XYZ Racing Hollow Rear Brake Kit — Bmw X1 E84 (OE185) (2009-2015)

The X1 E84 carries E90 3-Series mechanicals under a taller, heavier crossover body, which puts more mass and a higher centre of gravity over the rear axle than the saloon ever had to manage. The XYZ Racing Hollow Rear Brake Kit for the Bmw X1 E84 addresses the part of the car most owners overlook: rear-axle braking that has to work harder on a 1.5-tonne crossover than the original equipment setup was ever specified to handle.

This is the rear half of a serious brake upgrade. The hollow-vane disc cuts rotating and unsprung mass at the back axle, while the pad compound choice lets you match the kit to how the car is actually used, from daily road miles to sustained track or long hill-descent work.

What this big brake kit does for your 2009-2015 Bmw X1 E84

Fit the rear kit and the first thing you feel on the road is a firmer, more consistent pedal once the brakes are warm. The hollow-vane discs shed heat and weight, so the rear axle recovers faster between hard stops and the back of the car stays settled under trail-braking rather than going light, while the two-piece floating build keeps each disc true as temperatures climb. Three pad compounds, Street, Sport and Racing, mean you can spec the X1 for quiet, low-dust daily reliability, a wider heat range for fast-road use, or the repeat heavy braking of a track session or an alpine descent. Less rotating mass at each rear hub also lifts a small load off the rear suspension, sharpening how quickly the axle responds. On a tall crossover that naturally throws weight forward under braking, a rear setup that resists fade keeps the car balanced instead of pitching onto its nose.

About the Hollow Rear Brake Kit

The Hollow Rear Brake Kit is built around a hollow-vane two-piece disc designed to lose heat and weight without giving up the thermal mass a heavy car needs to stop repeatedly. The kit pairs a matched left-and-right pair of those discs with a matched caliper, braided lines and a pad package, so the components are designed to work as a set rather than mixed from a parts bin. Pad material is a build-time choice across Street, Sport and Racing compounds, letting the same hardware suit a road car or a track tool. The caliper is a hollow-body unit as standard, with an optional Hollow Racing version rated to 1000C and a two-year warranty for harder 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 rear kit can match the front or sit discreetly behind the wheels. Discs come drilled or slotted at the same price, and two-tone anodized or titanium centre bells are selectable. As a rear-axle kit it concentrates on stability and fade resistance at the back of the car, complementing a front upgrade rather than standing in for one.

Fitment for the Bmw X1 E84 (2009-2015)

This kit is cut for the Bmw X1 E84 built between 2009 and 2015, the first-generation X1 on BMW’s rear-drive compact platform. It is the rear-axle fitment, referenced to the OE185 specification for this chassis. Confirm your build year falls inside the 2009 to 2015 span before ordering, and note this is the rear kit, so pair it with the matching front for a complete upgrade.

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Choose your pad compound and caliper colour for the X1 E84 rear kit using the options above to build yours.