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Big Brake Kit

XYZ Racing Hollow Front Brake Kit — Smart SMART (FOR FOUR) (2014-2026)

SKU: XYZ-BRK-BKF-SM-003-A-FRONT

  • IncludesFront axle pair (2 discs + 2 calipers)
  • PositionFront
  • Disc Ø286–444 mm
  • Caliper pots4 / 8 / 12-pot
  • Lead time10–15 working days

Fits Smart SMART (FOR FOUR) (2014-2026)

Brake pad compound

Street: quiet, low-dust, strong cold bite for road driving. Sport: higher temperature range and more bite for fast road and occasional track. Racing: maximum fade resistance for sustained track use (noisier and dustier cold). Match the pad to how hard you actually brake.

Disc size

Caliper grade

Hollow is the standard caliper: a lighter hollow-body forged caliper with a dust cover and a 5-year warranty. Hollow Racing drops the dust cover for sustained high-temperature use (rated to 1000°C, 2-year warranty) — the track-grade choice.

Caliper colour

Painted colours are included. Polished-forged finishes are mirror-polished forged calipers (Titanium, Gold, Silver); candy colours are a deep, mirror-reflection paint. Both are premium upgrades — fuller detail further down the page.

Painted — includedTell us the exact Pantone (PMS) code you want the calipers painted.Polished forgedCandy
Disc style

Drilled discs (cross-drilled holes) vent gas and water and look aggressive; slotted discs (surface grooves) wipe the pad face clean and resist fade under sustained hard use. Same price — choose on looks or how you drive.

Centre bell

The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. Standard anodized is included; a two-tone bell adds an anodized accent ring in your choice of colour; titanium is the lightest, forged option.

Carbon-ceramic rotor

Carbon-ceramic rotors are a special-order track upgrade: far lighter than steel, fade-resistant at extreme temperatures and extremely long-lived. The price follows the disc size you choose above. The standard two-piece steel rotor is included.

Configured price£1,600.00Inc. VAT

Lead time: 10–15 working days from payment


£1,600.00

Made to order. Full payment is taken at checkout. Production begins once payment is confirmed.

Pay by card, Apple Pay, Google Pay — or Klarna on eligible orders.

Caliper render for this kit:

XYZ Racing Hollow Front Brake Kit — Smart SMART (FOR FOUR) (2014-2026) — 286 mm
286 mm

The W453 Forfour’s rear-engined architecture creates a braking dynamic unlike almost any other car in its segment. With the weight concentrated behind the rear axle, the front wheels shed load quickly under hard braking, so what they need from a brake kit is precision and thermal headroom, not raw stopping force. This XYZ Racing front kit is built around exactly that balance, lifting the platform’s front-end response and fade resistance without overloading an axle never designed to bear the full braking burden alone. It is a matched pair of front calipers and two-piece floating front discs, and it leaves the rear axle untouched.

That logic applies across the entire 2014-2026 production run, standard Forfour and Brabus-edition variants included. If you have already addressed tyres, geometry, or the suspension, the front brakes are the next logical step.

What this brake kit does for your 2014-2026 Smart SMART (FOR FOUR)

The two-piece floating disc draws air across the rotor face under load, shedding heat faster than a one-piece OE disc. On a sub-1000kg car like the Forfour, that means the front brakes stay firmly in their operating window even during repeated hard stops, the pedal staying consistent where a standard disc would begin to fade. The reduced rotating and unsprung mass also sharpens turn-in on a light city car. Three pad compounds let you match the material to use: Street is the quiet, low-dust default for a road-biased Forfour, Sport adds bite and a wider heat range for the occasional track day, and Racing is the dedicated compound where sustained circuit temperatures justify a harder-working pad. Caliper finish runs from the included Red, Yellow, Gold, Black, and Anodized Black at no extra cost, through any Pantone as a Custom Color, to premium polished-forged and candy options, giving a car with inherently slim wheel clearances a proper visual statement to match the mechanical upgrade.

About the Hollow Front Brake Kit

The caliper is hollow-bodied as standard, a forged construction built to work within the Forfour’s unusual weight distribution, keeping mass low without losing clamping rigidity. Serious track users can specify the optional Hollow Racing caliper, which deletes the dust cover, is rated to 1000C, and carries a two-year warranty. The two-piece floating disc improves airflow across the rotor surface during use, reducing heat accumulation and maintaining pedal feel through situations that expose the limits of standard cast discs. Pad selection spans Street, Sport, and Racing, so the kit can be configured for a daily-driven Forfour, a fast-road build, or a dedicated circuit car without compromising on compound. Discs are available drilled or slotted at the same price, and the centre bells can be upgraded to a two-tone anodized finish in five colours or to titanium, all selectable when you order. The specification is equally suited to the standard three-cylinder Forfour and the higher-output Brabus variants, where uprated engine tuning makes a coherent front brake upgrade a worthwhile complement.

Fitment for the Smart SMART (FOR FOUR) (2014-2026)

This kit covers the W453-generation Smart SMART (FOR FOUR) produced from 2014 through to 2026, spanning both the petrol and Forfour EQ variants across the run. Confirm your build year falls within that range before ordering, and note that pad compound and caliper colour are selected at the configuration stage.

What buyers also search for

  • Smart Forfour W453 front brake upgrade for road and track use
  • Smart SMART (FOR FOUR) two-piece disc brake kit with selectable pad compound
  • 2014-2026 Smart Forfour front brake kit for Brabus and standard models
  • Smart Forfour big brake kit with custom Pantone caliper colour options
  • W453 front brake upgrade that works with standard wheel clearances

Confirm your build year, then select your pad compound and caliper colour from the options above.

What’s in the kit

Front axle kit — supplied as a complete bolt-on assembly.

  • 2×Two-piece floating discs — 286–444 mm: you pick the exact diameter with the "Disc size" option
  • 2×Lightweight aluminium centre bells
  • 2×Forged aluminium calipers — 4 / 8 / 12-pot
  • 2×High-stiffness mounting brackets
  • 2×Braided stainless steel brake lines
  • 4×High-performance brake pads (1 set)
  • 1×Fitting hardware & tools pack

Choosing your spec

Every kit is built to order around the choices you make above. Here is what each option actually changes, so you can spec yours with confidence.

Brake pads — Street, Sport or Racing

Every kit ships with a full set of high-performance pads; the compound is your call.

Street is the right default for fast-road driving — a strong, progressive cold bite with low noise, low dust and long disc life. Sport raises the working temperature and adds bite and fade resistance for hard road use and the occasional track day, while still behaving on a cold morning. Racing is a track compound built for sustained abuse: huge fade resistance and bite once heat is in it, at the cost of more noise and dust when cold. Match the pad to how hard you actually use the brakes — there is no benefit to a race pad that never gets up to temperature.

Caliper grade — Hollow vs Hollow Racing

Hollow is the standard caliper on every kit: a hollow-body forged caliper, lighter than a solid one, fitted with a dust cover and backed by a 5-year oil-leak warranty. For most fast-road and spirited track use it is all the caliper you need.

Hollow Racing is the track-grade upgrade. It runs the same hollow body but without a dust cover (so there is nothing to melt at sustained high temperature), uses a twin-metal piston that isolates heat travelling from the disc to the oil seal, and is rated to 1000°C. Available 286–380mm (front). Warranty is 2 years on oil leaks and 10 years on appearance. Built for professional racing and repeated track days.

Hollow Racing caliper

Caliper colour & finish

Painted colours (Red, Yellow, Gold, Black, Anodized Black) are included at no cost. Want an exact match to your car? Custom Color (+£150) paints the calipers to any Pantone code you supply (15–20 day lead time).

Polished Forged finishes are the flagship: a forged caliper given a mirror-polished surface treatment that shifts colour with the viewing angle. Beyond the looks, the polished surface dissipates heat better, resists rust and stands up to the weather. Choose Titanium (neochrome, +£350), Polished Gold (+£300) or Polished Silver (+£250). They look their best paired with a titanium centre bell. Care: clean only with a dilute neutral cleaner or water.

Candy colours (+£200) use a deep candy-paint and polishing process for a mirror-reflection, boutique finish — pick Teal, Blue, Red or Orange (shown below right).

Polished forged caliper finishes
Candy caliper colours

Centre bells

The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. The standard anodized centre bell is included. The Two-tone bell (+£200) adds an anodized accent ring — choose Red, Yellow, Orange, Purple or Silver right here at checkout. The Titanium centre bell (+£500) is a forged titanium bell (bolts not included) that finishes off the polished-forged look.

Two-tone anodized centre bells
Same car

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