XYZ Racing Hollow Rear Brake Kit — Ferrari PORTOFINO (2017-2026)

The Portofino carries real mass over its rear axle. The folding hardtop and its mechanism live behind the cabin, and on a near-1.8-tonne front-engined GT that weight has to be hauled down again and again on a quick cross-country run or a few warm laps. The rear brakes do quieter work than the fronts, but on a car this heavy and this fast they are the first to go vague when the heat builds.

The XYZ Racing Hollow Rear Brake Kit for the Ferrari Portofino targets exactly that. It is a rear-axle upgrade, a matched pair of rear calipers and discs built to keep pedal feel consistent when a long descent or repeated heavy stops start cooking the standard setup, so the back of the car stays composed under trail-braking instead of squirming as the rears fade.

What this brake kit does for your 2017-2026 Ferrari Portofino

On the road you get a firmer, more progressive pedal and rear brakes that recover faster between hard applications, which matters on a GT you actually drive far rather than trailer. The hollow-vane disc design trims rotating and unsprung mass at the rear, sharpening how quickly the car settles after a stop and easing the load the dampers have to manage. With three pad compounds available, you can match the rear bias to how you use the Portofino, from relaxed touring to harder track days where heat is the enemy: Street for everyday GT use, Sport for spirited driving, and Racing for circuit work. The result is a back axle that stays predictable under load, giving you the confidence to brake later into a corner without the rear stepping out of line.

About the Hollow rear brake kit

This is a rear-specific kit, engineered to complement the Portofino’s existing front braking rather than overwhelm it. The hollow-vane construction is a defining feature: lightening the disc reduces rotating mass and helps the rear shed heat, which is the main reason factory rear brakes lose bite on a heavy GT. The disc is a two-piece floating design, offered drilled or slotted at the same price and fed by braided lines, clamped by a caliper that is hollow-body as standard; the optional Hollow Racing upgrade (no dust cover, rated to 1000C, two-year warranty) is there for owners who put the car on circuit. Pad choice is part of the spec, not an afterthought: Street suits everyday GT use, Sport steps up bite and heat tolerance for spirited driving, and the Racing compound is there for track days. Painted caliper finishes are yours to set, with Red, Yellow, Gold, Black and Anodized Black at no extra cost, any Pantone shade as a Custom Color for a small upcharge, premium polished-forged finishes (Titanium, Polished Gold, Polished Silver), candy finishes (Candy Teal, Candy Blue, Candy Red, Candy Orange), and two-tone centre bells in five anodized colours or titanium, so the kit reads as deliberate behind the wheels rather than a generic replacement. It is a focused hardware change aimed at consistent rear-end behaviour under repeated heavy braking.

Fitment for the Ferrari Portofino (2017-2026)

This kit is built for the Ferrari Portofino across the full 2017-2026 production span, fitting the rear axle of the front-engined, rear-drive GT. Pad compound and caliper finish are chosen at checkout. Only the rear position is covered here, so pair it with the matching front kit if you want a balanced upgrade across both axles.

What buyers also search for

• Ferrari Portofino rear big brake kit for fast-road and touring use
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• Hollow rear discs to cut rotating mass on the Portofino’s heavy rear axle
• Ferrari Portofino rear brake pad compound options for road or track
• Coloured caliper choices for the Ferrari Portofino rear brake kit

Set your pad compound and caliper finish from the options above and your Portofino rear kit is built to your spec.