
XYZ Racing Hollow Rear Brake Kit — Audi A1 1.4 TFSI (8X) (2010-2018)
SKU: XYZ-BRK-BKR-AU-001-B-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø380–421 mm
- Caliper pots8-pot
- Lead time10–15 working days
Fits Audi A1 1.4 TFSI (8X) (2010-2018)
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Caliper render for this kit:

The 8X A1 carries its weight over the front axle and brakes accordingly. Like most front-drive superminis on the PQ25 platform, the rear discs on the 1.4 TFSI are small, lightly worked, and the first thing to wilt once you start stringing corners together on a circuit. The XYZ Racing Hollow Rear Brake Kit gives that under-used rear axle a proper job to do.
This is the rear half of a balanced brake upgrade for the Audi A1 1.4 TFSI (8X), a matched pair of left and right rear calipers and two-piece floating discs built to match a front kit rather than work alone. Larger hollow-vane rear discs and an uprated caliper restore bias to a car that, left standard, throws almost all of its braking effort forward.
What this brake kit does for your 2010-2018 Audi A1 1.4 TFSI (8X)
On the road you will feel a firmer, more confident pedal and a rear axle that helps slow the car instead of trailing along behind it. On track the gains are sharper: the hollow-vane disc core sheds rotating mass, so the rear brakes ride out the repeated heavy stops that cook a standard A1’s back end. Better rear braking also helps the nose-heavy A1 rotate on turn-in, because the rear is finally pulling its weight under load.
Pad compound matches the kit to use. Street keeps daily manners and cold-brake feel intact. Sport adds bite and heat range for spirited road plus the odd track day. Racing holds a steady bite through a full session. The included caliper finishes are Red, Yellow, Gold, Black or Anodized Black, with any Pantone available as a Custom Color.
About the Hollow rear brake kit
XYZ Racing’s Hollow line is built around two-piece floating discs with a hollow-vane core that trims rotating and unsprung mass without surrendering swept area. Less mass at the wheel means the brakes heat and shed temperature more evenly, and the suspension has less inertia to control over kerbs and broken tarmac. The rear kit pairs these discs with an uprated caliper and a choice of three pad compounds – Street for stock-feel daily use, Sport for spirited road and the odd track day, and Racing for sustained track work.
Disc face is drilled or slotted at the same price, and centre bell upgrades, two-tone anodizing in five colours or titanium, are selectable when you order. The caliper is hollow-body as standard, finished in the included colours plus premium polished-forged Titanium, Polished Gold and Polished Silver or candy Teal, Blue, Red and Orange. A Hollow Racing caliper, with no dust cover, a 1000C rating and a two-year warranty, is there for serious track use. It is designed as the rear complement to a front big brake upgrade, returning front-to-rear balance to a platform that leaves the factory heavily biased forward.
Fitment for the Audi A1 (2010-2018)
This kit is cut for the 8X-generation Audi A1 in 1.4 TFSI form, covering the 2010 to 2018 model years, and fits the rear axle specifically. Confirm your engine variant and build year against the 8X 1.4 TFSI listing before configuring, as fitment is tied to this exact chassis and drivetrain.
What buyers also search for
- Audi A1 1.4 TFSI rear brake upgrade for track days and fast-road driving
- Audi A1 8X big brake kit caliper finishes in red, yellow, gold or any Pantone
- Audi A1 rear disc upgrade with Street, Sport and Racing pad compounds
- A1 1.4 TFSI rear brake kit to balance a front big brake setup on a front-heavy chassis
Choose your disc style, pad compound and caliper finish, then configure your A1 rear kit when you order.
What’s in the kit
Rear axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 380–421 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 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: OE handbrake not retained — a hydraulic handbrake is required.
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.

Other products that fit this vehicle
Front & rear brake kits, coilovers and more for this car
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More XYZ products for the Audi A1 1.4 TFSI (8X) appear here as the rest of the range publishes.