolet. If the car has previously had any brake conversion work carried out, confirm front caliper mounting specifications before ordering, as aftermarket caliper brackets can alter the fitment envelope from standard.
What buyers also search for
- Opel Kadett E front brake upgrade for track days, hillclimbs and sprint events
- Kadett E big brake kit with Sport and Racing compound pad options for road and competition
- Opel KADETT 1984-1991 front caliper and disc upgrade beyond factory specification
- Kadett GSi braking improvement for FWD trail-braking and repeated hard stops
One of the more immediate gains available to a Kadett E that is being driven with intent. Configure 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 — 286–444 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 4 / 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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More XYZ products for the Opel KADETT appear here as the rest of the range publishes.