XYZ Racing Rear Brake Kit — Mercedes Benz A CLASS W177 A35 4WD (2019-2026)

The W177 A35’s 4MATIC system runs a front-biased torque split, so on the road the rear axle rarely feels stressed. Push the car on a circuit, though, and the back end starts carrying real thermal load: trail-braking a 1.5-tonne AWD hatch into a slow corner asks the rear discs to shed heat they were never sized to handle from the factory. The XYZ Racing Hollow Rear Brake Kit for the Mercedes Benz A Class W177 A35 4WD is built to give that axle the headroom it lacks.

This is a rear-axle upgrade, a pair of left and right rear calipers with matched discs, aimed at owners who use their A35 hard, fast road runs into track days, and want the brake balance to stay predictable once the standard rear setup starts to wilt. With three pad compounds and a larger, lighter rotor package, it lets you match the rear bite to how you actually drive.

What this big brake kit does for your 2019-2026 Mercedes Benz A Class W177 A35 4WD

The first thing you notice is pedal consistency. A rear setup with more thermal mass resists the fade that creeps in after a few hard laps, so the brake balance the A35 leaves the factory with holds together when you need it. The Racing compound bites hard and tolerates serious heat, the Sport pad widens the heat range for fast-road and the odd track day, and the Street option keeps dust and noise civil for daily use. Because the hollow rotor design trims unsprung and rotating mass at the back axle, the rear suspension can settle faster over kerbs and broken surfaces, which steadies the car mid-corner. On a front-heavy AWD hatch that tends towards understeer, a rear axle that bites cleanly under braking gives you a more neutral, rotatable platform to lean on.

About the Hollow rear brake kit

XYZ Racing’s Hollow line takes its name from a hollow-body forged caliper and two-piece floating disc design that removes mass without giving up disc area. The point of a big brake kit is more swept surface and more heat capacity, and doing that while keeping weight down is the hard part. The kit pairs an uprated rear disc with a bolt-on caliper and the hardware to mount both to the A35’s rear hubs. Discs are offered drilled or slotted at the same price, with two-tone anodized centre bells in five colours or titanium selectable at checkout. You choose the pad compound when you order: Street for road-biased use, Sport for a sharper feel with manageable dust and a wider heat range, and Racing for circuit work where heat tolerance matters more than cold refinement. The hollow-body caliper is standard, with an optional Hollow Racing upgrade rated to 1000C, no dust cover and a two-year warranty for serious track use. Calipers come in the included painted colours (Red, Yellow, Gold, Black and Anodized Black), a Custom Color, or the premium polished and candy ranges, so the kit can sit discreetly behind the wheels or read as a deliberate statement. It is a rear-specific kit, designed to complement the front brakes rather than replace the whole system in one go.

Fitment for the Mercedes Benz A Class W177 A35 4WD (2019-2026)

This kit is mapped to the W177-generation Mercedes Benz A Class in A35 4MATIC form, covering model years 2019 to 2026, fits the rear axle specifically, and ships as a matched pair of rear calipers and discs. Confirm your car is the A35 4WD variant on the W177 chassis before ordering, as fitment is matched to that hub and rear-brake spec.

What buyers also search for

• Mercedes A35 W177 rear big brake kit for track day use
• A35 4MATIC rear brake upgrade to cut fade on circuit
• W177 A35 rear brake kit with Sport and Racing pad options
• Mercedes A Class A35 caliper colour options including red, gold and custom

Choose your pad compound, disc style and caliper finish, and configure your A35 rear brake kit using the options above when you order.