
XYZ Racing Rear Brake Kit — Bmw IX1 U11 4WD (2022-2026)
SKU: XYZ-BRK-BKR-BM-094-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø356–421 mm
- Caliper pots6 / 8-pot
- Lead time10–15 working days
Fits Bmw IX1 U11 4WD (2022-2026)
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Available in 3 disc sizes — your kit ships in the size that fits your car:



The iX1 U11 carries close to two tonnes before anyone climbs aboard, most of that mass battery slung low in the floor, and its standard regenerative braking does such a thorough job of slowing the car that the friction brakes often sit cold and underused. That is fine until you ask for a hard stop from motorway speed, down a long gradient, or two-up with the boot loaded, the moments when an EV’s weight suddenly becomes the dominant factor. The XYZ Racing Hollow Rear Brake Kit for the BMW IX1 U11 4WD is built to answer exactly that, adding rear-axle stopping power sized to the platform’s mass instead of fading under it.
This is a rear-specific upgrade, set up to balance the front of the car rather than overwhelm it. Pad compound is your call across Street, Sport and Racing options, so the same hardware covers a quiet daily commute or a harder-driven brief without swapping parts.
What this brake kit does for your 2022-2026 BMW IX1 U11 4WD
On the road you notice it first as a firmer, more repeatable pedal. The hollow-vane disc trims rotating and unsprung mass at the rear axle, which helps the brakes shed heat after successive stops rather than glazing and going soft, the failure mode that catches heavy EVs out on a sustained descent, while the two-piece floating build keeps the disc true as it heats. Fit the Racing compound and a late stop into a roundabout, or a string of them, holds bite where the factory rear would already be wilting. Step down to the Sport pad for a wider heat range on fast roads, or the Street pad for cleaner, lower-dust everyday manners. A full range of caliper colours lets the upgrade read through the rear wheels as clearly as it reads through the pedal.
About the Hollow rear brake kit
XYZ Racing builds this as a bolt-on rear brake kit for the U11 platform, pairing a hollow-vane two-piece disc with an uprated caliper to lift thermal capacity over the standard rear setup, and supplying it as a matched left-and-right pair with braided lines and chassis-specific brackets. The hollow-vane construction is the headline: machining mass out of the disc reduces the rotating weight each wheel has to start and stop, and improves how quickly the disc moves heat away under hard or repeated use. Three pad compounds are offered, Street for refined, low-dust daily driving, Sport for a more aggressive fast-road bite and a wider heat range, and Racing for sustained high-temperature work. The caliper is a hollow-body unit as standard, with an optional Hollow Racing version rated to 1000C and a two-year warranty for hard use. Included painted finishes are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone and premium polished-forged and candy options above that, so the kit can be made loud or kept discreet behind the wheel. Discs come drilled or slotted at the same price, and two-tone anodized or titanium centre bells are selectable. It is designed as a rear-axle component to work alongside the front brakes and the car’s regenerative system, not to fight them.
Fitment for the BMW IX1 U11 4WD (2022-2026)
This kit is the rear application for the BMW IX1 U11 4WD produced from 2022 to 2026, matched to the all-wheel-drive version of the U11 chassis. It fits the rear axle specifically and is intended to run with the standard or an uprated front setup. Confirm your build year falls inside the 2022-2026 span before ordering.
What buyers also search for
- BMW IX1 U11 rear brake upgrade for a heavy all-wheel-drive electric SUV
- IX1 U11 4WD big brake kit with Street, Sport and Racing pad options
- BMW IX1 brake kit caliper colours from red and black through to gold or custom
- Rear brake heat management for repeated stops in a near two-tonne EV
- BMW IX1 U11 4WD brake kit that suits daily driving and harder road use alike
Choose your pad compound and caliper colour for the 2022-2026 BMW IX1 U11 4WD using the options above to build yours.
What’s in the kit
Rear axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 356–421 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: Electronic parking brake (EPB) compatible.
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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