XYZ Racing Hollow Rear Brake Kit — Mercedes Benz A CLASS W177 (Rr Twist-beam Suspension) (2019-2026)

On the twist-beam W177 A-Class, the front-driven A180, A200 and A220 cars that skipped the AMG multi-link rear, braking balance is deliberately weighted towards the front axle. That suits everyday driving, but lean on the brakes through a sequence of corners and the standard rear setup runs out of heat tolerance long before the chassis runs out of grip. The XYZ Racing Hollow Rear Brake Kit is built to fix that specific shortfall.

This rear big brake kit pairs lighter hollow-design discs with a fixed performance caliper to restore rear braking capacity on the W177. Supplied as a pair of left and right rear calipers with matched discs, it is aimed at fast-road and track-day drivers who want the rear axle carrying its share under repeated heavy braking, rather than handing everything forward.

What this brake kit does for your 2019-2026 Mercedes Benz A Class W177

Fit this kit and the clearest change is a firmer, more progressive pedal, because the rear discs finally share load the standard arrangement never properly took. The hollow disc design trims rotating and unsprung mass at the rear, which helps the twist-beam axle settle faster over mid-corner bumps. Three pad compounds, Street, Sport and Racing, let you match bite and heat range to how you actually drive, from the daily commute through fast-road work to back-to-back track sessions. Rear fade backs off, so the front brakes stop doing all the work and the car stays composed when you trail the brakes into a tight entry. The fixed caliper also flexes less than the sliding factory unit, which sharpens the response under your foot.

About the Hollow rear brake kit

XYZ Racing builds this kit around two-piece floating discs of hollow construction, where material is removed inside the disc to shed weight while keeping the swept area needed to shed heat. Less rotating mass at the rear means the brakes and the twist-beam axle react faster, and there is less inertia for the hubs and bearings to fight. Discs are offered drilled or slotted at the same price, with two-tone anodized centre bells in five colours or titanium selectable at checkout. The kit mounts a hollow-body performance caliper over the larger disc and runs your choice of pad: Street for refined street use, Sport for harder fast-road work, and Racing for sustained track abuse; a Hollow Racing caliper upgrade rated to 1000C, with no dust cover and a two-year warranty, is offered for serious circuit use. Calipers are finished in the included painted colours (Red, Yellow, Gold, Black and Anodized Black), a Custom Color matched to any Pantone, or the premium polished and candy ranges, so the upgrade can read boldly through the rear wheels or stay understated. Each kit is specified for the rear axle of the W177 A-Class rather than adapted from another platform.

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

This kit fits the W177-generation Mercedes Benz A-Class built from 2019 to 2026, specifically the variants running the rear twist-beam suspension rather than the multi-link rear used on the higher-output AMG cars, and ships as a matched pair of rear calipers and discs. It is a rear-axle kit, intended to run alongside your existing or upgraded front brakes. Confirm your car uses the twist-beam rear axle before ordering.

What buyers also search for

• Mercedes Benz A-Class W177 rear big brake kit for fast-road and track use
• W177 A-Class rear brake upgrade that resists fade under repeated braking
• Twist-beam A-Class rear discs with Street, Sport or Racing pad options
• Mercedes A-Class W177 rear caliper colour choices including Red, Black and Custom
• Lightweight hollow rear discs for the 2019-2026 A-Class W177

Choose your pad compound, disc style and caliper colour for the W177 A-Class, then configure your kit using the options above when you order.