XYZ Racing Hollow Rear Brake Kit — Bmw 1 SERIES F21 (OE161) (2011-2019)

The F21 is the rare modern three-door hatch that still sends its drive to the rear wheels, and that layout puts genuine work through the back axle every time you brake into a corner. The XYZ Racing rear brake kit for the BMW 1 Series F21 (OE161) gives that axle a larger, lighter rotor and a forged caliper, so the rear stays settled when the nose dives and weight piles onto the front tyres.

Whether your F21 is a four-cylinder car or one of the straight-six M models, the standard rear setup runs short on thermal headroom once you start braking hard and often. This rear brake kit is the answer for fast-road drivers and track-day regulars who want firmer bite and a pedal that feels the same on the tenth stop as it did on the first.

What this rear brake kit does for your 2011-2019 BMW 1 Series F21

On the road, the first thing you feel is a more progressive, better-supported rear contribution under braking, which steadies the F21 as it transfers weight forward. The two-piece floating rotor trims rotating and unsprung mass at the rear corners, something the 1 Series’ relatively compliant rear axle rewards with sharper turn-in and a keener appetite to rotate under trail braking. Three pad compounds let you match the rear to the job: Street for daily commuting, Sport for spirited road and occasional circuit use, and Racing for sustained heat on track. A wide range of caliper colours, including Red, Yellow, Gold, Black, Anodized Black and a custom Pantone finish, means the upgrade reads through the spokes without looking aftermarket-loud.

About the Rear Brake Kit

The rear brake kit is supplied as a matched pair of left and right rear calipers and discs, built around a two-piece floating, hollow-vane rotor that reduces the spinning mass at each rear wheel and helps the disc shed heat faster between stops. The disc comes drilled or slotted at the same price and runs on braided lines. It pairs that rotor with a stiffer forged caliper that resists the flex and taper-wear that dull a tired factory brake, holding the pad square to the disc for a more linear pedal. The caliper is hollow-body as standard, with an optional Hollow Racing upgrade (no dust cover, 1000C rated, two-year warranty) for hard circuit use. The kit is supplied with a choice of three pad compounds, Street, Sport and Racing, so the rear can be specified for road, mixed use or circuit duty, rather than forcing a single all-or-nothing friction level. Included painted caliper finishes are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone for a small upcharge, plus premium polished-forged (Titanium, Polished Gold, Polished Silver) and candy (Candy Teal, Candy Blue, Candy Red, Candy Orange) finishes, and two-tone centre bells in five anodized colours or titanium at checkout. Together the parts address the F21’s real weakness at the rear axle: consistent braking torque when the discs are hot, not just when they are cold.

Fitment for the BMW 1 Series F21 (OE161) (2011-2019)

This is a rear-axle kit engineered for the F21 (OE161) three-door 1 Series across the 2011 to 2019 production span. Confirm your chassis code and build year against your V5C before ordering, and pair it with a matching front kit if you want balanced thermal capacity at both ends.

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Choose your pad compound and caliper colour, then configure your F21 rear brake kit from the options above.