XYZ Racing Hollow Rear Brake Kit — Bmw X4 G02 (2018-2026)

The X4 G02 hides a near-1.9-tonne kerb weight under that coupe-SUV roofline, and on the CLAR platform the rear axle carries more of the stopping work than the tall, nose-led stance suggests, especially on the xDrive variants that make up most of the range. Standard rear discs on a heavy SAV coupe heat-soak quickly once you string a few hard stops together, and the pedal goes long. This XYZ Racing Hollow Rear Brake Kit puts proper thermal headroom back where the G02 needs it, as a matched pair of rear calipers and two-piece floating discs.

The hollow-vane disc exists to move heat. A cored rotor sheds temperature faster than a solid casting of the same face area, which is exactly what a two-tonne-with-passengers crossover wants under repeat braking. Three pad compounds, Street, Sport and Racing, let you set the rear axle up for a daily X4 M40i commute or for harder use, without changing the hardware.

What this brake kit does for your 2018-2026 Bmw X4 G02

After fitting, the first thing you feel is a rear axle that stops fading. The vented hollow-vane rotors keep disc temperatures in a workable band, so the pedal stays firm down a long descent or across a run of motorway-speed stops rather than sinking towards the floor. The lighter two-piece discs also trim rotating and unsprung mass at the rear, which lets the dampers settle the axle more quickly over broken surfaces. Matching the rear pad compound to the front avoids the lazy, push-on-understeer feeling a mismatched G02 gives under trail braking, because front and rear are working together rather than fighting each other. And because the calipers are painted in your choice of Red, Yellow, Gold, Black or Anodized Black at no extra cost, the kit reads as deliberate behind the X4’s larger wheels rather than an afterthought.

About the Hollow Rear Brake Kit

The Hollow Rear Brake Kit is a rear-axle upgrade built around a two-piece floating disc with an internally cored, hollow-vane braking ring. The internal voids cut weight and accelerate heat rejection compared with a conventional solid rotor, and the floating bell lets the ring expand under heat without distorting. The caliper body is hollow-cast as standard to keep weight down; for serious track use you can specify the Hollow Racing upgrade, which drops the dust cover, is rated to 1000C and carries a two-year warranty. Pad choice runs across three compounds: Street is the quiet, low-dust road default, Sport adds bite and heat range for fast road and the occasional track day, and Racing is a full track compound. Discs come drilled or slotted at the same price, braided lines are included for a firmer pedal, and centre-bell upgrades are available in five anodized two-tone colours or titanium. Everything is sized for the rear of the X4 G02 specifically, so the disc and caliper geometry suits the factory rear hub and the loads that heavy body puts through it.

Fitment for the Bmw X4 G02 (2018-2026)

This kit fits the BMW X4 G02 across the full 2018-2026 model run and mounts to the rear axle as a left-and-right pair. It is the rear-specific kit, so add the matching front kit if you are upgrading both ends of the car. Confirm your exact variant against the options above before ordering.

What buyers also search for

• BMW X4 G02 rear big brake kit for road and occasional track use
• X4 G02 hollow-vane disc upgrade to cut rear brake fade on long descents
• BMW X4 rear brake kit with Racing, Sport or Street pad compounds
• G02 caliper colour options in Red, Yellow, Gold, Black, Anodized Black or custom Pantone

Pick your pad compound and caliper colour and build your X4 G02 rear kit when you order.